Birdumn.伯德姆(在澳大利亚；东经 133º12' 南纬 15º38')birdn.鸟；禽bird-headed dwarf of Seckel鸟头侏儒, Seckel鸟头侏儒birds with colourful markings有艳丽斑纹的鸟bird alighted on the branch.一只鸟飞下落在树枝上。birds migrating from the north从北方迁徙来的鸟Birds and __fish lay___eggs.鸟下蛋，鱼产卵。Bird learns fly by instinct.鸟儿学飞是出于本能。Birds perched on the branch.鸟停在树枝上。Birds inhabit on the island.只有鸟儿住在这个岛上。Bird watching on CUHK campus.校园观鸟活动。Birds of feather flock together鸟毛聚集在一起啊