Hemiprocne mystacea
Silhouette: Sheatherius · PhyloPic
In 3 days ~80% in a week >90%
The moustached treeswift (Hemiprocne mystacea) is a species of bird in the family Hemiprocnidae. It is found in the northern Moluccas, New Guinea, Bismarck and the Solomon Islands archipelagos. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical mangrove forests, and subtropical or tropical moist montane forests.
The moustached treeswift is known for its remarkable aerial foraging abilities. Recent scientific studies, such as Rohwer and Wang's quantitative analysis in 2010, have highlighted the unique feather replacement patterns that contribute to its agile flight and successful prey capture. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Raja Ampat | 🇮🇩 Indonesia |
More parks will be added in future updates.
Likely
About 40% of wildlife watchers report a Moustached Treeswift sighting in Raja Ampat on a given day, based on 540 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 23rd most-seen of the 200 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
May and August
In those months about 60% of wildlife watchers report a Moustached Treeswift in Raja Ampat on a given day, against about 10% in January, the lowest month.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Moustached Treeswift sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Raja Ampat, in our data
Raja Ampat is the only park on Wallace's Line with enough records to rate Moustached Treeswift sightings: about 40% of wildlife watchers there report one on a given day.
Same order: Apodiformes
The closest relatives of the Moustached Treeswift that you can see in Raja Ampat (order Apodiformes, Swifts and Hummingbirds) are Glossy Swiftlet (about 40%) and Uniform Swiftlet (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Moustached Treeswift is recorded against all the birds logged in Raja Ampat (540 verified sightings from 2019 to 2026), 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.
