[Mike Rivers]

bill wrote:

This may be off topic a bit, but what is the best microphone for
listening to outside nature? I would like to put one in a tree on my
property that is usually full of birds and be able to record them onto
my hard drive via my sound card input.

A waterproof dynamic mic. An EV 635 with a condom over it would
probably work pretty well. Hopefully your sound card has a balanced
input so you can avoid the mic cable acting like an antenna.

The speaker trick is pretty clever, but when used as a microphone, it
probably doesn't have very good high frequency response. Birds don't
sing bass.