@misc{indiciaeba2ca44bb84d, title = {Effect of hunting on annual survival of grey ducks in New Zealand}, author = {Richard J. Barker and James E. Hines and James D. Nichols}, year = {1991}, doi = {10.2307/3809148}, url = {https://pubs.usgs.gov/publication/5222572}, note = {Source identifier: 5222572} }