@misc{indiciaec03eb5381cbc,
  title = {Seasonal influence of nutrients on the physiology and behavior of captive canvasbacks (Aythya valisineria)},
  author = {Matthew C. Perry},
  year = {1986},
  url = {https://pubs.usgs.gov/publication/5223158},
  note = {Source identifier: 5223158}
}