Re: Gansus Bird-Dino Connection - Penn Press Release

[dinoboygraphics@aol.com]

Climbing hoatzin chicks aren't perching...at least while climbing.  
Cassowarys are reported to occasionally scale trees, and I doubt very 
much that they perch.  If a bird is arboreal without wrapping its toes 
around the branch I assume that would be a non-perhcing bird. That 
said, I share Tim's general opinion that modern birds would have a 
difficult time being arboreal non-perchers.

Scott Hartman
Science Director
Wyoming Dinosaur Center
110 Carter Ranch Rd.
Thermopolis, WY 82443
(800) 455-3466 ext. 230
Cell: (307) 921-8333

www.skeletaldrawing.com

-----Original Message-----
From: Tim Williams <twilliams_alpha@hotmail.com>
To: mhabib5@jhmi.edu
Cc: dinosaur@usc.edu
Sent: Wed, 28 Jun 2006 09:24:43 -0500
Subject: Re: Gansus Bird-Dino Connection - Penn Press Release

Michael Habib wrote:Â
Â
> However, arboreality and perching may not always correlate 1:1. [snip] 
>Many modern birds that retreat to trees cannot really 'perch' in the 
> technical sense.Â
Â
Sorry to revive a expired thread, but Michael's comment caught my 
attention. ÂHow can modern birds that retreat to trees do so without 
'perching'?Â
Â
CheersÂ
Â
TimÂ
Â


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