For a supposedly knowledgeable and proficient bird photographer, I am a lousy birder. I am the first to admit that. My ability to match bird calls with birds is frankly dismal. I have friends that can identify over 500 birds by call. I am more of a visual than auditory person and don't think I will ever approach a fraction of that.
Never come down?
I saw this snippet at Interesting facts regarding the Alpine Swift, a bird that even sleeps in the air.