Geographical variation in egg mass and egg content in a passerine bird.

by Suvi Ruuskanen, Heli Siitari, Tapio Eeva, Eugen Belskii, Antero Järvinen, Anvar Kerimov, Indrikis Krams, Juan Moreno, Chiara Morosinotto, Raivo Mänd, Erich Möstl, Markku Orell, Anna Qvarnström, Juha-Pekka Salminen, Fred Slater, Vallo Tilgar, Marcel E Visser, Wolfgang Winkel, Herwig Zang, Toni Laaksonen
Published 2011-01-01