Geographic Variation in Secondary Sexual Plumage Colour Characteristics of the Male Pied Flycatcher

Autor:	Røskaft, E., Järvi, T., Nyholm, N. E. I., Virolainen, M., Winkel, W., Zang, H.
Zdroj:	Ornis Scandinavica (Scandinavian Journal of Ornithology), 1986 Dec 01. 17(4), 293-298.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/3676816 Zobrazit plný text záznamu