I have a Columbian Wyandotte who was exhibiting broody behavior repeatedly so we finally decided to just let her have a few eggs. We gave her 5. Over the next couple weeks she convinced the other hens to donate 9 more to her incubating clutch. She successfully hatched out 5 and they looked strong. The rest she gave up on after sitting on them for three extra days after the chicks had hatched. She is being a very attentive mother. Now, we had set up an incubator indoors at roughly the same time and got 13 strong chicks out of that effort. They were only a couple days older than the Wyandotte's chicks. About two days after she started parading her chicks through their run, I decided to experiment and offered her a couple "extra babies" to adopt from the incubator batch. She took charge of them instantly, even showing a bit of aggression toward me (very rare for her) as I set them down, presumably because their pitiful peeping prompted some protective instinct in her. Well, that went so well that we gave her a few more. Same response. Now she has ALL of our hatched chicks in her care and seems to doing well thus far. But I am wondering if this might be too much of a burden on a single hen? How many chicks can one hen handle?