April 2nd and the Beagle is swiftly approaching Rio.  Darwin's entry today is a virtual "stew" of pelagic wildlife:

"A rainy, squally morning, very unusual at this time of year in these Latitudes; being now about 130 miles East of Rio. A large flock of Mother Carys chicken are hovering about the stern in same manner as swallows do on a calm summer evening over a lake.