Ornithologists

Vote for Your Favourite Ornithologists

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 1 
Bill Oddie
(Writer)
Bill Oddie
8
Birthdate: July 7, 1941
Sun Sign: Cancer
Birthplace: Rochdale, Lancashire, England, UK
Bill Oddie is a versatile English professional with a wide array of talents. He is recognized for his roles as an actor, artist, comedian, musician, songwriter, and writer. Oddie has made notable achievements in the fields of birding, conservation, and television presenting, particularly on wildlife topics. His proficiency in naturalism is reflected in his books, which often include his original artwork. Oddie has hosted several wildlife programs for the BBC, demonstrating his deep passion for nature and wildlife conservation.
 2 
John James Audubon
(US Artist and Ornithologist Known for His Drawings of North American Birds)
John James Audubon
4
Birthdate: April 26, 1785
Sun Sign: Taurus
Birthplace: Les Cayes
Died: January 27, 1851
John James Audubon was a renowned self-trained artist, naturalist, and ornithologist known for his comprehensive studies and detailed illustrations of American birds in their natural habitats. His major work, The Birds of America, is highly regarded for its exquisite color plates and is considered a significant ornithological achievement. Audubon identified 25 new bird species and contributed numerous scientific names that are still in use today. His legacy includes being the namesake of the National Audubon Society and having various locations in the United States named in his honor.
 3 
Konrad Lorenz
(Austrian Zoologist, Ethologist, Ornithologist and Winner of 1973 Nobel Prize in Medicine)
Konrad Lorenz
4
Birthdate: November 7, 1903
Sun Sign: Scorpio
Birthplace: Vienna, Austria
Died: February 21, 1989
Konrad Lorenz was an Austrian scientist known for his pioneering work in ethology, the study of animal behavior. He was awarded the Nobel Prize in Physiology or Medicine in 1973 for his significant contributions to this field. Lorenz's research on instinctive behavior, particularly imprinting in birds, was groundbreaking. He collaborated with Nikolaas Tinbergen to establish ethology as a distinct branch of biology. Despite facing interruptions during World War II, Lorenz's work has had a lasting impact, with many of his books widely read in the scientific community.
 4 
Walter Rothschild, 2nd Baron Rothschild
(British Politician and Zoologist Who Served as a Member of Parliament from Aylesbury)
Walter Rothschild, 2nd Baron Rothschild
3
Birthdate: February 8, 1868
Sun Sign: Aquarius
Birthplace: England
Died: August 27, 1937
Lionel Walter Rothschild, 2nd Baron Rothschild, was a prominent British figure known for his roles in banking, politics, zoology, and the military. He was a key leader in the Zionist movement and played a crucial part in securing the Balfour Declaration, which supported the establishment of a Jewish homeland in Palestine. Additionally, he served as the president of the Board of Deputies of British Jews from 1925 to 1926. Throughout his career, Rothschild made significant contributions to various fields, highlighting his diverse interests and talents.
 5 
Peter Scott
(Ornithologist)
Peter Scott
3
Birthdate: September 14, 1909
Sun Sign: Virgo
Birthplace: London, England
Died: August 29, 1989
Sir Peter Markham Scott was a renowned British ornithologist, conservationist, painter, naval officer, broadcaster, and sportsman. He established the Wildfowl & Wetlands Trust in Slimbridge, co-founded the World Wide Fund for Nature, designed its logo, and received accolades such as knighthood for conservation work, the WWF Gold Medal, and the J. Paul Getty Prize. He was an accomplished yachtsman, glider pilot, and Olympic medalist in sailing. His dedication to wildlife conservation and environmental activism had a lasting impact.
 6 
Ernst Mayr
(Biologist)
Ernst Mayr
3
Birthdate: July 5, 1904
Sun Sign: Cancer
Birthplace: Kempten
Died: February 3, 2005
Ernst Mayr, a prominent German-American evolutionary biologist, made significant contributions to the modern evolutionary synthesis. He was known for his work as a taxonomist, tropical explorer, ornithologist, philosopher of biology, and historian of science. Mayr's revolutionary definition of species highlighted breeding isolation as a crucial factor, reshaping the understanding of species. His theory of peripatric speciation, developed from his research on birds, continues to shape evolutionary biology. Mayr's pioneering work also laid the groundwork for punctuated equilibrium theory and contributed to the advancement of the philosophy of biology.
