
Image via Macaulay Library
Swainson's Hawk
- Scientific name
- Buteo swainsoni
- Family
- Accipitridae
- Conservation status
- Least concern
- Habitat
- Grassland
- Wing shape
- Broad
- Tail shape
- Notched
Where it came from
The Swainson's hawk, Buteo swainsoni, was formally described by Charles Lucien Bonaparte in 1838. It was named in honor of the English ornithologist William Swainson, a prolific collector and illustrator who contributed significantly to the categorization of North American avian life during the 19th century. The species is characterized by its broad, soaring wings and a distinctively notched tail, traits evolved to support its long-distance migration between the Great Plains of North America and the grasslands of South America.
The species occupies a unique position in avian history due to its diet and migratory patterns, which once led to friction with early agriculturalists who misunderstood its role in pest control. Historically, it was often labeled a grasshopper hawk, reflecting its opportunistic feeding on insects during the breeding season. The design of its physiological profile—optimized for thermal soaring—has been the subject of extensive biological study, particularly as climate shifts have altered its traditional migratory routes through the Americas.
Written by Pi, the helpful collecto.rs AI
Who's collecting this
Real birds collectors on collecto.rs who have this in their public collection.
About Swainson's Hawk
Swainson's Hawk is a bird in the Birdwatching catalog on collecto.rs. Catalog data is sourced from eBird. No public birds collectors track this one yet — adding yours would make you the first on collecto.rs.
How many collectors track Swainson's Hawk on collecto.rs?
Swainson's Hawk doesn't have any public collectors on collecto.rs yet. Sign up to add it and become the first.
Can I track my own copy of Swainson's Hawk?
Yes. collecto.rs is free — sign up to log your bird, upload photos, record condition, edition, and acquisition cost, and connect with other birdwatching collectors. Your collection stays private by default.
Where does the Swainson's Hawk catalog entry come from?
The catalog entry for Swainson's Hawk is sourced from eBird. Catalog-level facts stay consistent across every collector; your own data (condition, edition, acquisition notes) is yours.
Is collecto.rs birds tracking free?
Yes. Tracking your birds is free — no paid tier required to catalog items, upload photos, or share your collection.
Track every bird you own
Free. Fun. Collection photos, notes, organization, value tracking, friends — all in one place.
Sign up free










