Hirundapus cochinchinensis
Silhouette: Aviceda (vectorized by T. Michael Keesey) · PhyloPic
In 3 days <5%
The silver-backed needletail (Hirundapus cochinchinensis) is a species of swift in the family Apodidae. It is found in Southeast Asia, Sumatra, Java and Taiwan. It is a vagrant to Christmas Island. Its natural habitat is subtropical or tropical moist lowland forests. Wikipedia →
Flight call0:16
Taiwan · 1983
© Jelle Scharringa · XC611446 · CC BY-NC-SA 4.0
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cat Tien National Park | 🇻🇳 Vietnam | |
| 2 | Khao Yai National Park | 🇹🇭 Thailand | |
| 3 | Cuc Phuong National Park | 🇻🇳 Vietnam | |
| 4 | Chitwan National Park | 🇳🇵 Nepal | |
| 5 | Namdapha National Park | 🇮🇳 India | |
| 6 | Taroko National Park | 🇹🇼 Taiwan | |
| 7 | Taman Negara National Park | 🇲🇾 Malaysia | |
| 8 | Kaeng Krachan National Park | 🇹🇭 Thailand |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Singapore | 🇸🇬 Singapore |
Rare
Under 5% of wildlife watchers report a Silver-backed Needletail sighting in Singapore on a given day, based on 7 verified sightings from GBIF citizen-science data. It is the 286th most-seen of the 298 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Silver-backed Needletail in Singapore on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Silver-backed Needletail 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 Singapore, in our data
Singapore is the only city on Wallace's Line with enough records to rate Silver-backed Needletail sightings: under 5% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Silver-backed Needletail is recorded against all the birds logged in Singapore (7 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.
