Aerodramus vanikorensis
Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~70% in a week ~90%
The uniform swiftlet (Aerodramus vanikorensis), also known as the Vanikoro swiftlet or lowland swiftlet, is a gregarious, medium-sized swiftlet with a shallowly forked tail. The colouring is dark grey-brown, darker on the upperparts with somewhat paler underparts, especially on chin and throat. This species is widespread from the Philippines through Wallacea, New Guinea and Melanesia. It forages for flying insects primarily in lowland forests and open areas. It nests in caves where it uses its sense of echolocation, rare in birds, to navigate.
The uniform swift was formally described in 1832 by the French naturalists Jean Quoy and Joseph Gaimard from a specimen collected on the island of Vanikoro in the Solomon Islands. They coined the binomial name Hirundo vanikorensis. This swiftlet is now placed in the genus Aerodramus that was introduced in 1906 by Harry C. Oberholser. Wikipedia →
Flight call0:08
Solomon Islands · 2015
© Frank Lambert · XC290255 · CC BY-NC-ND 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Raja Ampat | 🇮🇩 Indonesia | |
| 2 | Tangkoko Nature Reserve | 🇮🇩 Indonesia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Makassar | 🇮🇩 Indonesia |
Possible
About 30% of wildlife watchers report a Uniform Swiftlet sighting in Makassar on a given day, based on 29 verified sightings from GBIF citizen-science data. It is the 11th most-seen of the 66 birds we can rate there. Over three days the chance rises to about 70%, and over a week to about 90%, if each day is a fresh chance.
Between 2 and 5 pm
Across all the parks we cover, that three-hour window holds the most Uniform Swiftlet sightings with a recorded time, and about 6 in 10 of them come between 6 am and 6 pm: it is seen both by day and at night.
Only Makassar, in our data
Makassar is the only city on Wallace's Line with enough records to rate Uniform Swiftlet sightings: about 30% of wildlife watchers there report one on a given day.
Same genus: Aerodramus
The closest relatives of the Uniform Swiftlet that you can see in Makassar (genus Aerodramus, Dark Swiftlets) are Halmahera Swiftlet (about 20%) and White-nest Swiftlet (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Uniform Swiftlet is recorded against all the birds logged in Makassar (29 verified sightings), calibrated against known sighting rates. Figures are rounded to the nearest 10% because citizen-science data supports honest approximations, not decimals, and months with records from fewer than five people show "—". How it works.
