Water level management and contaminant exposure in tree swallows nesting on the upper Mississippi River /

Bibliographic Details
Main Author:	Custer, Thomas W.
Corporate Author:	Geological Survey (U.S.)
Other Authors:	Custer, Christine Mitchell
Format:	Government Document Book
Language:	English
Published:	[Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, [2005]
Series:	U.S. Geological Survey open-file report ; 2005-1281.
Subjects:	Tree swallow > Mississippi River Watershed. Indicators (Biology) > Mississippi River Watershed. Watershed ecology > Mississippi River Watershed. Mercury > Environmental aspects > Mississippi River Watershed.
Online Access:	https://purl.fdlp.gov/GPO/LPS81443

Description
Item Description:	Title from title screen (viewed May 10, 2007). "July 2005." Electronic resource.
Physical Description:	2 unnumbered pages : digital, PDF file.
Format:	Mode of access: Internet from the USGS web site. Address as of 5/10/07: http://pubs.usgs.gov/of/2005/1281/ofr051281.pdf ; current access is available via PURL.