From The Perry Mason TV Show Book (Revised)
Bigamy, a double-talking parrot, and a sprinkling of familiar faces spice up this episode. Watch for Edgar Buchanan (Uncle Joe on Petticoat Junction) as Coroner Andy Templet and Joseph Kearns (the perpetually hassled Mr. Wilson on Dennis the Menace) as Edward Langley.
+ EB played "Judge" Edward Daley in "Lurid Letter"/'62. Mike Bedard 6.8.16
Yes, there is a talking parrot in this story, and it does wind up “testifying.” The voice of the parrot is that of Mel Blanc, who also provided the voices for Bugs Bunny, Elmer Fudd, and a host of other Warner Brothers cartoon characters.