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 7 
Salim Ali
(Ornithologist)
Salim Ali
8
Birthdate: November 12, 1896
Sun Sign: Scorpio
Died: June 20, 1987
Salim Ali was an Indian ornithologist and naturalist renowned as the "Birdman of India". He conducted comprehensive bird surveys throughout India, wrote popular bird books, and was instrumental in the Bombay Natural History Society. Ali's work resulted in the establishment of the Bharatpur bird sanctuary and the conservation of the Silent Valley National Park. He co-wrote the Handbook of the Birds of India and Pakistan and received prestigious civilian honors in India. Numerous bird species, a fruit bat, a gecko, bird sanctuaries, and institutions are named in his honor.
 8 
Charles Lucien Bonaparte
(French Ornithologist and Naturalist)
Charles Lucien Bonaparte
5
Birthdate: May 24, 1803
Sun Sign: Gemini
Birthplace: Paris, France
Died: July 29, 1857
Charles Lucien Bonaparte was a prominent French naturalist and ornithologist who made significant contributions to the fields of zoology and taxonomy. He conducted extensive research on birds and published several influential works in ornithology. Bonaparte established himself as a respected authority on avian classification and taxonomy, introducing new methods and concepts in the study of birds. His work was crucial in advancing the understanding of avian species and their relationships, leaving a lasting impact on the field of ornithology.
 9 
Nikolaas Tinbergen
(Ornithologist)
Nikolaas Tinbergen
3
Birthdate: April 15, 1907
Sun Sign: Aries
Birthplace: The Hague, Netherlands
Died: December 21, 1988
Nikolaas "Niko" Tinbergen, a Dutch biologist and ornithologist, is renowned for his groundbreaking contributions to ethology, the study of animal behavior. His significant research on individual and social behavior patterns in animals earned him the 1973 Nobel Prize in Physiology or Medicine. Tinbergen authored the influential book "The Study of Instinct" in 1951 and collaborated on wildlife films during the 1960s. Teaming up with filmmaker Hugh Falkus, they created award-winning documentaries such as "The Riddle of the Rook" and "Signals for Survival," highlighting Tinbergen's commitment to comprehending and conveying animal behavior.
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 10 
James Bond
(US Ornithologist and an Expert on Birds of the Caribbean)
James Bond
3
Birthdate: January 4, 1900
Sun Sign: Capricorn
Birthplace: Philadelphia
Died: February 14, 1989
James Bond was a renowned American ornithologist, particularly known for his extensive knowledge of Caribbean birds, as showcased in his definitive publication "Birds of the West Indies" in 1936. He served as a curator at the Academy of Natural Sciences of Philadelphia and made substantial advancements in the field of ornithology. Bond's impact transcended the scientific realm, as his name was famously borrowed by author Ian Fleming for the legendary fictional British spy character. Embracing this association, Bond's influence is evident across the media franchise.
 11 
John Gould
(Ornithologist)
John Gould
3
Birthdate: September 14, 1804
Sun Sign: Virgo
Birthplace: Lyme Regis, United Kingdom
Died: February 3, 1881
John Gould, an English ornithologist, is renowned for his published monographs on birds, many of which were illustrated by his wife and other artists. He is widely regarded as the pioneer of bird study in Australia, with the Gould League established in recognition of his contributions. Gould's identification of the birds known as "Darwin's finches" played a crucial role in supporting Darwin's theory of evolution through natural selection. His work is cited in Charles Darwin's seminal work, On the Origin of Species, underscoring his significant impact on the fields of ornithology and evolutionary biology.
 12 
Gilbert White
(Naturalist)
Gilbert White
5
Birthdate: July 18, 1720
Sun Sign: Cancer
Birthplace: Selborne, Hampshire, England
Died: June 26, 1793
Gilbert White, a renowned "parson-naturalist," made significant contributions to the fields of natural history, ecology, and ornithology. His work, particularly the book Natural History and Antiquities of Selborne, established him as a pioneering English naturalist. White devoted his career to studying the flora and fauna of the English countryside, offering valuable insights into the natural world. His observations and writings are still highly esteemed in the scientific community, solidifying his legacy as a major figure in the field of natural history.
