 King Friday XIIIs two wooden birds on a stick are named Troglodytes  aedon and Mimus polyglottos (the scientific names, in genus and  species, of the ghouse wren and mockingbird). Mimus appeared first  in Episode #20 from 1968 and again in Show #63. Troglodytes aedon  was introduced in Show #1285 from 1973. After Show #1307, also in  1973, Mimus Polyglotts was not seen again until Episode #1591 in May  1988.