Two hawks on a rainy day

Dark clouds didn't make for great pics.  I took photos of a hawk in the tree across the street from our house.  He flew away and then a different hawk came along.  I was able to get the pics during the break in the rain, so the lighting was not good for pics.  I'm not real sure which hawks these are.  I think the first one may be a Cooper's Hawk.  But, the Red Shouldered Hawk, the Cooper's Hawk and the Sharp-Shinned Hawk are all similar.  The similarities between each as a juvenile and an adult are confusing, at least for me.  If you have an opinion on them, feel free to leave comments below!