Tuesday, 22 March 2022

Re: [cobirds] Long-tailed Duck at Belmar, Male or Female?

Bob, I would agree with your assessment that pink on the bill indicates male sex. So this would be an immature male Long-tailed duck. 

Nick Komar
Fort Collins

On Mar 22, 2022, at 8:30 PM, W. Robert Shade III <wrshade3@gmail.com> wrote:


Most of the comments I have seen from eBird reports peg this very "dirty" looking bird as a female. But it definitely has a pink band on the bill and I cannot find any example photos of female LTDU with a pink bill. Is this a first year male? 


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