Riparia diluta
Silhouette: Andy Wilson · PhyloPic
In 3 days ~20% in a week ~40%
The pale martin or pale sand martin (Riparia diluta) is a small passerine bird in the swallow family. It is found in open habitats such as farmland, grassland and savannah, usually near water. It is found from Central Asia to southeastern China. The species was formerly considered a subspecies of the sand martin.
Rasmussen, P.C., and J.C. Anderton. 2005. Birds of South Asia. The Ripley guide. Volume 2: attributes and status. Smithsonian Institution and Lynx Edicions, Washington D.C. and Barcelona. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gobi Gurvansaikhan National Park | 🇲🇳 Mongolia | |
| 2 | Chitwan National Park | 🇳🇵 Nepal | |
| 3 | Jim Corbett National Park | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Pale Sand Martin sighting in Chengdu on a given day, based on 42 verified sightings from GBIF citizen-science data. It is the 57th most-seen of the 156 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 40%, if each day is a fresh chance.
February
In that month about 20% of wildlife watchers report a Pale Sand Martin in Chengdu on a given day, against under 5% in May to October, the lowest months. That is one of Chengdu's driest months, with about 15 mm of rain against 270 mm in August.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Pale Sand Martin sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 4
Of the 4 cities where we can rate Pale Sand Martin sightings, Chengdu ranks 3rd at about 10%. The best odds are in Jinhua (China, about 20%) and Chongqing (China, about 10%).
GBIF citizen-science records
It is estimated from how often the Pale Sand Martin is recorded against all the birds logged in Chengdu (42 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.