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 13 
William Beebe
(US Explorer and Ornithologist Who Co-Discovered the Bathysphere)
William Beebe
5
Birthdate: July 29, 1877
Sun Sign: Leo
Birthplace: Brooklyn, New York, United States
Died: June 4, 1962
Charles William Beebe was a renowned multi-disciplinary scientist, excelling in natural history, ornithology, marine biology, entomology, exploration, and writing. His expeditions for the New York Zoological Society, pioneering Bathysphere deep dives, and extensive publications for various audiences established him as a prominent figure in scientific research. Beebe's global pheasant documentation project and innovative studies on insect behavior resulted in significant scientific advancements and earned him honorary doctorates. His groundbreaking work in marine biology and ecology, particularly through Bathysphere dives, cemented his legacy in these fields.
 14 
Edward Adrian Wilson
(Explorer, Ornithologist, Painter, Scientist)
Edward Adrian Wilson
3
Birthdate: July 23, 1872
Sun Sign: Leo
Birthplace: Cheltenham
Died: March 29, 1912
Edward Adrian Wilson was a versatile professional known for his expertise in polar exploration, ornithology, natural history, medicine, and art. He participated in expeditions to Antarctica, making significant contributions to scientific research and mapping. Wilson's skills as an ornithologist and natural historian led to important discoveries and publications. His medical background enabled him to provide valuable support to his expedition teams. Wilson's artistic talents were evident in his detailed illustrations of wildlife and landscapes, showcasing his multidisciplinary approach to exploration and science.
 15 
William Henry Hudson
(Anglo-Argentine Author, Naturalist and Ornithologist)
William Henry Hudson
4
Birthdate: August 4, 1841
Sun Sign: Leo
Birthplace: Quilmes, Buenos Aires Province, Argentina
Died: August 18, 1922
William Henry Hudson achieved renown as an Anglo-Argentine author, naturalist, and ornithologist. Throughout his career, he made significant contributions to literature and the study of nature. His works focused on themes of nature, wildlife, and the environment, establishing him as a trailblazer in natural history writing. By capturing the beauty of the natural world through his observations and writings, Hudson raised awareness about conservation and the necessity of protecting biodiversity for future generations.
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 16 
William Bartram
(The First Naturalist Who Penetrated the Dense Tropical Forests of Florida)
William Bartram
3
Birthdate: April 20, 1739
Sun Sign: Taurus
Birthplace: Philadelphia, Pennsylvania, United States
Died: July 22, 1823
William Bartram was an American naturalist and writer famous for his book, Bartram's Travels, which chronicles his expeditions through the Southern Colonies from 1773 to 1777. He explored the dense tropical forests of Florida, becoming the first naturalist to do so, and was one of the earliest American ornithologists, gathering type specimens of 14 bird species. Bartram's valuable contributions to botanical literature earned him recognition and membership in the American Philosophical Society. His work is highly regarded in scientific circles and botanical references.
 17 
Hubert Wilkins
(Australian Polar Explorer, Ornithologist, Pilot, Soldier, Geographer and Photographer)
Hubert Wilkins
2
Birthdate: October 31, 1888
Sun Sign: Scorpio
Birthplace: Mount Bryan, Australia
Died: November 30, 1958
Hubert Wilkins, a renowned Australian explorer, ornithologist, pilot, soldier, geographer, and photographer, was recognized for his leadership during the Battle of the Hindenburg Line with the award of the Military Cross. Notably, he was the sole Australian photographer from any conflict to be honored with a combat medal. Wilkins spearheaded a groundbreaking submarine expedition beneath the North Pole, showcasing the potential for submarines to operate under the polar ice cap. This milestone laid the foundation for future successful polar exploration missions. In 1959, the US Navy paid tribute to Wilkins by transporting his ashes to the North Pole on the USS Skate.
