INVESTIGADORES
OJEDA Valeria Susana
artículos
Título:
Provisioning of Magellanic Woodpecker (Campephilus magellanicus) nestlings with Vertebrate prey
Autor/es:
OJEDA, V Y M. L. CHAZARRETA
Revista:
WILSON BULLETIN
Editorial:
Wilson Ornithological Society
Referencias:
Año: 2006 vol. 118 p. 251 - 254
ISSN:
0043-5643
Resumen:
During the 20032004 and 2004
2005 nesting seasons, we studied parental behavior at
seven Magellanic Woodpecker (Campephilus magellanicus)
nests in Argentine Patagonia. Food items delivered
to nestlings included wood-boring larvae
(57.6%), arachnids (13.1%), and vertebrates (4.6%, including
a bat, lizards, and avian eggs and nestlings).
Less frequent items were adult insects, caterpillars, and
pupae. Small, unidentified invertebrate prey made up
19.8% of the observations. Males delivered most of
the large prey (wood-boring larvae and vertebrates;
61.7%), while females brought most of the small prey
(arachnids and small, unidentified invertebrates;
79.6%), suggesting differences in foraging strategies
between sexes. This is the first published account of
Magellanic Woodpeckers provisioning nestlings with
vertebrates. The frequency of Magellanic Woodpecker
predation on vertebrates outside of the breeding seasons
is unknownCampephilus magellanicus)
nests in Argentine Patagonia. Food items delivered
to nestlings included wood-boring larvae
(57.6%), arachnids (13.1%), and vertebrates (4.6%, including
a bat, lizards, and avian eggs and nestlings).
Less frequent items were adult insects, caterpillars, and
pupae. Small, unidentified invertebrate prey made up
19.8% of the observations. Males delivered most of
the large prey (wood-boring larvae and vertebrates;
61.7%), while females brought most of the small prey
(arachnids and small, unidentified invertebrates;
79.6%), suggesting differences in foraging strategies
between sexes. This is the first published account of
Magellanic Woodpeckers provisioning nestlings with
vertebrates. The frequency of Magellanic Woodpecker
predation on vertebrates outside of the breeding seasons
is unknown