@misc{indiciaed8e409f01084, title = {Effects of abundant species on the ability of observers to make accurate counts of birds}, author = {J. Michael Scott and Fred L. Ramsey}, year = {1981}, doi = {10.1093/auk/98.3.610}, url = {https://pubs.usgs.gov/publication/5221079}, note = {Source identifier: 5221079} }