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Estimating non-breeding season bird abundance in prairies: A comparison of two survey techniques

R. J. Fletcher, Auteur ; J. A. Dhundale, Auteur ; T. F. Dean, Auteur

Dans Journal of Field Ornithology (71(2) SPR 2000)

Surveying birds during the non-breeding season in prairie environments can be difficult because birds are less visible and vocal during this period than they are during the breeding season. We compared the effectiveness of using fixed-radius poi[...]

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