The young of most bird species are totally dependence on parental care after hatching.

A certain species of bird has two basic varieties, crested and noncrested. The birds, whic

The most aggressive of the four eastern－slope species is the lodgepole chipmunk, a feisty

College is the most important period for the growth of young adults. It is time for colleg

Which country was most seriously affected by the virus of H5N1 bird flu in the world？A．Ind

Kingsley Amis______is one of the most influential novels of the "Angry Young Men".A．Lucky

The word bird once referred to "young bird", but now it is used to mean "any kind of bird"