他喜欢与孩子们分享他对鸟类的热爱。He delighted in sharing his love of birds with children.筑巢是鸟类的本能.The nesting instinct is proper to birds.他是最先使用高速闪光灯拍摄鸟类的人之一。He was one of the first people to use high speed flash in bird photography....

“鸟类的”的英语可以翻译为：avian ...