Well, I searched through my encyclopedia of mythology, and found a interesting little myth on Stymphaleian Birds. They had iron and brass wings, and shot their feathers like arrows. They happly roosted in the swamp of Stymphale until a lunatic named Hercules was ordered to scare them away with cymbols as one of his labors. They were thus forced to move on to a far away island and were protected by the war god Aries. And this is how wildlife conservation was born:) I took alot of artistic licence with this, since the original birds were more ibis like, and I don't think that globe trees grow in Stymphale. This is a unfinished drawing of a female bird since males have bright brass beaks and wings while females have iron. Also males have a bigger crest. Clash cymbols at your own risk!