@Matisse188 - you didn't mention- have they all been females?Just found another guinea dead. The last one had a necropsy and cause of death was fatty liver disease.
they all eat layer feed which I give to the chickens. And watermelon, which they love.
they free range for about 2 hours a day.
Turns out they are obese weighing in at 8 lbs.
Any ideas on how to get them to loose weight