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1 December 2007 OCCURRENCE AND CONDITION OF MIGRATING SWAINSON'S THRUSHES IN THE BRITISH VIRGIN ISLANDS
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Abstract

Swainson's Thrushes (Catharus ustulatus) migrate widely throughout North and Middle America. In the Caribbean, the species is known to occur only in the western-most Greater Antilles, and there only as a rare migrant. We captured and visually detected migrant Swainson's Thrushes beginning in 2000 at a banding station on Guana Island, British Virgin Islands. The majority of thrushes captured were adults (79%) and most had no (71%) or little fat (12%) reserves at time of capture; 61% were classified as being in emaciated or poor condition. The poor physiological conditions may have resulted from longer over water flights rather than island hopping.

Clint W. Boal and Tracy S. Estabrook "OCCURRENCE AND CONDITION OF MIGRATING SWAINSON'S THRUSHES IN THE BRITISH VIRGIN ISLANDS," The Wilson Journal of Ornithology 119(4), 716-720, (1 December 2007). https://doi.org/10.1676/06-121.1
Received: 8 September 2006; Accepted: 1 January 2007; Published: 1 December 2007
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