Darwin made a famous study of these birds, but not the purple species, New Hampshire's state bird
[DOC] [TLE] Morbid Anatomy: February 2014 [PAR] Feb 1, 2014 ... Death in a Nutshell: Frances Glessner Lee and the Nutshell Studies of 
Unexplained ... who in middle age was commissioned by the New Hampshire 
State Police, ... and iridescent green/black/purple plumage, these are very 
special birds!