[obol] Canada geese diving underwater at Koll Wetlands, Washington County

  • From: John Pendleton <johnpend1@xxxxxxxxx>
  • To: Oregon Birders OnLine <obol@xxxxxxxxxxxxx>
  • Date: Mon, 27 Sep 2021 07:37:17 -0700



There was a group of 4-5 Canada Geese that would plunge underwater and stay 
completely submerged for 3-5 seconds at Koll Wetlands today on 9/25.

Internet (very brief search) seems to agree that this is quite unusual but 
known behavior. This was a first for me. No predators in sight, and I didn’t 
see any obvious evidence of feeding, though I assume that’s what they were 
doing. 

John Pendleton 
SW Portland
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