Shot one years ago, that was banded. Called in about the band, and was told about the bird. Spoke to the guy that transplanted it, too.
Here in California (yeah, I know...) The Rio Grandes were transplanted decades ago, and took off! Now they're everywhere, including the major valley floor fields.
The guy told me that the trouble with the Rio Grandes was that they stayed pretty well below all of the National Forest and public lands, on private ground, providing virtually no public hunting access.
So they planted Miriams at 4000' elevation, knowing that they will move up and down to almost 7000' in some cases.
Who'd have thought that California cared about that.
Anyway, I managed to get that bird within 6 months of being planted, but it had moved up in elevation, which pleased him.
Bird had been eating acorns and watercress. Tasted great!