冠
当受到惊吓或兴奋时,红雀可以竖起头上的冠羽,使其对捕食者显得更大。
a visible ring, band, or marking encircling the neck or throat area of an animal
the part of an animal's body corresponding to the human chest
the projecting mouthpart of a bird used for feeding or preening
叉骨
他们许了个愿,然后拉开许愿骨,希望能带来好运。
a pouch in birds and some other animals used to store and soften food before digestion
初级飞羽
受伤的鸟类如果没有完整的初级飞羽,可能会难以飞行。