Publication

SEXUAL DIMORPHISM IN THE BLUE BONNET

Posted:	25/09/2021
Author(s):	Leo Joseph

A plumage character traditionally regarded as a subspecific character of the so-called Red-vented Blue Bonnet Northiella haematogaster haematorrhous actually occurs most prominently in males of eastern populations of N. haematogaster, i.e. generally, those east of 147"E. It is readily observable in the field.

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