La Tour du Valat

Article

Time budgets of Torrent Ducks (Merganetta armata) in the Central Andes of Colombia in relation to precipitation and food availability

William Cardona, Auteur ; Gustavo H. Kattan, Auteur

Dans Wilson Journal of Ornithology (The) (130(4) December, 2018)

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Article

Flocking Behavior of Shiny Cowbirds (Molothrus bonariensis) At Feeding Areas During the Daily Cycle

Gustavo H. Kattan, Auteur ; Anamaría Posada, Auteur ; Diego Fernando Arenas, Auteur ; José Luis Moreno, Auteur ; Ángela Barrera, Auteur

Dans Wilson Journal of Ornithology (The) (128(2) June, 2016)

ABSTRACT The social systems and space use of birds depend on the distribution and abundance of resources. Brood-parasitic cowbirds (Molothrus spp.) exhibit a unique pattern of changing social behavior on a daily cycle. Female Brown-headed Cowbir[...]

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Article

Distribution and population density of the Endangered Cauca Guan Penelope perspicax

Gustavo H. Kattan, Auteur ; Adriana Leon, Auteur ; German Corredor, Auteur ; William Beltran, Auteur ; Monica Parada, Auteur

Dans Bird Conservation International (16(4) DEC 2006)

The original 24,900 km(2) distribution of the Cauca Guan Penelope perspicax is currently reduced to less than 750 km(2). In addition, forest within this range is fragmented and populations are isolated. We conducted surveys to determine the pres[...]

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