鸟类分目检索表_鸟类检索表

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中国鸟类分目检索表 1 蹼发达,脚适应于游泳 ··································· 2 ··········· ·········· ··········· ··· ·········· ··········· ··········· ··· 蹼不发达或缺,脚适于步行 ································· ··········· ·········· ··········· 7 ·········· ··········· ··········· 2 鼻呈角质管状 ····································鹱形目 ··········· ·········· ··········· ···· ·········· ··········· ··········· ··· 鼻不呈角质管状 ······································ ··········· ·········· ··········· ····· 3 ·········· ··········· ··········· ····· 3 趾间具全蹼(全蹼足)································ 鹈形目 ··········· ·········· ··········· ·········· ··········· ··········· 趾间不具全蹼 ······································· 4 ··········· ·········· ··········· ······· ·········· ··········· ··········· ······· 4 嘴通常平扁,先端具嘴甲;雄性具交接器 ······················· ······················ 雁形目 ·········· ··········· · 嘴不平扁或不具嘴甲,雄性不具交接器 ·························· 5 ··········· ·········· ····· ·········· ··········· ····· 5 翅尖长;尾羽正常发达 ································鸥形目 ··········· ·········· ··········· ·········· ··········· ·········· 翅短,或尖或园;尾羽甚短 ·································6 ··········· ·········· ··········· · ·········· ··········· ··········· 6 向前的三趾间具蹼·································· ································· 潜鸟目 ·········· ··········· ··········· · 向前的三趾各具瓣蹼 ································ 鸊鷉目 ··········· ·········· ··········· ·········· ··········· ··········· 7 颈和脚均较长;胫下部裸出;蹼不发达 ························