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zdgesb84

Another Cackling or Canada?

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Mid-Michigan a few days ago.  Looked smaller through the scope but the Canada were close by for easy comparison.  Same two birds in the center of the photos.  I tried to include some of the Mallards and Canadas in the background for scale.  Thanks.  

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Small migrant Canadas. Richy's Cacklers aren't much bigger than a Mallard. 

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Probably as akiley suggested, though size in geese has been shown to be correlated with food supplies on breeding grounds during breeding season -- more/better food = larger; less/worse food = smaller

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