Boreal Chickadee

Poecile hudsonicus

The Boreal Chickadee lives over most of Canada and Alaska. It sometimes seen in the extreme northern regions of the lower 48 states of the USA. Science believes chickadees originally evolved from Eurasian tits that crossed over to North America during Pleistocene glacial periods, sometimes called the Ice Age, some 11,000 to 2.5 million years ago.

The only time I met one of these birds was in the Yukon Territory during my 2005 expedition to Canada and Alaska.

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