Behavior of peregrines in winter in south Texas. Enderson, J., H., Larrabee, J., Jones, Z., Peper, C., & Lepisto, C. Journal of Raptor Research, 29(2):93-98, 1995.
Behavior of peregrines in winter in south Texas [link]Website  abstract   bibtex   
The movements and other behaviors of seven radio tagged peregrine falcons (Falco peregrinus) were determined in winter near the Laguna Madre in southern Texas in 1993 and 1994. In January and February most of the falcons hunted in areas 20-28 km across and showed extensive overlap. Most locations of falcons we monitored were on the vast tidal flats at the margins of the Laguna or over the shallow water where numerous perches are present in an otherwise featureless habitat. One adult femalemoved a maximum of less than 8km. Four of the falcons we instrumented had been trapped in te area before, or remained months after the study. We estimated a minimum density of 20 peregrines inland of the beaches of South Padre Island, or about one bird per 50km2. The Gulf Coast of Texas and Mexico have several times the area of tidal flats we observed and the region is surely a major newly discovered wintering area for peregrines. We speculate that some peregrines may spend their first summer there.
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 title = {Behavior of peregrines in winter in south Texas},
 type = {article},
 year = {1995},
 keywords = {Texas,behavior,peregrine,radio telemetry,winter dispersion},
 pages = {93-98},
 volume = {29},
 websites = {http://elibrary.unm.edu/sora/jrr/v029n02/p00093-p00098.html},
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 abstract = {The movements and other behaviors of seven radio tagged peregrine falcons (Falco peregrinus) were determined in winter near the Laguna Madre in southern Texas in 1993 and 1994. In January and February most of the falcons hunted in areas 20-28 km across and showed extensive overlap. Most locations of falcons we monitored were on the vast tidal flats at the margins of the Laguna or over the shallow water where numerous perches are present in an otherwise featureless habitat. One adult femalemoved a maximum of less than 8km. Four of the falcons we instrumented had been trapped in te area before, or remained months after the study. We estimated a minimum density of 20 peregrines inland of the beaches of South Padre Island, or about one bird per 50km2. The Gulf Coast of Texas and Mexico have several times the area of tidal flats we observed and the region is surely a major newly discovered wintering area for peregrines. We speculate that some peregrines may spend their first summer there.},
 bibtype = {article},
 author = {Enderson, James H. and Larrabee, Jon and Jones, Zach and Peper, Chris and Lepisto, Chris},
 journal = {Journal of Raptor Research},
 number = {2}
}

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