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Old 09-21-2021, 03:34 PM   #4
EagleCrag
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Join Date: Mar 2010
Location: Gloversville, NY
Posts: 1,258
I can't speak directly to how large a fish a Merganser can eat but I can verify that a loon can swallow a 12" fish with no trouble so an 8 inch fish for a Merganser seems like a no brainer to me. Fish eating birds can swallow a much larger fish than you would think. And those Cormorants on Lake Champlain..........I won't go there! I have also witnessed Mergansers fishing together in front of my camp where I could watch them swim under water and I do believe that they hunt together and work together to capture prey.
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