Expert knowledge assessment of threats and conservation strategies for breeding Hen Harrier and Short-eared Owl across Europe

Agriculture & Biology

• expert opinion 100%
• Strigiformes 88%
• conservation areas 71%
• hens 69%
• breeding 45%
• Asio 41%
• Circus cyaneus 40%
• afforestation 31%
• land use change 30%
• habitat conservation 29%
• habitats 28%
• birds of prey 28%
• habitat destruction 27%
• geographical variation 26%
• questionnaires 22%
• weather 21%
• predation 19%
• nests 19%
• environmental factors 15%
• monitoring 15%
• degradation 15%

Earth & Environmental Sciences

• breeding 74%
• Europe 51%
• protected area 16%
• bird of prey 9%
• prey availability 8%
• habitat management 8%
• agricultural intensification 8%
• habitat 7%
• geographical variation 7%
• ecological factor 7%
• habitat loss 7%
• afforestation 6%
• nest 6%
• predation 5%
• weather 4%
• land use 4%
• need 3%
• monitoring 3%
• distribution 2%