[NatureNS] Pilgrim Geese not Greater White-fronted Goose

Date: Tue, 07 Apr 2009 06:42:42 -0300
From: Hans Toom <Htoom@hfx.eastlink.ca>
To: "Naturens@Chebucto.Ns.Ca" <naturens@chebucto.ns.ca>,
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My fear about possible escapees were as it turns out well founded!

The Greater White-fronted Geese I reported yesterday are in fact probably a rare domestic escapee known as Pilgrim Geese.  I can find no information on the genetics of the Pilgrim Geese but folk culture has them coming over with the pilgrims although some say they were bred during the great depression.  The identification give away is the larger bill, thick necks and short wings. 

Interestingly, on my very first trip to Cape Sable Island a little over nine years ago I spotted a Bar-headed Goose swimming off shore, but I got that one right.

Here are some comments from Ronald G. Arsenault.

Hans,

I think you are right when you wonder about possible escapees.  The triangular beak, resulting in a straight sloping profile (like an eider), the heavy appearing bodies, rather thick necks and short wings all suggest domestic birds.  These look like female Pilgrim Geese (the only sexually dimorphic breed of geese),  the breed most likely to be confused with White-fronted Geese as they do have white patch at the base of the bill (although quite variable) and are relatively "light" for a domestic breed. However, it may not be the only breed which might resemble a White-fronted Goose.

The White-fronted Goose does not have as large a beak and thus it does not have the straight line profile, resulting in a "forehead", though perhaps not as pronounced as in some other species.  I would also expect the birds to be slimmer and with longer wings.

Compare a White-fronted Goose here:  http://www.1000birds.com/latest2007114GWFG.htm
with a Pilgrim female here:  http://performancepoultry.com/assets/images/duck2.jpg

Hope this is helpful.

Ron

Ronald G. Arsenault
Memramcook, N.B.


_________________________________
Hans Toom
Portuguese Cove, Nova Scotia, Canada
Website: http://hanstoom.com 
_________________________________

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<DIV><FONT face=Arial size=2>My fear about possible escapees were as it turns 
out well founded!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>The <STRONG>Greater White-fronted Geese</STRONG> I 
reported yesterday are in fact probably a rare domestic escapee known as 
<STRONG>Pilgrim Geese.</STRONG>&nbsp; I can find no information on the genetics 
of the Pilgrim Geese but folk culture has them coming over with the pilgrims 
although some say they were bred during the great depression.&nbsp; The 
identification give away is the larger bill, thick necks and short wings. 
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Interestingly, on my very first trip to Cape Sable 
Island a little over nine years ago I spotted a <STRONG>Bar-headed 
Goose</STRONG> swimming off shore, but I got that one right.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Here are some comments from Ronald G. 
Arsenault.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>
<DIV><EM>Hans,</EM></DIV>
<DIV><EM></EM>&nbsp;</DIV>
<DIV><EM>I think you are right when you wonder about possible escapees.&nbsp; 
The triangular beak, resulting in a straight sloping profile (like an eider), 
the heavy appearing bodies, rather thick necks and short wings all suggest 
domestic birds.&nbsp; These&nbsp;look like female Pilgrim Geese (the 
only&nbsp;sexually dimorphic breed of geese), &nbsp;the breed most likely to be 
confused with White-fronted Geese as they do have white patch at the base of the 
bill (although quite variable) and are relatively "light" for a domestic breed. 
However, it may not be the only breed which might resemble a White-fronted 
Goose.</EM></DIV>
<DIV><EM></EM>&nbsp;</DIV>
<DIV><EM>The White-fronted Goose does not have as large a beak and&nbsp;thus it 
does not have the straight line profile, resulting in&nbsp;a "forehead", though 
perhaps not as pronounced as in some other species.&nbsp; I would also expect 
the birds to be slimmer and with longer wings.</EM></DIV>
<DIV><EM></EM>&nbsp;</DIV>
<DIV><EM>Compare a White-fronted Goose here:&nbsp; </EM><A 
href=""><EM>http://www.1000birds.com/latest2007114GWFG.htm</EM></A></DIV>
<DIV><EM>with a Pilgrim female here:&nbsp; </EM><A 
href=""><EM>http://performancepoultry.com/assets/images/duck2.jpg</EM></A></DIV>
<DIV><EM></EM>&nbsp;</DIV>
<DIV><EM>Hope this is helpful.</EM></DIV>
<DIV><EM></EM>&nbsp;</DIV>
<DIV><EM>Ron</EM></DIV>
<DIV><EM></EM>&nbsp;</DIV>
<DIV><EM>Ronald G. Arsenault<BR>Memramcook, N.B.<BR></EM></DIV></FONT></DIV>
<DIV>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>_________________________________<BR>Hans 
Toom<BR>Portuguese Cove, Nova Scotia, Canada<BR>Website: <A 
href="http://hanstoom.com">http://hanstoom.com</A> 
<BR>_________________________________</FONT></DIV></BODY></HTML>

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