 18 
Robert Dougall
(Ornithologist)
Robert Dougall
2
Birthdate: November 27, 1913
Sun Sign: Sagittarius
Birthplace: Croydon, Surrey, England
Died: December 19, 1999
Robert Neill Dougall was an English broadcaster and ornithologist, recognized for his contributions as a newsreader and announcer. Initially working in the BBC's accounts department, he shifted to radio announcing in 1934. During World War II, Dougall reported for the BBC and later joined the Royal Naval Volunteer Service. Following the war, he resumed his career at the BBC, fulfilling different roles such as a television newsreader. Additionally, Dougall was the president of the Royal Society for the Protection of Birds, playing a key role in increasing its membership.
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 19 
Roger Tory Peterson
(US Ornithologist and a Leading Figure of the 20th-Century Environmental Movement)
Roger Tory Peterson
2
Birthdate: August 28, 1908
Sun Sign: Virgo
Birthplace: Jamestown, New York, United States
Died: July 28, 1996
Roger Tory Peterson was a prominent American naturalist, ornithologist, artist, and educator known for his significant contributions to the environmental movement. He revolutionized the study of birds through his pioneering work in birdwatching and innovative field guides. Peterson's illustrations and writings played a crucial role in popularizing birdwatching and promoting nature conservation, inspiring many to value and safeguard the natural world. His legacy as a wildlife champion and environmental advocate endures through his impactful art, writings, and advocacy efforts.
 20 
Lorenz Oken
(One of the Most Prominent German Natural Philosophers of the 19th Century)
Lorenz Oken
2
Birthdate: August 1, 1779
Sun Sign: Leo
Birthplace: Bohlsbach, Germany
Died: August 11, 1851
Lorenz Oken was a prominent figure in the field of natural sciences, recognized for his contributions as a naturalist, botanist, biologist, and ornithologist. He significantly advanced the study of living organisms, particularly through his research on the classification and comprehension of plants and animals. Oken's work and writings were instrumental in shaping the fundamentals of modern biology, influencing scientific thinking up to the present day. His unwavering commitment to the natural world and groundbreaking research have made a lasting impact on the field of biology.
 21 
Spencer Fullerton Baird
(US Naturalist, Ornithologist, and Zoologist Who Mostly Studied North American Birds and Mammals)
Spencer Fullerton Baird
2
Birthdate: February 3, 1823
Sun Sign: Aquarius
Birthplace: Reading, Pennsylvania, United States
Died: August 19, 1887
Spencer Fullerton Baird was a distinguished American naturalist recognized for his extensive knowledge in ornithology, ichthyology, and herpetology. He was instrumental in developing the Smithsonian Institution, serving as its inaugural curator before advancing to the positions of assistant Secretary and later Secretary. Baird notably enriched the Institution's natural history collections during his leadership. Furthermore, he held the role of U.S. Commissioner of Fish and Fisheries and was a prolific author, producing more than 1,000 publications throughout his career.
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 22 
Giovanni Antonio Scopoli
(Italian Naturalist and Physician)
Giovanni Antonio Scopoli
0
Birthdate: June 3, 1723
Sun Sign: Gemini
Birthplace: Cavalese, Italy
Died: May 8, 1788
Giovanni Antonio Scopoli was a respected Italian physician and naturalist recognized for his important advancements in medicine and natural history. He was often referred to as the "Linnaeus of the Austrian Empire" due to his pioneering efforts in the taxonomy and classification of plants, animals, and minerals. His thorough studies and precise observations established a strong base for subsequent scientific investigations, establishing him as a prominent figure in the progress of biological sciences in the 18th century.
 23 
Thomas Pennant
(Welsh Naturalist, Traveller and Writer Known for Writings on Natural History, Geology and Geographical Expeditions)
Thomas Pennant
2
Birthdate: June 14, 1726
Sun Sign: Gemini
Birthplace: Downing, Wales
Died: December 16, 1798
Thomas Pennant was a Welsh naturalist, traveller, writer, and antiquarian celebrated for his significant contributions to natural history and travel literature. His works, including British Zoology and The History of Quadrupeds, had a notable influence on figures such as Samuel Johnson. Pennant conducted extensive travels throughout Britain and Europe, meticulously documenting his observations on geography, wildlife, and local customs. As an antiquarian, he curated a substantial collection of scientific works and art. His detailed travel accounts, often complemented by illustrations, offered valuable insights into lesser-known regions for the British public.
