Cassin's Kingbird
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| Tyrannus vociferans (Swainson, 1826) |
The Cassin's Kingbird, Tyrannus vociferance, is a large Tyrant flycatcher.
Adults have a gray head with slightly darker cheeks; a dark unforked tail with a buffy fringe and gray-olive underparts. They have a pale throat and yellow lower breast.
Juveniles are duller and have pale edges on their wings.
They built a bulky nest on a horizontal tree limp in mid-story or the canopy of trees. The three to five spotted white eggs have an incubation period of 18 to 19 days.
In the summer these birds can be found in California and from Montana to Utah. Their habitat includes rangelands and savannas.
These birds migrate to their winter quarters between Southern California and South America
The Cassin's Kingbird primarily feeds on insects it preys upon from high perches. It also eats berries and fruits in lesser quantities.
The call is a high-pitched shorter followed by a longer chirp, sounding like a 'chi-beer'.
The name of this bird commemorates the American ornithologist John Cassin.
[edit] References
- BirdLife International (2004). Tyrannus vociferans. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 13 July 2006. Database entry includes justification for why this species is of least concern
