Winter Movements by Rosy Finches in Montana (Movimientos Durante el Invierno de Leucosticte arctoa en Montana)

Publication Type:Journal Article
Year of Publication:1988
Authors:Swenson, JE, Jensen, KC, Toepfer, JE
Journal:Journal of Field Ornithology
Volume:59
Issue:2
Date Published:1988
ISBN Number:02738570
Keywords:Fringillidae, Leucosticte, Leucosticte arctoa
Abstract:During the winter of 1985-1986 Rosy Finches (Leucosticte arctoa) were trapped and banded at two sites, 40 km apart, in southwestern Montana. We documented between-site movement by seven finches, representing two color phases, both sexes, and movement in both directions. Wintering Rosy Finches feed on seeds, a patchy and ephemeral food source. They may move within a large area during winter to locate alternate food sources. /// Durante el invierno del 1985-1986 se anillaron especimenes de Leucosticte arctoa en dos localidades del suroeste de Montana distanciadas por 40 km. Aves (un total de siete) de ambos sexos y de dos fases de coloración se movieron en ambas direcciones entre las localidades. Las aves se alimentaron de semillas; fuente de alimento efímera y localizada en parchos. Se especula que durante el invierno, los pajaros se muevan dentro de un área de considerable tamaño tratando de localizar fuentes alternas de alimentos.
URL:http://www.jstor.org/stable/4513316
Short Title:Journal of Field Ornithology
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