| Titre : | Ornithologische Beobachter (Der) 120(1) - March, 2023 |
| Type de document : | Bulletin |
| Paru le : | 01/03/2023 |
Dépouillements
Article
Based on data from four atlas projects and the Swiss Bird Index®, the changes in the distribution and population of breeding birds in Switzerland are summarised for all breeding bird species. For the three and seven decades (1990-2020 and 1950-2[...]
