Glenn, I used data on Polaris from an article in American Birds which quoted a Cornell ornithologist (formerly at the University of Michigan), Stephen Emlen. His research was done in the 1960's.
Bob Berman confirmed your correction. Thank you for taking the time to correct the data.
Glenn, I used data on Polaris from an article in American Birds which quoted a Cornell ornithologist (formerly at the University of Michigan), Stephen Emlen. His research was done in the 1960's.
Bob Berman confirmed your correction. Thank you for taking the time to correct the data.
Tom