An exceptional person, bloody Dicky! (4,4)

I believe the answer is:
rare bird
'an exceptional person' is the definition.
(I've seen this in another clue)
'bloody dicky' is the wordplay.
'bloody' becomes 'rare' (I've seen this before).
'dicky' becomes 'bird' (I can't justify this - if you can you should give a lot more credence to this answer).
'rare'+'bird'='RARE BIRD'
Can you help me to learn more?
(Other definitions for rare bird that I've seen before include "Exceptional person" , "Exceptional thing" , "Unusual type" , "the talking point of twitchers?" .)
