Ron/Tweeters,

Isn't this most likely a case of duck bodies being more dense than
gull bodies. Bone structure probably has something to do with that.
Ducks also seem to need to do a lot of flapping to stay in the air,
but that also is a function of wing area and shape.

Larry Schwitters
Issaquah
On Nov 2, 2010, at 9:40 PM, Rob Sandelin wrote:

> The birding watching question of the day from my class was why do
> gulls float so high on the water compared to ducks? Do they have
> superior waterproofing?
>
> Rob Sandelin
> Naturalist, Writer and Teacher
> Snohomish County
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> Tweeters at u.washington.edu
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