I have a Sierra saw that I keep in my fanny pack thats a branch pruner/rib cage/pelvic bone cutter. It works great! I've had it for 10-15 years.
Goes through hair,bone wood like cheese cake.
The teeth on it are wicked and brother it cuts.
My buddy uses loppers but these aren't too portable to carry for where I hunt.
Also, the Sierra Saw by Coglan is only $10 in Cabelas catalog---great buy.