Did the dinosaurs evolve into birds or crocodiles...or both?

I live in Florida. I've seen Sand Hill Cranes up close. If you look at a Sand Hill Crane, you can SEE that they look like dinosaurs! But crocodiles and alligators have been around for 200 million years or more too. There was a late Cretaceous crocodile, Sarchosuchus Riograndensis, that was 80 feet long! So which are the true descendants of the "terrible lizards," birds or crocodilians...or both? Evolution has branched off many times. It could just as likely have done so after the age of dinosaurs.