Bird life in Matsalu Bay : a contribution to the third International Meeting on Wildfowl Conservation, Leningrad, September 1968
1968
Birds
Birds of the Baltic region : proceedings of the fourth Baltic Ornitological Conference
1968
Spuris, Z. D. |
Reproduction of the White-Tailed Sea Eagle, Haliaeetus albicilla (L.) in Sweden, in relation to food and residue levels of organochlorine and mercury compounds in the eggs
1983
Helander, Björn |
Arctic summer : birds in North Norway
1979
Vaughan, Richard |
Nagra Svenska Faglar
1947
Curry-Lindahl, Kai |
On the biology of the Spanish Imperial Eagle (Aquila heliaca adalberti)
1975
Meyburg, B.-U. |
La avifauna del delta del Ebro en primavera-verano
1971
Maluquer, S. |
Birds of Africa
1966
Williams, John Trevor |
Oiseaux : panorama des vingt-sept ordres et cent cinquante-cinq familles du monde avien
1962
Austin, Oliver Luther |
Berlioz, Jacques |