When we stayed at my parents' house in Florida, we heard the Sandhill Cranes calling a lot, but didn't get to see them that often. Here's a shot of them fairly close.
They're pretty big birds. Probably up to my shoulder when they're standing upright.
They're protected in Florida, but I've read that they are hunted in other states.
Hearing them warble in the morning as the sun was rising made me feel like I was in Africa.