rorýs Hórův Apus horus

A dark, sturdy swift with a shallowly forked tail and a broad, white rump patch. It prefers to breed in colonies of other hole-nesting species (e.g, bee-eaters, kingfishers, martins and starlings) and forages widely over adjacent terrain. A thin quavering “prrreeeoooo” call, often given near nests, is distinctive. The similar Little Swift differs from Horus Swift by being slightly smaller and having a square tail; the larger White-rumped Swift is more slender, has a deeply-forked tail, and has narrow white “U” on the rump.