[TN-Bird] Fwd: Questions for the group

From: "Raincrow" <raincrow@xxxxxxxxxxx>
To: "TN-birds" <tn-bird@xxxxxxxxxxxxx>
Date: Fri, 21 Oct 2005 09:54:28 -0700
Barry has asked two excellent questions=2E With respesct to the cowbird ques=
tion, I'd like to add a question of my own: does a cowbird raised by, say, a=
 sparrow, tend to seek out and parasitize the species that successfully pare=
nted it?

Liz SIngley
Kingston TN

----- Original Message -----
From: FINCH64@aol=2Ecom [mailto:FINCH64@aol=2Ecom]
Sent: 10/21/2005 8:42:50 AM
To: tn-bird@freelists=2Eorg
Subject: [TN-Bird] Questions for the group

Last night at the NTOS meeting it was the time to ask questions about birds=20=

that you were afraid to ask=2E I have thought of two since last night and th=
ey=20
are the following:
Are there any mimic migrants who pick up the songs of tropical endemics and=20=

then sing some of those songs here when they return? This would include any=20=

birds native to North America north of the Mexican border - so even possible=20=

mimic migrants in the western USA would be candidates for my question=2E

And I know how much some birders "love" cowbirds ;-) So I'll ask this=20
question - Have there been any studies done as to what happens that causes c=
owbirds=20
(or actually any other nest parasites - cuckoos, honeyguides, etc) to sudden=
ly=20
realize they are cowbirds and not the same species as the host parents? I am=20=

wondering if some kind of DNA is dormant within them and maybe it suddenly=20=

becomes activated? Or as they grow, does their change in appearance cause th=
e=20
parents to drive them away?

Okay those are the questions that I would have asked, had I thought of them=20=

at the time=2E

Barry Jernigan
Murfreesboro, Rutherford, TN


=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3DNOTES TO SUBSCRIBER=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

The TN-Bird Net requires you to sign your messages with
first and last name, city (town) and state abbreviation=2E
You are also required to list the count in which the birds
you report were seen=2E  The actual date of observation should
appear in the first paragraph=2E
_____________________________________________________________
To post to this mailing list, simply send email to:
tn-bird@freelists=2Eorg=2E
_____________________________________________________________=20
To unsubscribe, send email to:
tn-bird-request@freelists=2Eorg=20
with 'unsubscribe' in the Subject field=2E
______________________________________________________________
  TN-Bird Net is owned by the Tennessee Ornithological Society=20
       Neither the society(TOS) nor its moderator(s)
        endorse the views or opinions expressed
        by the members of this discussion group=2E
=20
         Moderator: Wallace Coffey, Bristol, TN
                 wallace@bristolbirdclub=2Eorg

_____________________________________________________________
     Visit the Tennessee Ornithological Society
          web site at http://www=2Etnbirds=2Eorg
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Topographical Maps located at http://topozone=2Ecom/find=2Easp

_____________________________________________________________



=================NOTES TO SUBSCRIBER=====================

The TN-Bird Net requires you to sign your messages with
first and last name, city (town) and state abbreviation.
You are also required to list the count in which the birds
you report were seen.  The actual date of observation should
appear in the first paragraph.
_____________________________________________________________
To post to this mailing list, simply send email to:
tn-bird@xxxxxxxxxxxxxx
_____________________________________________________________ 
To unsubscribe, send email to:
tn-bird-request@xxxxxxxxxxxxx 
with 'unsubscribe' in the Subject field.
______________________________________________________________
  TN-Bird Net is owned by the Tennessee Ornithological Society 
       Neither the society(TOS) nor its moderator(s)
        endorse the views or opinions expressed
        by the members of this discussion group.
 
         Moderator: Wallace Coffey, Bristol, TN
                 wallace@xxxxxxxxxxxxxxxxxxx

_____________________________________________________________
     Visit the Tennessee Ornithological Society
          web site at http://www.tnbirds.org
* * * * * * * * * * * * * * * * * * * * * * * * * * * * *
Topographical Maps located at http://topozone.com/find.asp

_____________________________________________________________
[TN-Bird] Fwd: Questions for the group

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