雀形目，栖离

perching bird───栖鸟类

forcing bids───强制投标

marching bands───游行乐队；仪仗队(marchingband的复数)

marching girls───游行的女孩

beaching berm───滩堤

forcing bid───强制投标

marching band───军乐队；奏进行曲作操练表演的乐队

marching girl───n.行军女队

mockingbirds───n.模仿鸟；嘲鸫属鸣禽；蓝嘲鸫（等于mockingthrush）

The size of the prey's third toe is important because, among birds, long third toes are helpful for grasping branches and perching in trees.───捕食者第三个脚趾的大小是很重要的，因为，对于鸟来说，长长的第三趾可以帮助其抓紧树枝，在树上栖息。

Chats Chats are a small group of slender perching birds once thought to belong to the thrush family.

Manakins Manakins are a family of compact little perching birds with big heads, short tails and stout bills.