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Re: How Pelicans learn to fish
Absolutely; in fact, there is at least one study that used a radar depth gauge
to determine gannet dive depth, and they regularly went several meters below
the surface. I think the deepest dive was over 10 meters below the surface.
The estimated drag coefficient for a gannet/booby entering the water is roughly
the same as a plate of glass doing the same.
I have the paper stored away somewhere as PDF; I can pull it up if someone
On Nov 3, 2010, at 11:24 AM, Thomas R. Holtz, Jr. wrote:
> And I can tell you from experience (having been snorkling during bird feeding
> featuring both boobies and pelicans): boobies dive
> MUCH deeper as a consequence, while pelicans are mostly capturing
> near-surface fish.
> Thomas R. Holtz, Jr.
> Email: firstname.lastname@example.org Phone: 301-405-4084
> Office: Centreville 1216
> Senior Lecturer, Vertebrate Paleontology
> Dept. of Geology, University of Maryland
> Fax: 301-314-9661