While in Cambridge, one night we heard a bird of some kind fly 
overhead, crossing the Choptank River. It had a two-note call, one 
note sounding like a chirp, the second like a croak. So we heard 
"chirp, croak" a brief pause, then "chirp, croak" etc.

Does anyone know what it might have been?

--Pat

Pat Valdata, Elkton, MD | 
"I love deadlines. I like the whooshing sound they make as they fly by."
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