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ID tip
The swiftlet is about 11 centimetres (4.3 in) in length with a dark grey-brown head and upperparts. Its throat and upper breast are grey-white with the rest of the underparts darker grey. The tail has a shallow fork and the plumage lacks gloss.
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Mariana Swiftlet
One bar for each month, and every month is filled: this bird is recorded here in all twelve. The wide bar is May, the month with the most records.
Where to see the Mariana 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.
Recorded as a rare visitor in United States, Costa Rica.
About the Mariana Swiftlet
The Mariana swiftlet or Guam swiftlet is a species of swiftlet in the family Apodidae.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Seychelles SwiftletAerodramus elaphrusThe Seychelles swiftlet is a small bird of the swift family.
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