Talker on a perch (4)
I believe the answer is:
myna
'talker on a perch' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for myna that I've seen before include "Asian bird" , "Bird that's a good mimic" , "Speech-mimicking bird" , "Bird good at mimicry" , "Mimicking bird" .)