Ageing and Moult Variations in Mistletoebirds

Three age classes of Mistletoebirds Dicaeum hirundinaceum are defined and data are presented which allow most Mistletoebirds to be separated by plumage characteristics into one of these age classes. Most (30 of 44 = 68%) male Mistletoebirds shed the tertial flight feathers and the greater median and lesser coverts of the wing during post-juvenile moult. The remaining birds showed a variety of moult patterns.

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