I have three broodies right now, in side by side by side nesting boxes. I get them off their eggs (3 each) every day and check on the eggs. The eggs under one hen are not as warm (I just hold them to my cheek) as the eggs under the other two. This is her second round--her first eggs either broke or were duds. One did hatch about two days after its due date but the chick was weak and didn't make it. This hen definitely acts broody-we have had chickens for 7 years, lots of moms raising chicks (and hens raising ducklings) so I am surprised at this--could she just be broody with a too low body temp? Has anyone heard of this?