new and noteworthy bird records from the east slope of the andes of colombia
Abstract
We present significant new information on the distribution and status of 138 species
of birds from the Andean East Slope of Colombia, based upon fieldwork between
1990 and 2000 at 28 sites from central Dpto. Boyacá south to the Ecuador border.
The first Colombian specimens of two species (Campylopterus villaviscensio, Napo
Sabrewing; Myrmotherula spodionota, Foothill Antwren) are reported. Three other
taxa (Ocreatus underwoodii addae, Piculus leucolaemus leucolaemus and
Myiophobus p. phoenicomitra), the first two sometimes considered species distinct
from known Colombian forms, represent first reports from Colombia based upon
sightings or photographs; we add several more sightings of two species (Pipreola
chlorolepidota, Iridisornis analis) previously known from single sight records. In
all, we report 35 species from the Andean East Slope of Colombia for the first time,
southward range extensions on this slope for 47 species, northward extensions for
21, upward or downward altitudinal extensions for 19, filling in of major discontinuities
in distribution for 22; for ten of the latter, known from very few reports, new information
indicates a continuous distribution and far greater abundance than previously
supposed. Range extensions and previously undiscovered populations of several
restricted-range, Vulnerable, Near-threatened and Threatened species help to
emphasize the importance of implementing conservation measures in the face of the increasing colonization pressures and insecurity. Based on our observations, we
present several recommendations for setting conservation priorities in this rich but
still relatively poorly known region.
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225343
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