| Titre : | The autumn migration of the Black Stork (Ciconia nigra) through the Pyrenees |
| Auteurs : | Jean-Paul Urcun, Auteur |
| Type de document : | Article |
| Dans : | Aves (40(1-4) 2003) |
| Article en page(s) : | 140-154 |
| Résumé : | Since 1979, Organbidexka Col Libre has been conducting a study in the Pyrenees. Black Storks migrate between mid-august and mid-October, and cross the Pyrenees essentially via the extremities of the chain. Birds travel during the hottest hours of daytime and are generally little gregarious. Seasonal distribution of age-ratio is also studied. Concerning demographic trends, the number of transpyrenean Black Storks has strongly increased since 1981. |



