| Publication Type: | Journal Article |
| Year of Publication: | 2007 |
| Authors: | O., SAlvarado, R., RAFiguero, Shehadeh, I, E. S., SCorales |
| Journal: | The Wilson Journal of Ornithology |
| Volume: | 119 |
| Issue: | 3 |
| Date Published: | 2007 |
| ISBN Number: | 15594491 |
| Keywords: | Chile, Ciccaba, Ciccaba rufipes, Strigidae, Strix, Strix rufipes |
| Abstract: | We quantified the diet of the Rufouslegged Owl (Strix rufipes) by analysing 63 pellets collected during 2003 and 2005 in a small coastal sclerophyllous forest stand at the northern limit of its distribution in Chile (31-32° S). The diet comprised small mammals (frequency = 57.8%, biomass = 99.3%), crustaceans (frequency = 1.7%, biomass = 0.1%), and insects (frequency = 40.5%, biomass = 0.6%). We identified at least 10 small mammal species in these pellets of which Bennett's chinchilla rat (Abrocoma bennetti; frequency = 12.4%) and long-tailed pygmy rice rat (Oligoryzomys longicaudatus; frequency = 7.4%) were the most frequently occurring mammalian prey remains. Terrestrial small mammals accounted for 21.5% by frequency of all individuals and 49.1% of the total biomass; scansorial/arboreal small mammals accounted for only 13.2% of all individual prey and 17.2% of total biomass. |
| URL: | http://www.jstor.org/stable/20456036 |
| Short Title: | The Wilson Journal of Ornithology |
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