Differences on the wing-formula of Eyebrowed Thrush, Brown-headed Thrush, Pale Thrush and Izu Thrush
Bibliographic Information
- Other Title
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- マミチャジナイ，シロハラ，アカハラ，アカコッコの翼式の差異
- マミチャジナイ,シロハラ,アカハラ,アカコッコ ノ ヨクシキ ノ サイ
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Description
<p>Components of wing-formula; the longest primary (s), the order of the p9, feather gaps on primaries and emarginations of outer webs of primaries were compared between the Eyebrowed Thrush (n=29), the Pale Thrush (n=39), the Brown Thrush(n=79) and the Izu Thrush (n=16). All the components were significantly different between four species, and species with longer migration had more pointed wings. Wing-formula was effective in the identification of the four species because the appearance of gaps on the primary was divided into two groups; Eyebrowed/Izu and Pale/Brown-headed, the gap of the Izu Thrush was composed different primaries from the others and emarginations might exist more proximal, and emarginations of the Eyebrowed Thrush existed more distal.</p>
Journal
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- The Bulletin of the Japanese Bird Banding Association
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The Bulletin of the Japanese Bird Banding Association 32 (1_2), 21-35, 2020-12-31
The Japanese Bird Banding Association
