Avifauna of the Cerro de la Muerte region, Costa Rica. American Museum novitates ; no. 2606

Supplemental Materials
Journal Title
Journal ISSN
Volume Title
New York, N.Y. : American Museum of Natural History
"Records are summarized of the birds occurring above 2900 meters in the vicinity of Villa Mills, Costa Rica, at the northern end of the Talamanca Cordillera of Costa Rica and western Panama. Most of the records are from the period of 1965-1967; a few are from 1968-1969. Passerines are disproportionally represented among the resident or breeding avifauna, and nonpasserines are more represented among the transients, including migrants passing throuh the region to and from the North Temperate zone. Levels of endemism of breeding species are investigated in relation to source areas and lower altitudinal limits of distribution of each species. The area supports a high level of endemism, and can be analogized to an island in that most of the resident species must cross uninhabitable lowland areas as they move between the Talamancas and surrounding highland areas that reach above 2000 meters and provide suitable habitat. Food habits, foraging zones, breeding, and molting seasons are discussed where data are available. In general, most of the species are insectivorous or frugivorous, breeding is mostly from March through June, and molting occurs shortly after breeding. The nectarivores depart from this pattern, breeding principally in August through February when flowers are abundant"--P. [1].
37 p. : ill., map ; 26 cm.
Includes bibliographical references (p. 36-37).