rs
At 10:15 AM 10/16/02 -0500, you wrote:
>Hi--
>
>Very true about frogs. The intra frequencies become so disorienting
>that I've stood up and started walking in the wrong direction. To my
>ears, with frogs, the distortions are as much or more pronounced with
>tape playback as they were perceived in the field. As for
>grasshoppers and crickets, the distortion would probably also stem
>from complexities in their songs. The closest encounter I've had
>with their singing came from leaving gear in a field for 3 hours.
>Maybe someday, I'll become more accepted by the community nd enjoy a
>closer listen.
>
> From this string, I've gathered that the distortion with crickets and
>grasshoppers is not being widely experienced. This is helpful insight.
>
>Thanks!
>Rob D.
With no intention of starting up the dreaded "ethics of playback", thread .=
. .
During my post-doc work on tracking homing pigeons with radios, in the
1960's, I found myself for many days sitting on the lawns of numerous New
England airports (this is where you could fly pigeons TO, then release them=
and then track them from a ground station yagi, then fly yourself home
again around 6 pm). Much of this time, I was listening to a battery
operated radio receiver, picking up the 52.001 MHz signal from a pigeon,
and swinging the yagi around widlly.
It is the chirping of the receiver from the BFO of the pigeon transmitters=
that is interesting, here.
IT CALLED IN CRICKETS. Usually I took them to be Gryllus or Achaeta. ? ?
You would be concentrating on the pigeon's whereabouts, taking notes, aware=
of the sun and thirst, and you would suddenly realize you were being
stalked, or, actually, the loud speaker was being stalked by these
insects! These stalker nevers uttered a peep - or a stridulation - - that=
I heard. Females? Just another silly note by me.
cheers,
Marty Michener
MIST Software Associates
PO Box 269, Hollis, NH 03049
coming soon : EnjoyBirds - software that migrates with you.
________________________________________________________________________
________________________________________________________________________
|