Filters: Tags: migratory bird (X)
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The band-tailed pigeon (Patagioenas fasciata) is distributed in 2 distinct regions of western North America. The Pacific Coast band-tailed pigeon (P. f. monilis) occurs from British Columbia south to Baja California in the mountains and foothills primarily west of the crest of the Cascade-Sierra Nevada Mountains. Band-tailed pigeons on the Pacific Coast regularly visit and congregate at mineral sites where they obtain salt and other minerals. State wildlife biologists monitor populations of band-tail pigeons using counts of birds at mineral sites. Understanding the breeding distribution and migration strategies of band-tailed pigeons will help optimize this survey. Recent advances in the miniaturization of satellite...
The objective of our study was to compare winter movement patterns of sympatric greater and lesser sandhill cranes (Grus canadensis tabida and G. c. canadensis) wintering in the Sacramento-San Joaquin Delta region of California (Delta). We marked 31 greaters and 45 lessers with VHF radios and recorded their roosting and feeding locations throughout the wintering periods in 2007/08 and 2008/09. Ten of the lessers were also marked with platform terminal transmitters and tracked via the Argos Satellite System. Compared to lessers, locations of greaters were much more predictable. Greaters showed strong fidelity to wintering sites and moved between discrete wintering areas less frequently. During the second year of...
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