The usual technique is to start with the smallest owl call and work
up to biggest. Most of us now use either CD or MP3 player. For my
research work I use a small MP3 player or CD depending on what I am
doing and I have a pretty good Sony mini speaker system. I make my
own recordings and use some freeware/shareware (one such software is
called Audacity at http://audacity.sourceforge.net/) that you can get
online to make the length and repeats I want for each species. I then
burn it to CD or just send them off as MP3 to my player.
That said, I should not fail to mention that repeated playback and
overuse of tapes in one place could interrupt birds and should be discouraged.
Here's an excerpt from the American Birding Association's PRINCIPLES
OF BIRDING ETHICS pertaining to bird photography that might be of interest.
"Everyone who enjoys birds and birding must always respect wildlife,
its environment, and the rights of others. In any conflict of
interest between birds and birders, the welfare of the birds and
their environment comes first."
"CODE OF BIRDING ETHICS"
"1(b) To avoid stressing birds or exposing them to danger, exercise
restraint and caution during observation, photography, sound
recording, or filming."
"Limit the use of recordings and other methods of attracting birds,
and never use such methods in heavily birded areas, or for attracting
any species that is Threatened, Endangered, or of Special Concern, or
is rare in your local area;"
"Keep well back from nests and nesting colonies, roosts, display
areas, and important feeding sites. In such sensitive areas, if there
is a need for extended observation, photography, filming, or
recording, try to use a blind or hide, and take advantage of natural cover."
"Use artificial light sparingly for filming or photography,
especially for close-ups."
For more, see this URL:
Hope this helps.
At 12:01 AM 2/15/2006, you wrote:
>From: Mundi Smithers <[log in to unmask]>
>Subject: Re: FW: eBird Report - Green Mountain Audubon Center , 2/11/06
> Played call-back tapes of Barred Owl which solicited response from
> the Saw-whet; however recorded Saw-whet yielded no response.
>I have wondered for a long time how one does the call-back tape
>thing. Do you make a recording of the call and then play it on a
>regular tape recorder??? If so where do you find the calls and how
>to you get them to repeat? I'm imagining that you would have to
>take a smallish boombox with a tape deck into the woods with
>you. Anyone have any advice or suggestions???
>Mundi in Pownal