One of the Gualala Bald Eagles eating a…???

Rick Denniston photographed this Bald Eagle eating what looks like a large lizard. The light wasn't good for the photo, Rick said.

I sent Rick's photo to reptile expert Gary Nafis. He wrote,

"I don't know what it is. I'm not sure it's a lizard, and I don't think it's the tail end of a snake. I can't see any legs and the light thing hanging down over the branch doesn't look like one. The largest lizards in your area are alligator lizards, but if an eagle's talons are two inches long as I've read, then it's too large to be an alligator lizard. If it is a lizard, it would have to be an escaped pet. If it's a rodent, I don't think the eagle would be eating the tail end. Raptors have been seen eating salamanders, too, but the tail is also wrong for a giant salamander."
Do you have any idea what the Bald Eagle is eating?
Thanks to Rick for allowing me to share his photo with you here.
Ooo, we are having wild weather - rain, hail, sunshine, more rain hail, sunshine...a wait five minutes kind of day. We had a 1/2 inch of rain this morning in a short period of time. More coming in late this afternoon.