I agree ridge runner...i dont like to call them while they are still in the tree, but my buddy an i had some success once doing it this way:
we tree yelped to him until he flew down. after he flew down we used our wing to simulate the hen flying down. yelped then purred and purred and purred then started purring softer so he thought the hen was leaving....he came right in and made for a great supper.