Gerald White asked:
>...how much power would it take to
> replicate a small birds live song?
A cassette tape machine like the Sony TCM-5000EV can successfully
replicate most bird song via its 3.5" speaker with output rated at
700mW maximum. A more powerful amplified speaker could be useful
because it produces the same 700mW with less distortion.
Many field recordists object to playback as a means to attract a
subject. The sounds you record in response to playback probably will
be angry chip notes as your subject searches for an invisible
adversary.
Using playback is unacceptable in many preserves. Even recording is
forbidden in some locations (I remember a long conversation with
INPARQUE staff at Morrocoy National Park, Venezuela. In their eyes,
using a video camera was OK. But mounting the camera on a tripod
suggested a commercial intent, which required an expensive license.)
--oryoki
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