birdsmouthing

例句：

1. 1.The birds were busy eating from the bird's mouth.
   鸟儿们忙着从鸟嘴里啄食。
2. 2.The baby bird was mouthing at its mother, trying to learn how to feed itself.
   小鸟儿在学着自己喂食，它正对着妈妈的嘴巴啄食。
3. 3. The hawk was waiting patiently for a chance to birdsmouth its prey.
   老鹰耐心地等待着捕食的机会。