Looks like he already has.
A game warden/conservation officer will come pick that up from you and take it out somewhere to release it if you call. They might also cruise by in the future if they know it attacked your chicken though, which would be inconvenient if other hawks were to have unfortunate accidents.
Alternatively, it is a nice time of year for a drive out into the woods a bit. Your friend there could come along and find a new home far, far away. Hawks should not be seen coming out of people's cars, however.