[EBB Sightings] Strange Duck at Lake Merritt, Oakland

Rusty Scalf wrote:

> Has anyone observed what this apparent hybrid duck is eating?
> 
> Hooded Mergansers are primarily fish eaters, I believe.  Goldeneyes feed 
> primarily on bivalve mollusks in winter.  Does this fellow go either way?

Sample of one: I watched him eat a whole mussel that was so large it 
took a couple of minutes to get lined up so it would slide down his 
gullet.... (Actually, I didn't see it go down, but one of the friends I 
was with said he did.)

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