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March 2007


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Vermont Birds <[log in to unmask]>
Wed, 28 Mar 2007 16:19:38 -0500
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That's what I get for relying on anonymous sources. <heh>  Thanks for 
looking it up.

MARC has always been pretty conservative, though (and this I do know 
from directt personal experience!), so it's interesting that they're 
willing to accept BGoose records.


Allan Strong wrote:

> The Massachusetts records committee does post its decisions on line, and 
> it looks like they have accepted 4 Barnacle Goose records in the last 
> +/- 5 years (and a 5th report was not accepted).  Although I serve on 
> the VT records committee, I must admit I don't know what our criteria 
> are for assessing the origin of individuals that have a history of 
> presence in captivity.  Some, obviously are filtered out immediately 
> (Ringed Turtle Dove, White-tailed Hawk, etc.), but others are more 
> difficult to assess.
> http://massbird.org/MARC/MARCactions.htm
> Allan
> At 01:33 PM 3/28/2007 -0500, you wrote:
>> For whatever it's worth, my understanding is the very conservative 
>> Massachusetts records committee is also firmly opposed to accepting 
>> Barnacle goose.  I've been told that one of the reasons is that these 
>> birds are widely kept in private -- often illegal and therefore 
>> unbanded -- collections of exotics and frequently escape.
>> (Can't personally verify either of the above, just repeating what I've 
>> been told by more knowlegeable people.)
>> I wonder about the issue of feather wear as a determinant.  I would 
>> think the presence of a particular pattern would be a pretty good 
>> indication that the bird is a recent escape, but unless I'm 
>> undereducated on the subject, I don't see how its absence can prove 
>> it's not, since over time, the damaged feathers would be replaced, and 
>> even the behavior would become more "wild" after a couple of years of 
>> associating with a wild flock, wouldn't it?
>> If the default assumption of records committees is that a Barnacle is 
>> an escape unless proven otherwise, is the only acceptable proof of 
>> wild origin then a band recovery?
>> Jane