[NatureNS] Greylag Goose clarifications

Date: Mon, 15 Nov 2010 12:54:30 -0400
From: iamclar@Dal.Ca
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All:

Angus MacLean has clarified the colour of the orbital ring of the  
goose by pointing out to me that enlarging photos (as I did to assess  
the orbital ring colour) adds pixells and dilutes colours. Indeed,in  
some of the un-enlarged  photos, the ring does appear distinctly  
orange. This is o.k for some first-winter birds. In the Western  
subspecies, adults (like the one in Connecticut last winter) the ring  
tend to be more vividly orange or red.

On another matter, several (including the Truro Daily News) have  
referred to the goose as coming from (western) Europe. Those  
populations, including birds nesting in Britain and Ireland, are  
non-migratory. Our goose, if wild, would certainly have come from the  
population (80,000+) nesting in Iceland and mostly wintering in the  
British Isles. The species is only a vagrant in Greenland, but once  
there, it probably joined a flock Canada Geese. These have spread to  
breed in W. and S. Greenland during the later last century. They still  
follow their ancestral migratory route to New England and beyond via  
Ungava and through e. QC, PEI, NB and w. NS, rather than down the  
Atlantic Coast (as pointed out earlier by Eric Mills).

Cheers, Ian

Ian McLaren

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