| Titre : | New establishment of the White-spotted Bluethroat Luscinia svecica cyanecula in the valley of the Roter Main, Upper Franconia. |
| Auteurs : | Robert Pfeifer, Auteur |
| Type de document : | Article |
| Dans : | Ornithologischer Anzeiger (48(2) OCT 2009) |
| Article en page(s) : | 159-163 |
| Résumé : | In 2009, the occurrence of Bluethroats was studied over an area of 52 sqkm in the valley of the Roter Main (Upper Franconia, Bavaria, Germany). Singing males were found at 21 sites, 17 territories being occupied for a longer time during spring. These sites were concentrated in an area of 5.1 sqkm, the density being 0,33 territories per 10 hectares. Colonisation of the study area started in the mid- 1990s. |



