I can't help with patterns but those sandhill cranes are lovely to look at but murder on the golf course digging everywhere. They also get hit with golf balls. Many times we have to move them with the golf cart before we can play!
They seem to mostly have twins and I love to watch the babies grow up. It's heartbreaking when they only show up with one.
If you could find any crane pattern you could modify the pattern with color or maybe a great blue heron pattern you could modify.
Not much help. Sorry.