My girls love pumpkin guts, but only if they are removed from the pumpkin entirely. They won't touch the pumpkin with a ten foot pole. In fact, they seem to like the pumpkin guts the best if I microwave them for a minute or so to partially cook them.
I left the one pumpkin I managed to grow as ornamentation near my coop and my guineas/chickens HACKED through it (it was not carved) and demolished the entire pumpkin, seeds and all. I could see peck marks in the few pieces they left - took only about two days for them to eat it all!