368 
TRELAWNY MOUNTAINS. 
prevalent. My memorandum sets these facts down 
as traits of the ^ Brown Owl,’ this name being used 
to distinguish it from every other Owl. 
A friend gave me a very interesting narrative of a 
benighted traverse that he made of the mountains be- 
tween Manchester and Trelawny, in which the ^ ohoo’ 
moan of an Owl made a part of the night watches. 
He had gained the last and loftiest ridge of the 
intervening highlands, when a moonless but starry 
night, closing in upon him, compelled him to look 
for a convenient tree upon which to settle himself to 
repose. The first sound that saluted him was the 
dismal croak of the Tree-toad at long intervals ; the 
croak near to him being answered by successive and 
repeated croaks more distant. Occasionally was heard 
the vehement hiss of some prowling snake ; he con- 
cluded, our sizeable Boa, the Yellow Snake ; then 
came every now and then the ‘ ohoo ’ moan of some 
Owl, whose voice was quite unknown to him. It was 
replied to by a similar moan afar off. I suspect that 
this was either the Eared or the Brown Owl.” 
As these syllables, however, convey the note of the 
Potoo {Nyctihius Jamaicensis), uttered in the darkness 
of the night as it sits on its lone watchpost, it is 
probable, as my friend afterwards suggested, that 
the voice heard was rather that of this great Nightjar 
than of an Owl. 
GREGARIOUS TREES. 
The overrunning of large tracts of land by some 
particular species of shrub or tree almost to the ex- 
clusion of every thing else is an interesting and 
