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The effect of observer experience on English Breeding Bird Survey population trends
Eglington, Sarah M., Davis, Sarah E., Joys, Andrew C., Chamberlain, Dan E., Noble, David G.Volume:
57
Language:
english
Journal:
Bird Study
DOI:
10.1080/00063650903440648
Date:
May, 2010
File:
PDF, 185 KB
english, 2010