I have tried lamb but only in the ground form which was not a big hit. I am planning on trying lamb strips soon though. I can source bison pretty easily here (I live in CO), so I do plan on trying that (it's not cheap!). Venison is tougher. I will have to see if I can get a little from some hunting friends.
Rabbit has been tough to source locally surprisingly. I guess I'm a little unsure of the sources. I don't have the freezer room right now to make a big online order but will have the room late this summer, so if I haven't found a local source by then, I'll try it then. The ironic thing is that when Aria was allowed out, she used to catch rabbits all the time and bring them back home. I don't know if she ever ate them though.:lol3:
OH! For the freezer, is the Craigslist at all active out there? I found ours there, just $35.
In my experience, whether or not they like something ground has been unrelated to whether or not they like it in strips. :lol3: I know that's not usually the case, but just putting it out there....
When you do have freezer space, if you can't source rabbit locally, you might want to consider having it shipped from Hare Today. They're in western PA, and ship to TX and AZ without problem (even in summer), so I'm assuming CO wouldn't be an issue. Here's what I buy when I can afford it: https://www.hare-today.com/product_info.php?cPath=21_35&products_id=287 (I find it a lot easier to take the meat off of this than the rabbit chunks - though some people just feed the entire rabbit chunks).