黑面琵鷺理羽行為之初探

Abstract

研究人員自1996年11月到1997年3月，在臺南七股地區黑面琪鷺的棲息地進行理羽行為的觀察。結果顯示本種白天多在休息，所佔比例達93.14%。理羽則為各項活動中最高者(3.74%)。其可分為自理(3.62%) 及互理(0.12%)，自理部位概可分為胸、腹、背、頸基、翅膀、頭頸等部，其中以翅膀所佔的比例最高，達39.46%。自理的方式含嘴及腳爪，使用腳爪時，其自理部位多集中於頭頸。互理則以嘴為主，其部位亦皆集中於頭頸，包括額頂、後頭、前頸、頸側、前頸基部等五處。本種白晝理羽行為的變化，在15時後逐漸提高，於17時達到高峰。

From Nov. 1996 to Mar. 1997, the preening behavior of the Black-faced Spoonbill (Platalea minor) was observed at the wintering area in Chigu, Tainan County. During the day the bird was mostly resting (93.14%). However, the preening behavior was the most common one (3.74%) among all other activities. Preening can be classified into self-preening (3.62%) and allo-preening (0.12%). The region of self-preening included the head, neck, wing, breast, abdomen and back of the bird. Among parts preened, the wing was treated most frequently (39.46%). In general the bill was used for preening, but the foot was applied to the neck and head region where the bill could not reach. Allo-preening was also confined to the head and neck region. During the day the preening activity increased after 1500hr with the peak at 1700hr.