Some do especially if they are encouraged by keeping them locked in until after they are done laying for the day.
We only lock them in at night. They free range during the day, but come back to their coop to lay! They have been laying for about four weeks, so they may change it up. We have never found a nest nor seen them exhibit behaviour that implies they are even trying to nest elsewhere. We only have three acres, so it's easy to keep tabs on them.
Almost all of my guineas would lay inside the coop in community nests but there were always a few young rebels every spring who would make nests down the road in a ditch or in the garden...usually in a big patch of butternut squash
That’s our holy grail... Much of our problems with guineas have to do with wild nests. Last year, wild nests were on our property, but brought in many predators, who both ate eggs (including fake eggs!) and also stayed around to eat our poultry... We finally got them to accept a nest in our coop last year by penning them for two weeks. This year, early nests guineas lead the flock off our property where they were hit by cars. We made new nest boxes and locked all guineas up in coop and temporary run. It’s been several weeks, and we are getting eggs on the coop floor, but they are so far rejecting our nest boxes, which I tried to model after their wild nests, with two entrances and covered area...
That’s awesome! We used a kitty litter box on its side, behind a garbage can, in the coop last year. It took them awhile, but once they accepted it, they were quite dedicated. Not so great with the keets though - had to brood the sole survivor ourselves and hatch the remaining eggs, something like 50 out of 150 eggs hatched after they broke some eggs and covered the rest of the eggs with gunk.
