I was reading some article about the last of the Heath Hen's - which are extinct. Someone found 1918 footage of them and ornithologists are all atwitter. By the way, "atwitter" was a great word until that stupid-ass "twitter" screwed it up for everyone.
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Anyway. I think, "Heath Hens" what are those. And I look at the picture.
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They are Prairie Chickens. Well, I love me some Prairie chickens, but I never heard them called "Heath Hens:. And , since they aren't from Britain, the name makes no sense.
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Then I was afraid maybe it was my Grandmother's mid-west showing. And I was afraid Prairie Dogs have a different name - you know like "North American Fat Merkats".
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But no. Still Prairie Dogs.
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After a little investigating, it appears the "Heath Hen" is just a local Eastern name for Prairie Chickens.