Okay, here's the situation from our 1992 trip.
It can't be Discovery Island since we never went there so I'm thinking it's the pre-show area of the Tiki Birds perhaps or ?
Any other places with live birds inside?
Could it have been at the Polynesian ceremonial house lobby area? We were staying there. And it looks like it was taken from above looking down which would have fit that scenario especially with all the foliage.