| Titre : | Evaluation of disturbance effect on geese caused by an approaching unmanned aerial vehicle (2020) |
| Auteurs : | Mads Bech-Hansen, Auteur ; Rune M. Kallehauge, Auteur ; Jannik M. S. Lauritzen, Auteur ; Mathias H. Sørensen, Auteur ; Bjarke Laubek, Auteur ; Lasse F. Jensen, Auteur ; Cino Pertoldi, Auteur ; Dan Bruhn, Auteur |
| Type de document : | Article |
| Dans : | Bird Conservation International (30(2) June, 2020) |
| Article en page(s) : | 169-175 |
| Langues: | Anglais |
| Mots-clés : | Anseriformes ; Dérangement ; Dégât avion |
| Résumé : | Unmanned aerial vehicles (UAVs) are useful tools in ornithological studies. Importantly, though, UAV-caused disturbance has been noted to vary among species. This study evaluated guidelines for UAVs as a tool for researching geese. Twenty-four flocks of foraging geese were approached at an altitude of 50–100 m with a quadcopter UAV and disturbance effects were analysed across different horizontal distances between the UAV and the flocks. Geese were increasingly disturbed when approached by a UAV, with birds showing increased vigilance behaviour within approximately 300 m. Increasing UAV flight altitude as well as increasing take-off distance from the flocks both decreased the risk of bird flocks flushing. In conclusion, when monitoring geese using UAVs, flight altitudes of 100 m and take-off distances of ideally ∼500 m are recommended, to minimise initial disturbance and reducing the risk of birds flushing. |
| En ligne : | https://www.cambridge.org/core/journals/bird-conservation-international/article/evaluation-of-disturbance-effect-on-geese-caused-by-an-approaching-unmanned-aerial-vehicle/4A17F4A9B1CAE94572B3BAD285D9DCC8 |



