蓝知更鸟身长14厘米,翼展20-22厘米,体重16-22克,寿命15年。这种小鸣禽很容易识别,它自脸部到胸部都是蓝色,与下腹部的白色形成明显的对比。翅膀和尾巴的上半部是棕绿橄榄色。锥形的鸟喙,喙基暗棕色。黑眼睛,细巧的腿和爪浅棕色。性好战,因胸前鲜艳的羽毛最初被称作redbreast(红襟鸟)。
不久前,他发现蓝知更鸟在枯树上筑巢,而这些枯树往往会被人们砍去,于是他开始为这些鸟制作蓝知更鸟箱,以拯救它们。
Not long ago, he found that the bluebirds were nesting in the dead trees which were often cut down, so he began to make bluebird boxes for the birds in order to save them.
但有时蓝知更鸟找不到这种鸟巢。
山地蓝知更鸟和大角猫头鹰生活在峡谷边缘地区。
Mountain bluebirds and great horned owls live in the rim area.
应用推荐