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Kirtland's warbler
Kirtland's warbler (''Setophaga kirtlandii''), also known as the jack pine warbler, is a small songbird of the New World warbler family (Parulidae), named after Jared P. Kirtland, an Ohio doctor and amateur naturalist. Nearly extinct just 50 years ago, it is well on its way to recovery. It requires large areas (> 160 acres) of dense young jack pine for its breeding habitat. This habitat was historically created by wildfire, but today is primarily created through the harvest of mature jack pine, and planting of jack pine seedlings.
Since the mid-19th century at least it has become a restricted-range endemic species. Almost the entire population spends the spring and summer in the northeastern Lower Peninsula of Michigan and winters in The Bahamas.
==Description==
These birds have bluish-brown upper body parts with dark streaks on the back and yellow underparts with streaked flanks. They have thin wing bars, dark legs and a broken white eye ring. Females and juveniles are browner on the back. Like the palm warbler and prairie warbler, they frequently bob their tails. At and , it is the largest of the numerous ''Setophaga'' warblers.〔Tiner, Tim (2013) (Kirtland’s warbler ). ON Nature magazine . Retrieved on 2013-04-03.〕 Their song is a loud ''chip-chip-chip-too-too-weet-weet'' often sung from the top of a snag (dead tree) or northern pin oak (''Quercus ellipsoidalis'') clump.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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