The deer in the June 22 picture is young, maybe 2 1/2 the one under the feeder is an older deer, thicker chest and neck. In the bottom picture he appears to have a flat back and belly, butI'll be surprised if he is over 4 1/2. I'm not sure the bottom two pictures are of the same deer.. You will hunt a lot of days before you kill nothing but 5 1/2 year old bucks. Check with the Quality Deer Management Association www.qdma.com website, they should have some charts, etc that will be useful. Their magazine lately has been having a "age this buck" section every month. I personally wouldn't hunt under those age limits.