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- Title
FOOD HABITS OF LONG-EARED OWLS (ASIO OTUS) AT A WINTER COMMUNAL ROOST IN TEXAS.
- Authors
NOLAND, REAGAN L.; MAXWELL, TERRY C.; DOWLER, ROBERT C.
- Abstract
We analyzed mammalian prey from owl pellets recovered at a winter roost of long-eared owls (Asio otus) in northwestern Irion County, Texas. Of 1,232 prey identified, the most common species were cotton rats (Sigmodon hispidus, 36%), plains harvest mice (Reithrodontomys montanus, 23%), deer mice (unidentified Peromyscus, 14%), and pygmy mice (Baiomys taylori, 10%). Approximately 80% of the biomass of the diet was the cotton rat. Other important prey were Crawford's gray shrews (Notiosorex crawfordi, 7%), hispid pocket mice (Chaetodipus hispidus, 6%), and Merriam's pocket mice (Perognathus merriami, 2%). These species are rare in the reported diet of long-eared owls and represent the first information on winter food habits in Texas in the southern portion of the range of this owl.
- Subjects
TEXAS; FOOD habits; LONG-eared owl; BIRD pellets; ANIMAL species; COTTON rats; REITHRODONTOMYS; BIOMASS
- Publication
Southwestern Naturalist, 2013, Vol 58, Issue 2, p245
- ISSN
0038-4909
- Publication type
Article
- DOI
10.1894/0038-4909-58.2.245