Hawk casualty?

I just received a very disturbing e-mail from a woman I met in the park a couple of weeks ago. She was birding near the Vale of Cashmere and stumbled upon the decomposing remains of what she is convinced is a hawk. I hope that she is wrong. In the spring followers of Santaria sometimes leave unusual offerings at the bases of trees in the park (usually involving chickens or other birds) so I'm keeping my fingers crossed that it's not one of our hawks. If the rain slows down I'll try to find it today.