共9个字母组成,第一个字母是p,第三个是s,第六个是i,最后一个是e,意思是“ a perching bird
1个回答
Passerine.
An order of small to medium-sized birds which have widely varied plumage and shape.The bill is modified for a range of feeding habits.The feet have three toes pointing forward and one backward which assists perching.Nests can be simple or elaborate.Young are usually naked at hatching.Passerines can be terrestrial,aerial,or arboreal.The order is divided into 82 families,and contains more than 5000 species,60% of the class.They are found world-wide.