 24 
Clinton Hart Merriam
(Father of Mammalogy)
Clinton Hart Merriam
2
Birthdate: December 5, 1855
Sun Sign: Sagittarius
Birthplace: New York, New York, United States
Died: March 19, 1942
Clinton Hart Merriam was a prominent American scientist known for his extensive contributions to various fields, including zoology, mammalogy, ornithology, entomology, ecology, ethnography, geography, and natural history. He played a crucial role in the development of mammalogy and was recognized as the "father of mammalogy." Merriam's work focused on studying and documenting the diverse wildlife of North America, leading to important advancements in the understanding of animal behavior, distribution, and classification. His multidisciplinary approach and dedication to science left a lasting impact on the field of biology.
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 25 
Ronald Lockley
(Welsh Ornithologist and Naturalist Best Known for His Book 'The Private Life of the Rabbit')
Ronald Lockley
2
Birthdate: November 8, 1903
Sun Sign: Scorpio
Birthplace: Cardiff, Wales
Died: April 12, 2000
Ronald Mathias Lockley, a renowned Welsh ornithologist and naturalist, made significant contributions to the field of natural history. He authored over fifty books covering a wide range of wildlife topics, with a special focus on shearwaters. Lockley's work, including the influential book "The Private Life of the Rabbit," was a valuable resource for fellow naturalists and writers. His collaboration with Richard Adams on "Watership Down" further established his reputation as a respected expert in wildlife study and conservation.
 26 
John Gerrard Keulemans
(Illustrator)
John Gerrard Keulemans
2
Birthdate: June 8, 1842
Sun Sign: Gemini
Birthplace: Rotterdam, Netherlands
Died: March 29, 1912
Johannes Gerardus Keulemans, known as John Gerrard Keulemans, was a prominent Dutch bird illustrator who made significant contributions to ornithology during the nineteenth century. He mainly lived and worked in England, collaborating with renowned ornithologists and authors to illustrate various bird species. Keulemans' detailed and accurate illustrations adorned many esteemed ornithology books, establishing him as a talented and influential artist in the study of birds.
 27 
Elliott Coues
(American Ornithologist Who Advanced the Study and Classification of 'North American Birds')
Elliott Coues
1
Birthdate: September 9, 1842
Sun Sign: Virgo
Birthplace: Portsmouth, New Hampshire, United States
Died: December 25, 1899
Elliott Ladd Coues was a renowned American army surgeon, historian, ornithologist, and author. He conducted surveys in the Arizona Territory and served as secretary of the United States Geological and Geographical Survey of the Territories. Coues was instrumental in establishing the American Ornithological Union in 1883 and served as the editor of its publication, The Auk. His significant contributions to ornithology and scientific exploration have had a lasting impact on the field, advancing our understanding of bird species and habitats.
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 28 
Sidney Dillon Ripley
(American Wildlife Conservationist and Ornithologist)
Sidney Dillon Ripley
1
Birthdate: September 20, 1913
Sun Sign: Virgo
Birthplace: New York, New York, United States
Died: March 12, 2001
Sidney Dillon Ripley II was a prominent American ornithologist and wildlife conservationist who served as the Secretary of the Smithsonian Institution for twenty years, from 1964 to 1984. His leadership was instrumental in guiding the institution through a period of substantial growth and expansion. In 1985, Ripley was awarded the Presidential Medal of Freedom by President Ronald Reagan in recognition of his significant contributions. His commitment to wildlife conservation and his influential tenure at the Smithsonian cemented his reputation as a highly regarded figure in the field.
 29 
Edward Max Nicholson
(Environmentalist, Ornithologist and Internationalist Best Remembered as a Founder of the ‘World Wildlife Fund’)
Edward Max Nicholson
1
Birthdate: July 12, 1904
Sun Sign: Cancer
Birthplace: Kilternan, Ireland
Died: April 26, 2003
Edward Max Nicholson was a pioneering environmentalist, ornithologist, and internationalist recognized for his significant contributions to wildlife conservation. He played a key role in founding the World Wildlife Fund, a renowned organization committed to safeguarding endangered species and their habitats. Throughout his career, Nicholson prioritized raising environmental awareness and promoting sustainable practices. His efforts have had a lasting influence on conservation, motivating future generations to protect the natural world.
