Data were downloaded in Feburary, 2004, from the results provided online by Pennsylvania Spacial Data Access program, and are presented here by agreement between the atlas project, NBII, and USGS Patuxent Wildlife Research Center.
Results should be
Bird Atlas Explorer (online resource). 2013. U.S. Geological Survey
Patuxent Wildlife Research Center & National Biological Information
Infrastructure. <Date of access>. http://www.pwrc.usgs.gov/bba.
Data extracted from: Brauning, Daniel W., ed. 1992. Atlas of Breeding Birds in Pennsylvania. Pittsburgh, PA: University of Pittsburgh Press. 484pp.
The Academy of Natural Sciences of Philadelphia (ANSP) and the Pennsylvania Game Commission (PGC) reserve the right to deny requests for large portions of Atlas data or request for reimbursement for handling costs. Any use of these data should be accompanied by the proper citation as shown above. The ANSP, PGC, and Wild Resource Conservation Fund reserve the right to use Atlas data for research and publication. Raw data or data summaries will be made available for analysis and publication within the constraints of the of the University of Pittsburgh Press copyright. All three major sponsoring institutions must be given credit in any publications incorporating the data. Daniel Brauning must be offered co-authorship for any publication involving substantial portions of the Atlas data. The University of Pittsburgh Press holds copyright to the published Atlas of the Breeding Birds in Pennsylvania and any use of its contents, particularly species distribution maps, must be approved by them. For questions, e-mail Daniel Brauning at: DBrauning@state.pa.us, or write him at: Pennsylvania Game Commission, 2001 Elmerton Ave., Harrisburg, PA 17110-9797.
Sponsorship for this project was provided by the Academy of Natural Sciences of Philadelphia, the Carnegie Museum of Natural History, the Pennsylvania Audubon Council, the Pennsylvania Game Commission, and the Wild Resources Conservation Fund.
Treatment of the received dataset
We imported the
with modifications as follows to better combine with other atlases or to match publication cited above:
Changed the quad name for the southern of the two Friendsville quads to ‘Friendsville MD’ to distinguish between the two.
Excluded the following species with data of PO or higher because they are listed as "species observed during atlas period but with insufficient evidence to be cinsidered nesting" in the published atlas:
Chukar, Common Loon, Herring Gull, Ring-billed Gull, Common Tern, Red-breasted Merganser, Northern Pintail, Ring-necked Duck, Bewick's Wren, Great Black-backed Gull, Laughing Gull, Forster's Tern, Double-crested Cormorant, Gadwall, Redhead, Ruddy Duck, Little Blue Heron, Golden Eagle, Red Crossbill, and Blackpoll Warbler.
Daniel W. Brauning at