I have an 11 1/2 month old EE hen that is sitting on todays clutch of eggs. I get about 8-10 eggs per day, all laid in the same nest. This isn't the first time she's done this. She does it pretty often. When I go out to open the run and let them out, she'll go out with the others. That's when I go in and snatch them all. If I don't open the run to let them out, but I come in to visit and check on things she sits there. I can reach for her and she doesn't growl, but just makes her sweet sound she usually makes.
I don't know if she's broody or just practicing, or what. I left the eggs out there today to see what happens. I figure if she's not sitting on them when the sun goes down, she's not going to stay committed to doing so.