Birds to watch 2 : the world list of threatened birds
1994
Collar, N. J. |
Crosby, M. J. |
Stattersfield, A. J. |
BirdLife Conservation Series
Birds in Europe : population estimates, trends and conservation status
2004
Burfield, Ian |
Bommel, Frans van |
Important bird areas in Africa and associated islands : priority sites for conservation
2001
Fishpool, Lincoln D. C. |
Evans, M. I. |
European bird populations : estimates and trends
2000
Heath, Melanie F. |
Borggreve, Carolien |
Peet, Nicholas |
Important bird areas in Europe : priority sites for conservation
2000
Heath, Melanie F. |
Evans, M. I. |
Habitats for birds in Europe : a conservation strategy for the wider environment
1997
Tucker, Graham M. |
Evans, M. I. |
Endemic bird areas of the world : priorities for biodiversity conservation
1998
Stattersfield, A. J. |
Crosby, Michael J. |
Long, Adrian J. |
Wege, David C. |
Rayner, Andrew P. |
Seabirds on islands : threats, case studies and action plans
1994
Nettleship, David N. (D. N.) |
Burger, Joanna |
Gochfeld, M. |
Key areas for threatened birds in the neotropics
1995
Wege, David C. |
Long, Adrian J. |
Important bird areas in the Middle East
1994
Evans, M. I. |