U.S. Geological Survey Home Page USGS Patuxent Wildlife Research Center Science Meetings; dedicated to Chandler S. Robbins USGS Patuxent Wildlife Research Center; Science Meetings dedicated to Chandler S. Robbins Dedicated to Chan Robbins USGS Patuxent Wildlife Research Center; Science Meetings dedicated to Chandler S. Robbins Poster Abstracts from USGS Patuxent Wildlife Research Science Meetings, October, 2006
Patuxent Science Meeting 2006 Poster Abstract

Identifying stopover sites for migrating passerine birds in the lower

Chesapeake Bay region

Mabey S (NCSU), Watts B, Paxton B, Smith F (CCB-CW&M), Truitt B (TNC),

Dawson DK

Stopover sites in the Lower Chesapeake Bay region, used in autumn by passerine birds that

migrate nocturnally, have been identified from radar data (WSR-88D/NEXRAD, Wakefield, VA;

and NPOL, a higher resolution NASA radar installed at Oyster, VA). Radar detects birds as

they leave daytime stopover sites to resume their migration. Exit locations were mapped

through the season to identify sites that receive high or consistent use. Field surveys on the

Lower Delmarva Peninsula provided independent estimates of the spatial and temporal

distribution of migrants, ground-truthing the radar results. Vegetation characteristics of available

habitats were sampled, and the relationship of migrant distribution and abundance with habitat

and landscape characteristics is being modeled. Project results will aid in the evaluation of

radar as a tool for identifying important stopover sites and tracking bird migration patterns, and

Friday, September 22, 2006



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