Black Saw-wing
Psalidoprocne pristoptera
分类位置
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形态与习性
The black saw-wing (Psalidoprocne pristoptera), also known as the blue saw-wing or black rough-winged swallow, is a small passerine bird in the swallow family.
体重
2 g
Psalidoprocne pristoptera
The black saw-wing (Psalidoprocne pristoptera), also known as the blue saw-wing or black rough-winged swallow, is a small passerine bird in the swallow family.
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