Waterbird counts on large water bodies: comparing ground and aerial methods during different ice conditions
The aerial and ground methods of counting birds in a coastal area during different ice conditions were compared. Ice coverage of water was an important factor affecting the results of the two methods. When the water was ice-free, more birds were counted from the ground, whereas during ice conditions...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
PeerJ Inc.
2018-07-01
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| Series: | PeerJ |
| Subjects: | |
| Online Access: | https://peerj.com/articles/5195.pdf |