The
Azure Kingfisher Alcedo azurea is a small
kingfisher (17-19 cm), in the
river kingfisher family,
Alcedinidae. It is found in Northern and Eastern
Australia and
Tasmania, as well as the lowlands of
New Guinea and neighbouring islands, and out to
North Maluku and
Romang.
It is a very colourful bird, with deep blue to azure back, a large white to buff spot on side of neck and throat, rufous-buff with some blue-violet streaks on breast and flanks. The feet are red with only two forward toes. The lores (the region between the eye and the bill) are white and inconspicuous except in front view, where they stand out as two large white eye-like spots which may have a role in warding off potential predators.
The
subspecies differ only in minor details.
ruficollaris is smaller, brighter, and has more blue on the flanks.
diemenensis is rather large, short-billed, and has a distinctly darker crown.
lessoni is more contrasting, with little blue on the flanks.
affinis has a red billtip, as has the smaller
yamdenae, and
ochrogaster is very pale below. Still, there is very little intergradation in the areas where subspecies meet. Comparing subspecific variation with climate data, the former's pattern does not follow and in some instances runs contrary to
Bergmann's Rule and
Gloger's Rule.(Schodde & Mason 1976, Woodall 2001)
The contact zone between the mainland Australian subspecies is along the east coast of
Far North Queensland, between
Cairns and
Princess Charlotte Bay (Schodde...
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