Finding birds around the world
1981
Alden, Peter |
Gooders, John |
Birds
Areas important for birds in the Netherlands : wetlands and other areas of international or European importance for birds
1994
van den Tempel, Rita |
Osieck, Eduard R. |
The complete birds of the world
1980
Walters, Michael |
Waterbird population estimates
2002
Delany, Simon |
Scott, Derek A. |
Threatened birds of India
2002
Islam, Zafar-ul |
Rahmani, Asad R. |
The avifauna of Xizang : the comprehensive scientific expedition to Quinghai-Xizang plateau
1983
Zheng, Zuoxin |
Fauna sinica : aves
Zheng, Zuoxin |
Lista de aves de El Salvador (con información sobre sitios para observar aves)
2001
Komar, Oliver |
Domínguez, Juan Pablo |
Matyerialy konfyeryentsii po izucheniyu migratsii ptits i okhrany ptits Baltiyskogo basseyna. [Tallin, s 9 po 13 Oktyabrya 1974 g.]
1974
Kumari, Eerik |
Las aves de los humedales del sur de alicante y su entorno
1999
Ramos Sánchez, Antonio Jacobo |
Sarmiento, Luis Fidel |