• Bank swallow is a migratory bird, and its migration occurs independently of the breeding area. In the central part of Russia, the first swallows arrive in the first half of May, and the main population arrives in the second half.

European sand martins are distributed across the Afrotropical realm, the Nearctic realm, and the Palearctic realm. The species inhabits Celtic broadleaf forests, broadleaf forests of Western Europe, coniferous forests of the Qilian Mountains, low-lying forests of the Eastern Great Lakes, Balkan mixed forests, and Baltic mixed forests.