Griffon Vulture Gyps fulvus Food Shortages in the Ebro Valley (Ne Spain) Caused by Regulations Against Bovine Spongiform Encephalopathy (BSE)
Alvaro Camiña, et al. (2006)
The Breeding Ecology of the Greenfinch Carduelis chloris in Urban Conditions (Study in Krotoszyn, W Poland)
Ziemowit Kosiński, et al. (2001)
Effect of Old Nest Material on Nest Site Selection and Breeding Parameters in Secondary Hole Nesters — a Review
Tomasz D. Mazgajski, et al. (2007)
Effects of Protocalliphora Parasites on Nestling Food Composition in Corsican Blue Tits Parus caeruleus: Consequences for Nestling Performance
Jerzy Bańbura, et al. (2004)
Conservation of Farmland Birds Faces Different Challenges in Western and Central-Eastern Europe
Piotr Tryjanowski, et al. (2011)
