I've never seen anything like this before?

Looks like wall art.

Homemade wire chain? Looks cool but I don't know if its art or used for real

Old bird trap !

I've never seen anything like it but I agree with GritGuy, a bird trap.

It's a live market trap for a 13 striped ground squirrel.

Prolly^^^

Thanks for the feedback. I know the location where it's from would fit the bird trap as its all salt marshes there, and the old timers would try to remove the raptors when they started eating the muskrats from the traps. So, the handmade wire also makes sense as a hawk or owl isn't fighting much while hanging upside down from a post in the marsh.

Maybe for Falconry?