I just don't understand the appeal of this episode at all.  It's very creepy and the eerie atmosphere is well created, but it's predictable.  Vinette Carroll was very talented, but simply did not have a voice for radio.  It's quite off-putting, to say the least.  The only good thing about this episode is Joan Hackett, who left us far too soon.  I HATE the ear-splitting bird noises!  I almost had to bail the first time I ever heard this one.  I've only listened to it again for Ms. Hackett.