An Atlas o f the Breeding Birds of Shropshire. Edited by Peter Deans, Jack Sankey, Leo Smith, John Tucker, Chris Whittles & Colin Wright. Shropshire Ornithological Society, Shrewsbury, 1992. 204 pages; 142 line-drawings; 140 maps. Paperback £9.95.
The Breeding Bird Atlas o f Cheshire and Wirral. By J. P. Guest, D . Elphick, J. S. A. Hunter & D. Norman. Cheshire and Wirral Ornithological Society, Macclesfield, 1992. 310 pages; 10 black-and-white plates; 106 line-drawings; 157 maps. £16.95.
There has beena steady flow of local breeding bird atlases published over the past 20 years, but it has not often happened that two have been published more or less simultaneously. In this case, both deserve full reviews in British Birds, but, since they refer to adjoining counties, they are here combined in a single account. The basic details for both surveys and both books are essentially similar. The recording unit for both is the standard 2 km X 2 km square (the tetrad), of which there are 870 in Shropshire and 670 in Cheshire and the Wirral.