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・ Common wood sorrel
・ Common wood-nymph
・ Common woodshrike
・ Common Worship
・ Common yabby
・ Common year
・ Common Year (Greyhawk)
・ Common year starting on Friday
・ Common year starting on Monday
・ Common year starting on Saturday
・ Common year starting on Sunday
・ Common year starting on Thursday
・ Common year starting on Tuesday
・ Common year starting on Wednesday
・ Common yellow-toothed cavy
Common yellowthroat
・ Common zingel
・ Common-channel signaling
・ Common-interest development
・ Common-ion effect
・ Common-law marriage
・ Common-law marriage in the United States
・ Common-law relationship
・ Common-law relationships in Manitoba
・ Common-method variance
・ Common-mode interference
・ Common-mode rejection ratio
・ Common-mode signal
・ Common-network interface ring
・ Common-pool resource


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Common yellowthroat : ウィキペディア英語版
Common yellowthroat

The common yellowthroat (''Geothlypis trichas'') is a New World warbler. They are abundant breeders in North America, ranging from southern Canada to central Mexico.
==Description==
Common yellowthroats are small songbirds that have olive backs, wings and tails, yellow throats and chests, and white bellies. Adult males have black face masks which stretch from the sides of the neck across the eyes and forehead, which are bordered above with white or gray. Females are similar in appearance, but have paler underparts and lack the black mask. Immature birds are similar in appearance to the adult female. First-year males have a faint black mask which darkens completely by spring.
There are 13 races of this bird. These races differ mainly in the males' facial patterns and the brightness of the yellow underparts. The southwestern forms of this bird are the brightest and the yellowest below.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Common yellowthroat」の詳細全文を読む



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