Of course, they were less interested in the factual than in ridding themselves of last winter's loose fur.
Large boulders in the prairie have been worn smooth by generations of bison rubbing their itching coats against them, but they're certainly not fussy, and a noticeboard's fence will do just as well.
As will a roadsign. I hope this one is still standing tomorrow, despite the best efforts of 2,000 lb (900 kg) of bison bull
They seem to think that it's spring, and they're not the only ones. A handful of prairie crocuses are now in bloom
And yet snow is forecast for Saturday