| 释义 | 
		Definition of bastard wing in English: bastard wingnoun A group of small quill feathers on the first digit of a bird's wing.  Example sentencesExamples -  The bastard wing of birds is a rudimentary digit; and I believe that if fossil birds are found very low down in the series, they will be seen to have a double or bifurcated wing.
 -  About the size of a goldfinch, the bird sports a tuft of feathers technically known as an alula, or bastard wing, that would have helped it stay aloft at slow speeds.
 -  The alula feather, also called the bastard wing, can be seen at the top center of the photo.
 -  Both young green and night herons elevate the bastard wing at times as they climb about the trees, but I have never seen them attempt to use it for grasping.
 -  At the same time, he made an anatomical study of bird wings, demonstrating that the bastard wing acts as a brake.
 
    Definition of bastard wing in US English: bastard wingnoun A group of small quill feathers on the first digit of a bird's wing.  Example sentencesExamples -  The alula feather, also called the bastard wing, can be seen at the top center of the photo.
 -  At the same time, he made an anatomical study of bird wings, demonstrating that the bastard wing acts as a brake.
 -  The bastard wing of birds is a rudimentary digit; and I believe that if fossil birds are found very low down in the series, they will be seen to have a double or bifurcated wing.
 -  Both young green and night herons elevate the bastard wing at times as they climb about the trees, but I have never seen them attempt to use it for grasping.
 -  About the size of a goldfinch, the bird sports a tuft of feathers technically known as an alula, or bastard wing, that would have helped it stay aloft at slow speeds.
 
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