Abstract
During the summer of 1995, for three days we studied the chick-rearing behaviour of a Striped Woodpecker (Picoides lignarius) pair in the temperate rainforest of southern Chile. The pair nested in a Luma apiculata stump in a riparian forest strip. The female made a higher contribution to the feeding of chicks (78% of all prey deliveries) than the male (22%). This trend was constant during all three days. The female was always successful at feeding nestlings, while the male failed in 57% of their attempts. The mean time interval between prey deliveries was 798 s. The prey delivered were exclusively insects, both larvae and imagoes. The most frequent insect preys given to chicks were beetles, with larvae and imagoes in similar proportion.
References
APABLAZA JU (1994) IntroducciÛn a la entomologÌa gene-ral y agrÌcola. Manual de laboratorio. Ediciones Uni-versidad CatÛlica de Chile, Santiago
ARAYA B Y MILLIE G (1986) GuÌa de campo de las aves deChile. Editorial Universitaria, Santiago
AUSTIN GT (1976) Sexual and seasonal differences inforaging of Ladder-backed Woodpeckers. Condor78:317ñ323
FJELDS≈ J Y KRABBE N (1990) Birds of the high Andes.Apollo Books y Zoological Museum, Svendborg yCopenhagen
HOUSSE R (1945) Las aves de Chile en su clasificaciÛnmoderna: su vida y sus costumbres. Ediciones Univer-sidad de Chile, Santiago
JACKSON JA (1970) A quantitative study of the foragingecology of Downy Woodpeckers. Ecology 51:318ñ323
JOHNSON AW (1967) The birds of Chile and adjacent re-gions of Argentina, Bolivia and Peru. Volume 2. PlattEstablecimientos Gr·ficos, Buenos Aires
KILHAM L (1962) Reproductive behavior of DownyWoodpeckers. Condor 64:126ñ133
KILHAM L (1970) Feeding behavior of Downy Wood-peckers. I. Preferences for paper birches and sexualdifferences. Auk 87:544ñ556
KISIEL DS (1972) Foraging behavior of Dendrocoposvillosus and D. pubescens in eastern New York state.Condor 74:393ñ398
KOCH RF, COURCHESNE AE Y COLLING CT (1970) Sexualdifferences in foraging behavior of White-headedWoodpeckers. Bulletin of the South California Acad-emy of Science 69:60ñ64
LIGON JD (1968) Sexual differences in foraging behav-ior in two species of Dendrocopos woodpeckers. Auk85:203ñ215
NAROSKY T E YZURIETA D (1987) GuÌa para la identifica-ciÛn de las aves de Argentina y Uruguay. AsociaciÛnOrnitolÛgica del Plata, Buenos Aires
SELANDER RK (1966) Sexual dimorphism and differ-ential niche utilization in birds. Condor 68:113ñ151
SHORT LL (1970) Notes on the habits of some Argen-tine and Peruvian Woodpeckers (Aves, Picidae).American Museum Novitates 2413
SHORT LL (1971) Systematics and behavior of someNorth American woodpeckers, genus Picoides(Aves). Bulletin of the American Museum of NaturalHistory 145:1ñ118
SHORT LL (1982) Woodpeckers of the world. DelawareMuseum of Natural History, Greenville
VUILLEUMIER F (1985) Forest birds of Patagonia:ecological geography, speciation, endemism,and faunal history. Ornithological Monographs36:255ñ304
WALLACE RA (1974) Ecological and social implicationsof sexual dimorphism in five melanerpine wood-peckers. Condor 76:238ñ248
WILLSON MF (1970) Foraging behavior of some win-ter birds of deciduous woods. Condor 72:169ñ174
YOM-TOV Y Y AR A (1993) Incubation and fledgingdurations of woodpeckers. Condor 95:283ñ287

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