On Sunday, the same day that I enjoyed a bunch of winter birds in Sullivan County and Ulster County, I also had a chance encounter with a diminutive goose. It was on the side of the road in a field at Blue Chip Farm, a large horse farm near the town of Wallkill. But it wasn’t so easy as driving along, pulling over, spotting the bird, and driving on my merry way. No, finding a Cackling Goose takes a bit more work than that!
What is a Cackling Goose? A Cackling Goose is a very small Canada Goose, or, at least, it used to be. In 2004, in a long anticipated decision, the American Ornithologists’ Union decided that the tiniest types of the Canada Goose were actually a completely separate species – the Cackling Goose, Branta hutchinsii. Birders everywhere suddenly had added incentive to search through giant flocks of Canada Geese which explains why when I saw a flock of about two hundred Canada Geese in a field at the side of the road at Blue Chip Farm I pulled over and started scoping through them hoping to find something good.
And, sure enough, I found a cackler! How did I pick the one smaller goose out of the flock of bigger geese? I wasn’t looking at the birds’ body size as I scanned because Canada Geese, even those that are still considered Canada Geese, can be very variable in body size. What I was looking for was a bird with bright white cheeks. For whatever reason, Cackling Geese have cheeks that practically glow and as you scan through a flock of birds the cheek patch can really stand out if you are looking for it.
Even once the geese I was scoping took off and flew into a small pond, joining a host of their closest geese-friends, making a flock of about 1,000 birds, I had no problem finding the Cackling Goose. Do you see that cheek patch glowing in the picture above? Of course, just having a bright white cheek does not make a goose a cackler. They should be very small, about the size of a Mallard, and have proportionally smaller bills. David Sibley has a great post that gives many of the finer points of Cackling Goose identification.
The main thing you need to do to find a Cackling Goose – or any other rare goose – is to be willing to search patiently through the flocks of Canada Geese that you find. It will make you a better birder and maybe, just maybe, you will be the lucky one who finds a bird like this or this. Even if you don’t you will see remarkable variety in the Canada Geese you find and will gain new appreciation for a very common bird.
Now get out there and get looking for your Cackling Goose!
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Love these types of articles.. Very informative. I’m off to find some geese!
That’s interesting. I wasn’t aware of the white cheeks. Does it work with all forms of Canada Goose?
However, be aware that you might lose this year bird if the taxonomy of the Cackling/Canada-Goose changes by e.g. more splitting. I’ll have to call a few friends at the AOU, your increases in the competition have reached scary dimensions. Time to act! 🙂
@Brian: Glad you liked it – good luck finding a good goose!
@Jochen: All I know is that cacklers have really white cheeks. And, if all goes according to plan, Canada Geese will be split into 18 species and I will have seen them all!
No, no! They’ll split them and will then publish an ID paper that will come to the conclusion that all the species within the Canada Goose complex can only be identified by genetic analysis, not by field methods. And then you won’t have any Canada Goose whatsoever on your list. Of course the same paper will state that only one form was ever introduced to Europe, so mine are fine and I get to keep it. Ha!! 🙂