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Atlas of the Breeding Birds of Maryland and the District of Columbia

ISBN: 0822939231
By: , and 
Edited by: C.S. Robbins and G.D. Therres

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Abstract

This was the result of a 5-year cooperative study with the Maryland Ornithological Society and the Maryland Department of Natural Resources. Each of Maryland's 1,256 5-km (25 sq km) blocks was surveyed for breeding birds using the standard categories of Possible, Probable, and Confirmed breeding. Special features include: (1) coverage of all blocks instead of a random sample; (2) one-third of the state (including the most rapidly changing counties) was covered in quarterblocks (2.5 km on each side) to facilitate detecting future changes; (3) quantitative sampling (miniroutes) was completed in more than half the blocks; (4) a 2 percent statewide random sample of blocks was searched for about 30 hours each by Patuxent professionals to evaluate efficiency of coverage by the volunteers; (5) besides species maps for 1983-87, the atlas also includes distribution maps from the 1950s; (6) life history data are based largely on unpublished Maryland information.

Additional publication details

Publication type Book
Title Atlas of the Breeding Birds of Maryland and the District of Columbia
Year Published 1996
Language English
Publisher University of Pittsburgh Press
Publisher location Pittsburgh, PA
Contributing office(s) Patuxent Wildlife Research Center
Description xx, 479