Date: 11/12/17 5:55 pm
From: Paul Hertzel <phertzel...> [NEBirds] <NEBirds...>
Subject: Re: [NEBirds] Interesting Canada Geese

In my opinion, your photos most likely contain a mix of interior and
parvipes with perhaps a few Cackling Geese. The only one photographed
that I would judge as Cackling is the bird in the photo marked ML75020551.

Paul Hertzel
Mason City, IA

At 07:04 PM 11/12/2017, you wrote:
>For Canada Goose aficionados, I've posted pics from Kiwanis Park,
>Carter Lake, (just barely in Iowa) of what I believe is a migrant
>flock derived from the well-documented hybrid zone between
>hutchinsii Cacklers and interior Canadas along the west shore of
>Hudson Bay, where our eastern Nebraska hutchies and presumed
>interiors come from. I'm very interested in comments. I found
>several birds in the flock that I think are intergrades, but
>probably 80% at least looked like interiors. I'd really appreciate
>comments! I may be completely wrong, and if so I want to know!
>Ross Silcock

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