@misc{indiciaefb5f681fe0c9, title = {Management of the Chesapeake Bay's waterfowl resources: Long-term trends (1948-86) of wintering waterfowl in Chesapeake Bay}, author = {Matthew C. Perry}, year = {1988}, url = {https://pubs.usgs.gov/publication/5210791}, note = {Source identifier: 5210791} }