照片 关于 Close up of the white and black feathers on the head of a blue-footed booby, Sula nebouxii. 图片 包括有 通风, 鸟舍, 识别不明飞机 - 154439850
Although they did not quantify the latter, it is to our knowledge the only published experimental study on the influence of post-natal exposure to androgens on a begging display in a bird species. The possible suppressing effect of testosterone on begging behavior is, however, not supported by ...
However, it is problematic to assume that under the Vistula River conditions, the individual characteristics of a bird have a key impact on the decision to lay a replacement clutch (and determine the frequency of such behaviour in the population). Which and how many gulls will renest is a ...
Blue footed booby couple isolated on black lava rocks on Galapagos,站酷海洛,一站式正版视觉内容平台,站酷旗下品牌.授权内容包含正版商业图片、艺术插画、矢量、视频、音乐素材、字体等,已先后为阿里巴巴、京东、亚马逊、小米、联想、奥美、盛世长城、百度、360、招商银