An encouraging bird? (4)
I believe the answer is:
dodo
This could be a double definition.
'an encouraging' is the first definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'bird?' is the second definition.
(dodo is a kind of bird)
Can you help me to learn more?
(Other definitions for dodo that I've seen before include "Flightless bird, extinct since the 17th century" , "Old bird" , "Square" , "Large extinct bird" , "Idiot" .)