Tree swallow babies watching the outside world from their nest, they are common and widespread throughout most of North America, breeding as far north as Alaska and wintering to Panama. A medium-sized swallow, with gleaming white underparts. Adult males are bright iridescent blue-green above; females and immatures are duller brownish with limited or no iridescence. Always note compact shape, fairly broad wings, and slightly notched tail. Occurs in a variety of open habitats including grassy fields, lakes, and marshes. Often in flocks, sometimes mixed with other species of swallows.

圖片編號： 252358710
拍攝者： Fallsview