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Time-lapse video sysem used to study nesting Gyrfalcons

January 1, 2003

We used solar-powered time-lapse video photography to document nesting Gyrfalcon (Falco rusticolus) food habits in central West Greenland from May to July in 2000 and 2001. We collected 2677.25 h of videotape from three nests, representing 94, 87, and 49% of the nestling period at each nest. The video recorded 921 deliveries of 832 prey items. We placed 95% of the items into prey categories. The image quality was good but did not reveal enough detail to identify most passerines to species. We found no evidence that Gyrfalcons were negatively affected by the video system after the initial camera set-up. The video system experienced some mechanical problems but proved reliable. The system likely can be used to effectively document the food habits and nesting behavior of other birds, especially those delivering large prey to a nest or other frequently used site.

Citation Information

Publication Year 2003
Title Time-lapse video sysem used to study nesting Gyrfalcons
DOI 10.1648/0273-8570-74.4.416
Authors Travis Booms, Mark R. Fuller
Publication Type Article
Publication Subtype Journal Article
Series Title Journal of Field Ornithology
Index ID 1016268
Record Source USGS Publications Warehouse
USGS Organization Forest and Rangeland Ecosystem Science Center