What on earth is this grouse up to?? Has this happened to anyone else?? I have a rooster, a mama hen and four of her chicks that are about 10 weeks old or so. They free-range during the day and I lock them up at night. Every once in a while, there is a grouse hanging out with them. Watching it, it seems like the grouse may want to join the flock? But mama hen gets her feathers in a fluff and chases it away if it gets too close to her babies. Originally, it showed up one day with the rooster. Now it waits outside the coop in the morning. This morning I scared it off by accident and the chickens wouldn't come out of the coop right away when I opened the door. Were they scared of the grouse? So, what do you think the grouse is doing? Does it want in the flock? Is it a territorial thing - are my chickens invading it's space? Is it in love with my rooster?