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The Christmas Island swiftlet is a small swiftlet some 9–11 cm (3.5–4.3 in) in length. It is mainly glossy blue-black or green-black above, with dark grey underparts relieved by a prominent white belly and vent.
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Christmas Swiftlet
One bar for each month. Filled bars are the 6 months with records; pale bars are months with none. The wide bar is November, the month with the most records.
Where to see the Christmas Swiftlet
The map shades 2 countries with regular records, and 2 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.
About the Christmas Swiftlet
The Christmas Island swiftlet, also known as the Christmas glossy swiftlet or the Christmas cave swiftlet, is a small bird in the swift family Apodidae. It is endemic to Christmas Island, an Australian territory in the eastern Indian Ocean. It was formerly commonly treated as a subspecies of the glossy swiftlet.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Bornean SwiftletCollocalia dodgeiAt about 10 cm in length it is a tiny swiftlet with relatively short wings and a square tail.
Tenggara SwiftletCollocalia sumbawaeThe Tenggara swiftlet is 9–10 cm (3.5–3.9 in) in length with a square tail.
Satin SwiftletCollocalia uropygialisThe satin swiftlet is around 10 cm (4 in) in length.
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