State bird of Hawaii (4)
I believe the answer is:
nene
'state bird of hawaii' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for nene that I've seen before include "River of Peterborough; goose" , "River navigable to Northampton" , "Flower" , "Northants river" , "Hawaiian goose; English river" .)