It could be that the Mockingbird knows that squirrels can be predators to 
eggs and young,  and is mimicking to keep other animals, including 
squirrels, away.

Just a thought.

George

----- Original Message ----- 
From: "Bill & Carol Moody" <>
To: <>
Sent: Friday, June 26, 2009 6:32 AM
Subject: [MDOSPREY] Odd Mockingbird Behavior


> We have a Northern Mockingbird nesting in a little trellis by the turnout 
> in
> our driveway.  Lately I have noticed that it sits in various nearby trees
> making sort of an agitated (sorry for the phoenetics) "churrrrrrring" 
> sound,
> almost like you hear from a squirrel.  Over and over and over. After I
> became sensitive to it,  I believe I have heard the same call from other
> mockers in the area.  Does anybody know if this is just a normal part of 
> the
> life cycle?  Thanks for any thoughts.
>
> good birding
> Bill Moody
> Lexington Park/Pax River
> MD