Pam, are you looking to seed a chicken run, or a decimated lawn? If the former, might I suggest a deep litter run for your chook's dining pleasure! If your lawn, I suggest that you buy what ever mix is recommended for your area. When you buy the seed, be sure to let the sales person know that you need a turf that will stand up to a lot of traffic. In your DL run, you may want to make some grow frames. On your lawn, you will need to limit the bird's access to it if you want a nice lawn. You will certainly need to block them out of the newly seeded area b/c they will eat all the seed before it has a chance to sprout. Even then... your lawn may suddenly sprout deep craters where they have been able to get beak and claw through the turf to create their dust bowl craters.