Cassin's Kingbird

Cassin's Kingbird

Taxobox
name = Cassin's Kingbird
status = LC | status_system = IUCN3.1


image_width = 250px
regnum = Animalia
phylum = Chordata
classis = Aves
ordo = Passeriformes
familia = Tyrannidae
genus = "Tyrannus"
species = "T. vociferans"
binomial = "Tyrannus vociferans"
binomial_authority = (Swainson, 1826)

The Cassin's Kingbird, "Tyrannus vociferans", 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 deep yellow lower breast.

Juveniles are duller and have pale edges on their wings.

They build a bulky nest on a horizontal tree limb in mid-story or the canopy of trees. The three to fivespotted 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, along the eastern Rocky Mountains. Theirhabitat includes rangelands and savannas.

These birds migrate to their winter quarters between Southern California and northern Central America. They are permanent residents in south-central Mexico, and their main wintering ranges are west of the Sea of Cortez on Baja California Sur, and east of the sea on the mainland of western Mexico.

The Cassin's Kingbird primarily feeds on insects it preys upon from high perches by hawking.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.

Mating Ritual

In early spring, presumably after having chosen (or shown up with) their mate, they launch into a peculiar dance. With excited high-pitched calls, they hover in unison, wings outstretched, over a favorite perch. This dance takes place several times a day over several days, over several separate sites in an area covering two or three acres. The sites chosen for the dance appear to be the same sites used as hunting perches during the spring and summer.

Gallery

References

* Database entry includes justification for why this species is of least concern

External links

* [http://vireo.acnatsci.org/search.html?VIREO_SESSION_ID=9127c0e786812f2f771137de6667262e&Form=Search&SEARCHBY=Common&KEYWORDS=cassin%27s+kingbird&showwhat=images&AGE=All&SEX=All&ACT=All&Search=Search&VIEW=All&ORIENTATION=All&RESULTS=24 Cassin's Kingbird photo gallery] VIREO [http://vireo.acnatsci.org/species_image.php?species=Tyrannus+vociferans Photo-High Res--(Close-up)]
* [http://coaloilpoint.ucnrs.org/subpage1/COPRAlbumV2B/FieldBirds/DAlbum8/pages/eCassinsKingbird_jpg.htm Photo]
* [http://calphotos.berkeley.edu/imgs/128x192/0000_0000/1106/0458.jpeg Photo] ; [http://calphotos.berkeley.edu/cgi/img_query?stat=BROWSE&query_src=photos_fauna_com-Bird&where-lifeform=Bird&where-namesoup=Cassin's+Kingbird&rel-namesoup=matchphrase Article] CalPhotos-(Photo Gallery)


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  • Cassin's kingbird — noun a kingbird seen in the southwestern United States; largely grey with a yellow abdomen • Syn: ↑Tyrannus vociferans • Hypernyms: ↑kingbird, ↑Tyrannus tyrannus * * * noun Usage: usually capitalized C : a kingbird ( …   Useful english dictionary

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