Pin Feathers On Crest

Actually, I had no idea what pin feathers were until I tried to figure out the black/white spikes on the Cardinal's crest. According to AI: A black-and-white, spiked pin feather is a new feather growing in, encased in a protective sheath of keratin. The colors indicate the feather's maturity, while the spiky appearance is normal during the molting process

Done