| Titre : | Raptor population decline in West Africa (2007) |
| Auteurs : | Jean-Marc Thiollay, Auteur |
| Type de document : | Article |
| Dans : | Ostrich (78(2) June, 2007) |
| Article en page(s) : | 405-413 |
| Langues: | Anglais |
| Résumé : | The roadside counts conducted in 1969-1973 through Burkina Faso, Mali, Niger and northern Cameroon (9 712km) were repeated in 2000-2004 by the same observer, using the same methods, during the same season. Overall, |



