Yes, they do swim.  I have observed GBH's jumping/diving off trees
overhanging the river into fairly deep water, and once observed an adult
for several minutes that landed in the middle of the river and then floated
and swam looking for prey. How it got airborne again is still a mystery to
me.
Rich Dolesh
Aquasco, MD
----- Original Message -----
From: "Joe McDaniel" <>
To: <>
Sent: Monday, September 06, 2004 5:28 PM
Subject: [MDOSPREY] Great Blues Swim?


I know that Great Blue Herons wade, but we had a juvenile that was either
wading in really deep water in the pond behind us or swimming. I could not
tell for sure whether he was still wading or swimming, but the body was
about 1/2 submerged. So, do they swim?

Best,

Joe McDaniel
Monrovia, MD