Field signs. Bird the size of a thrush. In-flight recalls swallow, but the tail cut is not so much. The silhouette recalls tern (Sauer, 1998). Wing bottom kashtanovo-ryzhee. Voice - treskuchee chirr (Böhme et al, 1998). Distribution. In Central Siberia known only distant zalet in southern Tuva, produced a copy is stored in a collection zoomuzeya Krasnoyarsk University. References. |