theres a place near the springs they have been trying to develop for 10+ year but they cant because of a mouse!
Yeah it isn't widely known I'm finding. Still super protected in a ton of ways, illegal for non-native Americans to have feathers, carcasses, ect.. but the US Fish and Wildlife Service is the organization that is charged with maintaining the Endangered Species lists.
Also something you all might not know is that here in Denver is the National Eagle Repository. 99% of all Eagle (Bald and Golden) carcasses are processed at that facility. The feathers are harvested and delivered to tribes, museums and such.. cool place.
How long have they been there? I don't think of them as migratory, however wikipedia states some do. Also some will congregate in great numbers during winter months or breeding. I also don't think they actually stayed put for long. As mentioned, they are all over CO, i've seen them by my house too. They were gone after several months though. There are certain times of years when they are very thick in some SWA's, and that is why I was under the impression they don't necessarily stay put. The DOW usually puts out an press release when they are all congregating, however couldn't find it on their website.
Anyway, sorry for the ramble, but that may put the damper on having it a protected area.