Riparia diluta
Silhouette: Andy Wilson · PhyloPic
In 3 days ~40% in a week ~70%
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 Chongqing on a given day, based on 16 verified sightings from GBIF citizen-science data. It is the 33rd most-seen of the 65 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 40% of wildlife watchers report a Pale Sand Martin in Chongqing on a given day, against about 10% in February–April, June–August and October, the lowest months. That is one of Chongqing's driest months, with about 20 mm of rain against 210 mm in June. September has too few records to rate.
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.
2nd of 4
Of the 4 cities where we can rate Pale Sand Martin sightings, Chongqing ranks 2nd at about 10%. The best odds are in Jinhua (China, about 20%).
Same family: Hirundinidae
The closest relatives of the Pale Sand Martin that you can see in Chongqing (family Hirundinidae, Swallows and Martins) are Barn Swallow (about 50%) and Eastern Red-rumped Swallow (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Pale Sand Martin is recorded against all the birds logged in Chongqing (16 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.
