Re: [EXTERNAL] Re: [sbcobirding] Bird Refuge

Nick Lethaby <nlethaby@...>



Thanks for posting this. I have always wondered how to distinguish first-year males from females. Hopefully this will help.




From: [] On Behalf Of Wim van Dam
Sent: Friday, March 22, 2019 11:34 AM
Subject: [EXTERNAL] Re: [sbcobirding] Bird Refuge


Related to this: Here is a good article on identifying mergansers

Wim van Dam (Solvang, CA)
SBCO #383: Blue-winged Warbler

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