crm211b Posted October 20, 2019 Share Posted October 20, 2019 Hi, These guys were way off-shore along the Ottawa River this morning. I don't see any white chin spot so I was thinking Red-breasted, but much closer to shore, I was seeing Commons so I wanted to be sure that these guys were different. What do you think? Darryl Link to comment Share on other sites More sharing options...
akandula Posted October 20, 2019 Share Posted October 20, 2019 (edited) These are female/immature Red-breasted Mergansers. As you were saying, Common Mergansers have a white chin, cleaner border between the head and breast coloring, and a shorter, thicker-based bill. Edited October 20, 2019 by akandula 1 Link to comment Share on other sites More sharing options...
crm211b Posted October 20, 2019 Author Share Posted October 20, 2019 Thanks! Darryl Link to comment Share on other sites More sharing options...
Tony Leukering Posted October 27, 2019 Share Posted October 27, 2019 https://cobirds.org/CFO/ColoradoBirds/InTheScope/82.pdf Link to comment Share on other sites More sharing options...
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