 30 
Tso-hsin Cheng
(Ornithologist)
Tso-hsin Cheng
1
Birthdate: November 18, 1906
Sun Sign: Scorpio
Birthplace: Fuzhou, China
Died: June 27, 1998
Tso-hsin Cheng, a prominent Chinese ornithologist, made significant contributions to the study of birds in China. After completing his education in the United States, he chose to stay in mainland China after World War II, unlike many of his colleagues who moved to Taiwan. Despite his Communist Party affiliation, Cheng encountered difficulties during the Cultural Revolution. He played a crucial role in promoting ornithology in China and mentoring a new wave of researchers.
 31 
Alfred Newton
(Ornithologist)
Alfred Newton
1
Birthdate: June 11, 1829
Sun Sign: Gemini
Birthplace: Geneva, Switzerland
Died: June 7, 1907
Alfred Newton was an esteemed English zoologist and ornithologist who made significant contributions to the field of ornithology. He held the position of Professor of Comparative Anatomy at Cambridge University for more than four decades. Newton was a prolific writer, known for works like the Dictionary of Birds and contributions to the Encyclopædia Britannica on ornithology. He also served as an editor for the journal Ibis and received prestigious awards such as the Royal Medal of the Royal Society and the Gold Medal of the Linnaean Society. Newton was a key figure in the establishment of the British Ornithologists Union.
 32 
Florence Merriam Bailey
(American Birdwatcher, Ornithologist, and Nature Writer)
Florence Merriam Bailey
1
Birthdate: August 8, 1863
Sun Sign: Leo
Birthplace: Locust Grove, Syosset, New York, United States
Died: September 22, 1948
Florence Merriam Bailey was an influential American ornithologist, birdwatcher, and nature writer known for her field guides on North American bird life. She encouraged outdoor study of live birds and promoted ecological awareness through works like "Birds Through a Looking-Glass" and "Birds of Village and Field." Her observations and magnum opus "Birds of New Mexico" made significant contributions to ornithology. Bailey was a pioneering figure, being the first woman elected as a Fellow of the American Ornithologists' Union and receiving the Brewster Medal for her achievements.
 33 
Frank Chapman
(American Ornithologist and Writer of Field Guides)
Frank Chapman
1
Birthdate: June 12, 1864
Sun Sign: Gemini
Birthplace: Teaneck, New Jersey, United States
Died: November 15, 1945
Frank Michler Chapman was an American ornithologist recognized for his innovative efforts in producing field guides. He was instrumental in popularizing birdwatching as both a recreational hobby and a serious scientific endeavor. Chapman's notable achievements in ornithology encompass initiating the Christmas Bird Count and developing comprehensive field guides that aided bird enthusiasts in species identification. His commitment to the study and documentation of birds has had a lasting influence on the realm of ornithology and global conservation initiatives.
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 34 
Alexander Wetmore
(American Ornithologist and Paleontologist Known for His Research on Birds of the Western Hemisphere)
Alexander Wetmore
1
Birthdate: June 18, 1886
Sun Sign: Gemini
Birthplace: North Freedom, Wisconsin, United States
Died: December 7, 1978
Frank Alexander Wetmore was a renowned American ornithologist and avian paleontologist. He held the position of the sixth Secretary of the Smithsonian Institution and was a distinguished member of esteemed scientific organizations. Wetmore conducted thorough investigations on fossil birds, greatly advancing the global classification of birds. He led significant scientific expeditions, authored influential publications on bird classification, and held pivotal positions in various scientific societies. Wetmore's lasting legacy includes multiple taxa named in recognition of his contributions and his profound research on birds and their environments.
