Hi, I was glad to have the camera handy when I saw them all together. The middle one is Panther, he is by far our biggest cat, He is about 18 lbs. To his left is Tuffy {with his new collar}, he is about 11 lbs, Tuffy is not very big but he is heavy for his size and strong as a ox, on the right is Angel at about 9 lbs. Rusty is the next biggest one but he is not as heavy as Panther, I am guessing Rusty is about 13-14 lbs. The bird feeder is right outside this window, thats why they are all in it.