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. 2011 Dec 20;5(12):e1452. doi: 10.1371/journal.pntd.0001452

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Thiemann et al.

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are properly credited.

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Map of the farmstead study site northeast of Davis, CA [38.6037°, −121.7094°] showing the locations of three dry-ice baited (CO₂) traps and walk-in red box and porch resting collection sites. Approximate distributions of nesting herons and egrets were based on transect counts made in June 2008 and are delineated by colored outlines.