@misc{indiciae433772c8a59f, title = {Vocal activity as a low cost and scalable index of seabird colony size}, author = {Abraham L. Borker and Matthew W. McKown and Joshua T. Ackerman and Collin A. Eagles-Smith and Bernie R. Tershy and Donald A. Croll}, year = {2014}, doi = {10.1111/cobi.12264}, url = {https://pubs.usgs.gov/publication/70099139}, note = {Source identifier: 70099139} }