La Tour du Valat

Ouvrage

Threatened birds of the Americas. The ICBP/IUCN red data book. Part 2

N.J. Collar ; L.P. Gonzaga ; N. Krabbe ; et al. | [S.l.] : ICBP Cambridge | 1992

ICBP Cambridge (GBR) 3°ed 1150p

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Ouvrage

Birds of the high Andes

J. Fjeldsa ; N. Krabbe | [S.l.] : Zoological Museum University of Copenhagen | 1990

Zoological Museum University of Copenhagen (DNK) 880p 64pl coul *cartes distribution dessins

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Article

Pale-headed Brush-finch Atlapetes pallidiceps: notes on population size, habitat, vocalizations, feeding, interference competition and conservation

N. Krabbe, Auteur

Dans Bird Conservation International (14(2) JUN 2004)

Pale-headed Brush-finch Atlapetes pallidiceps is on the verge of extinction, with fewer than 100 individuals surviving in an area of less than 4 km(2) in the Yunguilla valley in the province of Azuay, southern Ecuador. A reserve created for the [...]

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