I've been daydreaming about something like this for my squirrel problem. The damn things nearly leave me without nectarines unless I install a cumbersome, unsightly net over the tree.
Doesn't bother the birds, but mammal tongues light right up.
First 2 years under a sponsor--you can get a very specific hawk or falcon (which hawk or falcon is geographically dependent) After 2 years & sponsor approving it-- you are now a general falconer. Have fun with other raptors, including owls. OTOH.... Wild Owls: excellent pest control.