Bird of the Week – Bank Swallow
Yep, another swallow. This one more correctly named, because uniquely among Alaska swallows, it excavates a nesting cavity in a dirt bank. The Bank Swallow’s scientific name – Riparia riparia – neatly describes its preference for nesting in the lakeside and streamside (riparian) banks and bluffs of lakes, rivers and streams. This is a highly social land-bird with a Holarctic (Eastern and Western Hemispheres) breeding distribution. It nests in colonies ranging from 10 to almost 2,000 active nests. One of only a few passerines with an almost cosmopolitan distribution, it is one of the most widely distributed swallows in the world. In the Old World,…