Southern Extension to the Breeding Range of the Gyrfalcon, Falco rusticolus, in Eastern North America

ABSTRACT. 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 t...

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Bibliographic Details
Main Authors: S. Brodeur, F. Morneau, R. Décarie, J. -l. Desgranges, J. Negro
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 1994
Subjects:
Découverte
Hudson
Hudson Bay
Arctic
Falco rusticolus
gyrfalcon
toundra
Tundra
faucon gerfaut
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.549.4912
http://pubs.aina.ucalgary.ca/arctic/Arctic48-1-94.pdf
Description
Summary:ABSTRACT. 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. Key words: gyrfalcon, Falco rusticolus, nesting, distribution, Hudson Bay, Quebec. RÉSUMÉ. Nous rapportons la découverte de quatre nids de faucon gerfaut et la mention de quelques adultes au sud de la limite connue de l’aire de reproduction de l’espèce dans l’est de l’Amérique du Nord. Notre observation la plus méridionale étend l’aire de répartition quelques 400 km plus au sud. Les limites sud de la toundra forestière septentrionale pourraient coincider avec celle de l’aire de reproduction du faucon gerfaut.

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