page_title: Cassin's kingbird
section_title: Similar species
hierarchical_section_title: Cassin's kingbird / Description / Similar species
caption_attribution_description: English: Comparison of Tyrannus vociferans - Cassin's kingbird (on the left) and Tyrannus verticalis - western kingbird (on the right) Identification:National Geographic Birds of North America, 4th edition, page 299 The thin white edge at the tip of the tail feathers is visible on the Cassin's kingbird on the left and the thin white edge on the side of the tail feathers of the western kingbird is visible on the right.
context_page_description: Cassin's kingbird is a large tyrant flycatcher native to western North America. The name of this bird commemorates the American ornithologist John Cassin.
context_section_description: Cassin's kingbird and the western kingbird are similar in appearance. Cassin's is a little larger than the western and the upper parts are a darker gray than the western. The most distinctive difference between the birds is that the Cassin's has a thin white strip along lower edge of the tail feathers and the western has a thin white strip that runs along the edge of the tail feathers. This difference can be seen in the adjacent image.
caption: Comparison of a Cassin's (on the left) and western kingbird
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