Southern Extension to the Breeding Range of the Gyrfalcon, Falco rusticolus, in Eastern North America
نویسندگان
چکیده
We report the observation of four gyrfalcon (Falco rusticolus) nests and several adults south of the previously recognized southern limit of the species’ breeding distribution in eastern North America. Our southernmost observation extends the known breeding range approximately 400 km to the south. The northern forest tundra biome could delineate the southern limit to the breeding range of the gyrfalcon.
منابع مشابه
Use of Large-scale, Multi-species Surveys to Monitor Gyrfalcon and Ptarmigan Populations
—We evaluated the ability of three large-scale, multi-species surveys in the Arctic to provide information on abundance and habitat relationships of Gyrfalcons (Falco rusticolus) and ptarmigan. The Program for Regional and International Shorebird Monitoring (PRISM) has surveyed birds widely across the arctic regions of Canada and Alaska since 2001. The Arctic Coastal Plain survey has collected ...
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