I wouldn't put them in a barrel...spread them out where they aren't touching and let them get air and they will mold less that way. They will drain a lot of fluid as they decompose, so just be aware they will make a mess wherever you place them. Pallets make nice places for pumpkins because the fluids can run out and down, draining away from the gourd.
Thanks again, Bee ! I have a couple old pallets kicking around that are left over from what I used for stacking firewood. I'll put them on that and give them to the girls once in awhile... Although I'm sure they will probably pick at them while out free ranging !
I am not bee but I went thru my neighborhood and picked up every whole pumpkin I found and friends and coworkers brought me theirs. I filled a pallet up 2 layers full of free pumpkins. I threw a tarp over it and gave them one when I remembered, my girls loved them. Some had some black areas where they started to rot but the girls ignored them.
Just remember those seeds will grow in the spring . I pulled hundreds of pumpkin plants that started but I did let some grow and got a few pumpkins from them
Thanks for the info, armorfirelady ! Looks like I'll be doing exactly what you have done according to the pic !