I have these sand cranes that always come up to our house and we feed them bread they never were aggressive but now one certain one is getting more aggressive. We have a screened porch and they come up to it and there putting holes in it to get our attention and there making like a noise thats not that normal when they see us. The one certain one is getting more aggressive towards the other birds poking on the them and chasing them. There is a group of four and they always stay together. the other three arent as aggressive as the one. He is bigger then the rest of them and is almost like the boss you could mostly tell he was before. He always let the other eat first while he watched around and when we gave them bread he used to be the last one up there now hes the first one there and literally runs to us when he sees us.
Sounds like the aggressive is the Dominate male of the herd. I know you like to feed them but that's what started the problem. He is being Dom so he can get more food and be the first to eat. Once they figure out you're not going to feed them they will go back to behaving normal. These are cool to look at, even though they can get loud sometimes. Have you ever seen tourist feed sea-gulls at the beach. Locals don't do it. Sea Gulls will get as aggresive as the Sand Cranes and actually dive bomb people. Imagine what a Sand Crane can do being what 10 times the size
