The Whitehead (Mohoua albicilla) or Pōpokotea is a small species ( 15 cm in length, 18.5/14.5 g.) of passerine bird endemic to New Zealand. It is currently classified in the family Mohouidae. The male Whitehead's upperparts, wings and tail are a pale brown in colour, while the head and underparts are white -in the case of the former an almost pure white in colour. Females and juveniles have similar colouration except that the nape and crown (top...