Hi there. I have been birding most of my life and am currently a grad student working on a bird migration study. "A bird does not sing because it has an answer. It sings because it has a song."
skyefeather answered:
i’m constantly finding more, but Gyrfalcon, Barn Owl, Raven, Jackdaw, Blue Jay, Swallowtail Kite and Loon are currently some of mine now (: