Hard to be sure from a single pic, but they look like ornamental Cucurbita pepo - mixed bottle and crookneck types. Did they come from a decorative gourd seed mix?
No idea, they come from peoples porches that we get them from who give them to us to feed to our pigs. We get about 3 pickup truck loads every time this year
Nice! Porch to pig pipeline is elite waste management. I’d only watch for heavy mold and any gourds that smell insanely bitter. Otherwise you’re turning porch decor into bacon calories.