Aerodramus fuciphagus
Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic
In 3 days ~40% in a week ~70%
The edible-nest swiftlet (Aerodramus fuciphagus), also known as the white-nest swiftlet, is a small bird of the swift family which is found in Southeast Asia. Its opaque and whitish nest is made exclusively of solidified saliva and is the main ingredient of bird's nest soup, a delicacy of Chinese cuisine. Germain's swiftlet (Aerodramus germani) is now treated as conspecific with this species.
The edible-nest swiftlet was formally described in 1812 by the Swedish naturalist Carl Peter Thunberg under the binomial name Hirundo fuciphaga based on a specimen collected on the island of Java. The specific epithet fuciphaga combines the Ancient Greek φυκος/phukos meaning "seaweed" with -φαγος/-phagos meaning "-eating". The edible-nest swiftlet is now one of 25 swiftlets placed in the genus Aerodramus that was introduced in 1906 by the American ornithologist Harry C. Oberholser.
Eight subspecies are recognised: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Khao Luang National Park | 🇹🇭 Thailand | |
| 3 | Khao Sok National Park | 🇹🇭 Thailand | |
| 4 | Bali Barat National Park | 🇮🇩 Indonesia | |
| 5 | Tanjung Puting National Park | 🇮🇩 Indonesia | |
| 6 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 7 | Kaeng Krachan National Park | 🇹🇭 Thailand | |
| 8 | Kinabatangan Wildlife Sanctuary | 🇲🇾 Malaysia | |
| 9 | Way Kambas National Park | 🇮🇩 Indonesia | |
| 10 | Sepilok | 🇲🇾 Malaysia | |
| 11 | Komodo National Park | 🇮🇩 Indonesia | |
| 12 | Khao Yai National Park | 🇹🇭 Thailand | |
| 13 | Gunung Leuser National Park | 🇮🇩 Indonesia | |
| 14 | Bako National Park | 🇲🇾 Malaysia | |
| 15 | Kerinci Seblat National Park | 🇮🇩 Indonesia | |
| 16 | Danum Valley Conservation Area | 🇲🇾 Malaysia | |
| 17 | Tangkoko Nature Reserve | 🇮🇩 Indonesia | |
| 18 | Kinabalu Park | 🇲🇾 Malaysia | |
| 19 | Doi Inthanon National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Đà Nẵng | 🇻🇳 Vietnam | |
| 2 | Phnom Penh | 🇰🇭 Cambodia | |
| 3 | Ho Chi Minh City | 🇻🇳 Vietnam | |
| 4 | Cần Thơ | 🇻🇳 Vietnam | |
| 5 | Bangkok | 🇹🇭 Thailand | |
| 6 | Yangon | 🇲🇲 Myanmar | |
| 7 | Denpasar | 🇮🇩 Indonesia | |
| 8 | Kuala Lumpur | 🇲🇾 Malaysia | |
| 9 | Hanoi | 🇻🇳 Vietnam | |
| 10 | Yogyakarta | 🇮🇩 Indonesia |
With luck
About 10% of wildlife watchers report a White-nest Swiftlet sighting in Yogyakarta on a given day, based on 17 verified sightings from GBIF citizen-science data. It is the 28th most-seen of the 42 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
January
In that month about 30% of wildlife watchers report a White-nest Swiftlet in Yogyakarta on a given day, against about 10% in February–June and August–November, the lowest months. That is one of Yogyakarta's wettest months, with about 350 mm of rain against 30 mm in August.
Between 1 and 4 am
Across all the parks we cover, that three-hour window holds the most White-nest Swiftlet sightings with a recorded time, and about 6 in 10 of them come between 6 pm and 6 am: it is most active around dawn and dusk.
10th of 14
Of the 14 cities where we can rate White-nest Swiftlet sightings, Yogyakarta ranks 10th at about 10%. The best odds are in Đà Nẵng (Vietnam, about 90%), Phnom Penh (Cambodia, about 80%) and Ho Chi Minh City (Vietnam, about 70%).
GBIF citizen-science records
It is estimated from how often the White-nest Swiftlet is recorded against all the birds logged in Yogyakarta (17 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.
