For good reason, birds are emblematic of the morning — that's when many are most vocal — but some species find their voice after dark, and listening to these birds chirping at night can be a uniquely enchanting (or eerie) experience. Why do birds sing at night? Some species, like the Eastern Whip-poor-will, are nocturnal … Continue reading Singing in the Dark: 7 of the Most Captivating Nighttime Songsters in the U.S.