birder猎鸟者；（在野外栖息地）观察和研究鸟类的人birdn.鸟；禽Bird - striking鸟撞birds in the hand已到手的东西, 已成定局的事情birdpecking pulse雀啄脉bird of migration候鸟bird in the bosom内心的誓言,忠心,良心bird pest control鸟类害虫控制birds-eye maple鸟眼纹枫木Bird's nest fungus亲β细胞的birds' nest lesionβ-粒Bird-Loving Week爱鸟周