Re: microphone for macintosh

["oryoki2000" oryoki2000]

Just to reiterate:

The Griffin iTalk Pro is a $20 microphone for an ipod.

The Griffin iMic 2 is a $35 USB audio interface for a Mac or PC.
The iMic 2 has inputs for microphone or line level, and a line level
output.

Here's another possibility: Purchase an inexpensive recorder like the
Zoom H2 (about $200 with SDHC flash card).  Use the recorder to
capture the birdsong, then transfer the recordings via USB to the
Macintosh.  The pocket-size Zoom H2 will give you many more options
than using your computer as the recording device.  The Zoom H2's
built-in mics sound good, too.

--oryoki