I believe there smaller than normal (and also larger than normal) birds of a given species. I once saw a MOURNING DOVE at Watkin's Mill SP that was twice as large as a normal Mourning Dove.

Larry Lade
Saint Joseph, MO
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--- On Wed, 3/30/11, Mike Doyen <[log in to unmask]> wrote:

From: Mike Doyen <[log in to unmask]>
Subject: Dwarfism in birds?
To: [log in to unmask]
Date: Wednesday, March 30, 2011, 11:01 AM

The tiny (smaller than a least grebe) Pied-billed Grebe I noticed at Little Prairie Lake the other evening begs me to ask if there is dwarfism in birds like in humans and other animals? Appreciate any information on this subject.
 
Thank you
Mike doyen
Rolla, MO

Bird by bird I've come to know the earth.
Pablo Neruda.
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The Audubon Society of Missouri's Wild Bird Discussion Forum
ASM Spring Meeting: April 29 - May 1, 2011 in Kansas City, Missouri, http://mobirds.org/Meetings/sprmtg2011.asp
------------------------------------------------------------
The Audubon Society of Missouri's Wild Bird Discussion Forum
ASM Spring Meeting: April 29 - May 1, 2011 in Kansas City, Missouri, http://mobirds.org/Meetings/sprmtg2011.asp