a large African waxbill with a stout metallic-blue bill and red and black plumage 梅花雀
Genus Spermophaga,family Estrildidae: three species 蓝嘴雀属,梅花雀科: 3种
any of a number of ducks with blue bills: 有蓝色喙的鸭子
N. Amer.the scaup duck Austral.the blue-billed duck (Oxyura australis, family Anatidae), a stiff-tailed duck with chestnut plumage 北美潜鸭 澳澳洲硬尾鸭(拉丁名Oxyura australis,鸭科)