Migration time for Long Beach in September and this Greater Yellowlegs is no exception. He was the only one on the beach of his kind, but he was keeping pace with several of the other peeps. One thing that is always hard to do with this bird is tell is the difference from its very close cousin the lesser yellowlegs. Some indicators include, size, bill shape and length, primary feather projection past tail. The size is very simple to use when there are mixed flocks of the bird. The Greater is obviously bigger by a half at least. The bill is slightly upturned and at least 1.5 times the length of the head in the larger bird..