Azure Kingfisher
Ceyx azureus
The azure kingfisher measures 17–19 cm (6.7–7.5 in) in length, and the male weighs 29–32 g (1.0–1.1 oz) while the female is slightly heavier at 31–35 g (1.1–1.2 oz). It is a very colourful bird, with deep blue to azure back, a large white to buff spot on the side of the neck and throat, rufous-buff with some blue-violet streaks on the breast and flanks. The feet are red with only two forward toes. Voice: The azure kingfisher is usually silent, but makes a sharp, squeaky call when breeding. Its voice is a high-pitched, shrill "pseet-pseet", often in flight.
ID text from Wikipedia, CC BY-SA 4.0
Black-backed Dwarf Kingfisher
Ceyx erithaca
The black-backed dwarf kingfisher is one of the smallest known kingfisher species. It is only slightly larger than a medium-sized hummingbird and measures 12.5–14 cm (4.9–5.5 in) in length (including bill and tail). Females typically weigh 14-16g and males 14-21.5g, making the males slightly larger. The two sexes are otherwise alike and sexual dimorphism is not present.
ID text from Wikipedia, CC BY-SA 4.0
Where you might meet both
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Play today's Daily BirdPhotos and recordings are credited to their authors under the licence shown. Full profiles: Azure Kingfisher and Black-backed Dwarf Kingfisher.