"LeeAnne" wrote in
:


Hi Mark,

Oh yes we have Cicada's but around here they only (as far as I know)
make their noises during the day - that sort of high pitched buzz that
they do. If it were them at night too, I would also imagine I would
hear them in other places besides this area in Mansfield.

Hmmm LeeAnne

You say the interval is 1-2 secs. Do they slow down in these cooler
nights? The temperature can be told by counting the number of chirps in
15 secs and adding 40. That at least will confirm it is a tree cricket.
Perhaps this page might help you?

http://www.naturesongs.com/insects.html