They are small, reddish-brown owls with large, round heads, yellow eyes, black beaks, and feathered feet. The saw-whet’s call is a mellow, whistled note repeated mechanically, which sounds like ...

Researchers think the dark owl eyes on its wings are a case of camouflage ... They have horns on their heads and small forked tails, resembling huge slugs with black spikes along the spine. The ...