The breeding bird atlas of Montgomery County, Maryland, USA
Acta Ornithologica
Proceedings of the fourth meeting of the International Bird Census Committee and second meeting of the European Ornithological Atlas Committee / editors, J. Pinowski and K. Williamson, held 1972, Warsaw, Poland
By: M. K. Klimkiewicz and C.S. Robbins
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Abstract
A two-year Breeding Bird Atlas program for Montgomery County was undertaken by the Maryland Ornithological Society in 1971-1972. The county was divided into 65 5 km blocks and each block was assigned to an observer. Preliminary results show 46 to 93 species (mean 66) recorded per 5 km block and from 10 to 52 species (mean 28) confirmed per block. When the data are combined into 10 km block, the number of species recorded ranges from 74 to 97 (mean 88) and the number of confirmed species ranges from 36 to 62 (mean 49). The organizers underestimated the amount of time that would be required for sufficient coverage, and they plan to extend coverage for a third year in order to provide a much firmer basis for future comparisons. Specific suggestions for improving coverage are listed. The advantages of using as small a grid as possible are stressed, and it is recommended that in future Atlas projects each assigned block be subdivided into quarters for more detailed mapping, and especially to enable future changes in bird distribution to be detected more readily.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The breeding bird atlas of Montgomery County, Maryland, USA |
| Series title | Acta Ornithologica |
| Volume | 14 |
| Issue | 37 |
| Year Published | 1974 |
| Language | English |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 446-458 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Acta Ornithologica |
| First page | 446 |
| Last page | 458 |
| Google Analytic Metrics | Metrics page |