鹮科(Threskiornithidae)鸟类都是较为稀少珍贵的鸟。头部和颈部通常裸露。嘴强壮而钝,并向下曲,嘴峰两侧各有一长形鼻沟,鼻孔位于其基部。在繁殖季节内侧次级飞羽长于初级飞羽,并形成散羽状。尾长度适中,有12枚尾羽。胫部仅在上半部被羽,跗蹠具网状鳞:趾长,在趾基部彼此之间有蹼相联,此蹼并延伸到各趾两旁。它们多半生活在沼泽地、 Threskiornithidae birds are rarer and rare birds. The head and neck are usually bare. Mouth strong and dull, and downward song, mouth peaks on both sides have an elongated nasogastric, nostrils in its base. In the breeding season, the secondary fly is longer than the primary fly and forms a scattered plume. Tail length is moderate, there are 12 tail feathers. The tibia is feathered only in the upper half, the tarsal mesophyll scales: toe-long, with webbed interconnections at the base of the toe that extend to the sides of the toes. Most of them live in wetlands,