Yes, it shares the name of a bird. Each component is made up of the appropriate letters and pictures the theme. I still have a couple of ??s 34 and 38 down. Pretty sure I have all the letters from the crossing words and (I think) the clash in 34 but can't find words in Chambers that fit/make sense. Also puzzled by the spare letter in 42d...'z'? But can't yet see how it fits as a type of the themed word. Any hints gratefully received!