Image via Macaulay Library
Cassin's Kingbird
- Scientific name
- Tyrannus vociferans
- Family
- Tyrannidae
- Conservation status
- Least concern
- Habitat
- Grassland
- Wing shape
- Broad
- Tail shape
- Notched
Where it came from
Cassin's Kingbird (Tyrannus vociferans) was formally described by William Swainson in 1826 and named in honor of the American ornithologist John Cassin. The species is native to the western United States and Mexico, characterized by its distinct gray head, olive-green back, and yellow belly. It belongs to the Tyrannidae family, a group of birds known for their assertive territorial behavior and aerial insect-hunting strategies.
The physical design of the species, marked by its broad wings and subtle notched tail, is highly functional for its life as a sit-and-wait predator. These features allow it to maneuver effectively while darting from exposed perches to catch insects in mid-air. Ornithological documentation from the nineteenth century highlights these adaptations, noting how its structural build supports its vocal and aggressive nature during the breeding season, which serves as the origin for its specific epithet, vociferans.
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 Cassin's Kingbird
Cassin's Kingbird 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 Cassin's Kingbird on collecto.rs?
Cassin's Kingbird 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 Cassin's Kingbird?
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 Cassin's Kingbird catalog entry come from?
The catalog entry for Cassin's Kingbird 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
