In habits the guacharo is wholly nocturnal, slumbering by day in deep and dark caverns which it frequents in vast numbers.
This fat is known by the name of butter or oil (manteca or aceite) of the guacharo.
One afternoon we made an attempt on the other guacharo cave, which lies in the cliff on the landward side of the Monos Boca.
The following morning early we rowed away again, full of longing, but not of hope, of reaching one or other of the guacharo caves.
To go down into the guacharo signifies in their language to die.
We could see into and through the gap in Huevos, through which we had tried to reach the guacharo cave.