@book{bhlitem50680, title = {The winter bird-life of Minnesota; being an annotated list of birds that have been found within the state of Minnesota during the winter months }, copyright = {Public domain. The BHL considers that this work is no longer under copyright protection.}, url = {https://www.biodiversitylibrary.org/item/50680}, note = {https://www.biodiversitylibrary.org/bibliography/14618}, publisher = {Minneapolis, Minn, 1916}, author = {Roberts, Thomas S. (Thomas Sadler),}, year = {1916}, pages = {30}, keywords = {Birds|Minnesota|}, }