 35 
Margaret Morse Nice
(American Ornithologist Who is Remembered for His Extensive Study of Song Sparrow)
Margaret Morse Nice
1
Birthdate: December 6, 1883
Sun Sign: Sagittarius
Birthplace: Amherst, Massachusetts, United States
Died: June 26, 1974
Margaret Morse Nice was a renowned American scientist known for her pioneering research on the life history of the song sparrow and her contributions to the understanding of bird behavior. Her work, detailed in "Studies in the Life History of the Song Sparrow," has had a significant impact on the field of ornithology. Additionally, Nice's early observations on chicken hierarchies foreshadowed the concept of the "pecking order." Later in her career, she conducted studies on language learning in children, producing a series of influential research papers that solidified her reputation as a respected researcher.
 36 
John Xantus
(Zoologist, Ornithologist)
John Xantus
0
Birthdate: October 5, 1825
Sun Sign: Libra
Birthplace: Hungary
Died: December 13, 1894
John Xantus de Vesey, also known as de Csíktaplócza, was a Hungarian exile and zoologist. Trained as a lawyer, he served in the Hungarian Army during the uprisings of 1848–1849. After being exiled and escaping to the United States, he pursued various occupations before developing an interest in natural history. He worked as an assistant surgeon under Dr. William Hammond, collecting specimens for the United States National Museum. Xantus later held a consular position in Mexico before returning to Hungary. He served as the Director of the Zoological Garden of Budapest, curator of ethnography at the Hungarian National Museum, and conducted collecting expeditions in Asia.
 37 
Jean Théodore Delacour
(French-American Aviculturist and Ornithologist Who Reared and Studied Rare Birds)
Jean Théodore Delacour
1
Birthdate: September 26, 1890
Sun Sign: Libra
Birthplace: Paris, France
Died: November 5, 1985
Jean Théodore Delacour, a renowned ornithologist and aviculturist of French origin who later became American, was celebrated for his discoveries and successful rearing of some of the rarest birds globally. Delacour founded thriving aviaries in Villers-Bretonneux and Clères, both unfortunately destroyed during World War One and World War Two, respectively. He subsequently relocated to the United States, focusing on avian systematics and playing a pivotal role as a founding member of the International Committee for Bird Protection, later known as BirdLife International. Among Delacour's notable findings was the identification of the imperial pheasant as a hybrid between the Vietnamese pheasant and the silver pheasant.
 38 
Peter Marler
(British-born American Zoosemiotician and Ethologist)
Peter Marler
1
Birthdate: February 24, 1928
Sun Sign: Pisces
Birthplace: Slough, United Kingdom
Died: July 5, 2014
Peter Robert Marler was an esteemed British-born American ethologist and zoosemiotician known for his research on animal sign communication and bird song science. He served as an emeritus professor of neurobiology, physiology, and ethology at the University of California, Davis, following his time as a 1964 Guggenheim Fellow. Marler's professional contributions have greatly advanced the understanding of animal communication through signs and vocalizations, with a particular emphasis on the complex realm of bird songs, leaving a lasting mark on the field of ethology.
 39 
Richard Pough
(US Ornithologist and Conservationist Known for His Pioneering Work on Bird Preservation)
Richard Pough
0
Birthdate: April 19, 1904
Sun Sign: Aries
Birthplace: New York City, New York, United States
Died: June 24, 2003
Richard Pough, a well-known US ornithologist and conservationist, is famous for his widely acclaimed bird guides developed for the National Audubon Society. He founded and served as president of the Nature Conservancy, significantly contributing to conservation initiatives. Pough's advocacy inspired Rosalie Edge to establish the Hawk Mountain Sanctuary for birds. His collaboration with the American Museum of Natural History highlighted his dedication to wildlife education and research, establishing him as a prominent figure in ornithology and conservation.
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 40 
Frank Knowlton
(American Botanist, Ornithologist and Naturalist Who Discovered Much About the Distribution and Structure of Fossilized Plants)
Frank Knowlton
0
Birthdate: September 2, 1860
Sun Sign: Virgo
Birthplace: Brandon, Vermont, United States
Died: November 22, 1926
Frank Hall Knowlton was a renowned paleobotanist recognized for his pioneering research on fossilized plants and ancient climates. He was affiliated with the U.S. Geological Survey, where he made significant contributions in the field. Knowlton also had expertise in ornithology and played a crucial role in the publication of "Birds of the World." His professional endeavors were characterized by a deep devotion to scientific inquiry, a commitment to education, and a lasting influence on the realms of paleobotany and geology.