I had guineas until a neighbors dog attacked my flock last year. Boy, those birds are dumb. If a tree was between them, they would squawk like crazy. I never saw them lay eggs, and they were 4 years old.
I grew up with guineas, chickens,geese and ducks, and sometimes rabbits. Our guineas made nests on the ground which was where they laid their eggs.
The onions I have that are winter hardy etc - have always been called winter onions in my family- they have the bulblets on top of the by then hot hollow stems. They would die down in late summer, and come up again in the fall, and then were just like scallions. Sweet and not hot. The tall stems flop over and the bulblets sprout roots and start a whole new plant.