Mid-winter numbers of waterbirds in Bulgaria (1977-2001) : results from 25 years of mid-winter counts carried out at the most important Bulgarian wetlands /
The present book for the first time in Bulgaria summarizes results from 25 years of counts in the most important wetlands in the country referring to the Mid-winter numbers of the waterbirds there. This long-term survey is a part of the regular counts of Divers, Grebes, Pelicans, Cormorants, Swans,...
Clasificación: | Libro Electrónico |
---|---|
Autor principal: | |
Otros Autores: | |
Formato: | Electrónico eBook |
Idioma: | Inglés Bulgarian |
Publicado: |
Sofia :
Pensoft,
2003.
|
Temas: | |
Acceso en línea: | Texto completo |