I see from Wikipedia that its conservation status falls into the "Least concern" category (though some subspecies are rather rare). You could have taken a shotgun and blasted it. :-)
I got the impression that it was endangered from the time when I was a member of the Nature Conservancy. That organization often sent me letters and pamphlets with photos of Sandhill Cranes on them.
I'm a tall skinny guy myself, with a somewhat prominent nose, so I rather resemble a crane. When I used to send birthday cards and that sort of things to friends, I'd cut out one of the Nature Conservancy photos and put it next to my signature, as a visual representation of myself. Glad to hear that we're not endangered.