I have a rooster that has been limping around for over a month. His one leg works great, but the other right one sticks straight out and is useless. That foot is not swollen or have any scales or sign of damage. In fact, it happened on the other side, the left one used to stick straight out and he was walking on the right leg. He eats and drinks. seems happy. cannot get up to roost. He goes all over the yard...free run of our whole yard...and he goes there, hopping on one leg. He is strong and always ready to go, but for that leg sticking straight out and being useless. now I went out to let the chickens out this morn and there is another rooster with legs that seem to be failing him. They just seem wobbly underneath him and he sits often and walks kinda squatish. he is eating and drinking well also with no other signs of ailment. what is going on in our coop? The rest of the bunch seem happy and healthy and layers are laying. I know we have rats/mice that have moved in this fall (suggestions on how to get them out with the chickens, dogs and cats running would also be appreciated) e-coli? not enough oyster shells or grit? lymphoma? mareks? any suggestions would be greatly appreciated!!