@misc{indiciae80b580c6bed4, title = {An evaluation of regression methods to estimate nutritional condition of canvasbacks and other water birds}, author = {D. W. Sparling and J.A. Barzen and J.R. Lovvorn and J.R. Serie}, year = {1992}, url = {https://pubs.usgs.gov/publication/5230219}, note = {Source identifier: 5230219} }