Ptyonoprogne concolor
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~50%
The dusky crag martin (Ptyonoprogne concolor) is a small passerine bird in the swallow family. It is about 13 cm (5 in) long with a broad body and wings, and a short square tail that has small white patches near the tips of most of its feathers. This martin has sooty-brown upperparts and slightly paler underparts. The two subspecies are resident breeding birds in South Asia from the Indian subcontinent to southwestern China and the northern parts of Thailand, Vietnam and Laos.
This martin nests under a cliff overhang or on a man-made structure, building a neat half-cup mud nest with a soft lining. Both adults incubate the two to four eggs and feed the chicks. This species does not form large breeding colonies, but it is more gregarious outside the breeding season. It feeds a wide variety of insects that are caught as the martin flies near to cliff faces. It may be hunted by large bats as well as birds of prey, but its extensive and expanding range and large population mean that there are no significant conservation concerns.
The dusky crag martin was formally described by in 1832 as Hirundo concolor by British soldier and ornithologist William Henry Sykes. It was moved... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Gir National Park | 🇮🇳 India | |
| 2 | Ranthambore National Park | 🇮🇳 India | |
| 3 | Eravikulam National Park | 🇮🇳 India | |
| 4 | Mudumalai National Park | 🇮🇳 India | |
| 5 | Bandipur National Park | 🇮🇳 India | |
| 6 | Satpura National Park | 🇮🇳 India | |
| 7 | Bandhavgarh National Park | 🇮🇳 India | |
| 8 | Periyar National Park | 🇮🇳 India | |
| 9 | Nagarhole National Park | 🇮🇳 India | |
| 10 | Doi Inthanon National Park | 🇹🇭 Thailand | |
| 11 | Jim Corbett National Park | 🇮🇳 India | |
| 12 | Khao Sok National Park | 🇹🇭 Thailand | |
| 13 | Keoladeo National Park | 🇮🇳 India | |
| 14 | Kanha National Park | 🇮🇳 India |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Jodhpur | 🇮🇳 India | |
| 2 | Pune | 🇮🇳 India | |
| 3 | Kalyan-Dombivli | 🇮🇳 India | |
| 4 | Bhopal | 🇮🇳 India | |
| 5 | Nashik | 🇮🇳 India | |
| 6 | Indore | 🇮🇳 India | |
| 7 | Chhatrapati Sambhajinagar | 🇮🇳 India | |
| 8 | Dehradun | 🇮🇳 India | |
| 9 | Nagpur | 🇮🇳 India | |
| 10 | Vadodara | 🇮🇳 India |
With luck
About 10% of wildlife watchers report a Dusky Crag Martin sighting in Vasai-Virar on a given day, based on 125 verified sightings from GBIF citizen-science data. It is the 91st most-seen of the 217 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 30% of wildlife watchers report a Dusky Crag Martin in Vasai-Virar on a given day, against under 5% in February–April, July and September, the lowest months. That is one of Vasai-Virar's wettest months, with about 520 mm of rain against almost none in January.
Between 4 and 7 am
Across all the parks we cover, that three-hour window holds the most Dusky Crag Martin sightings with a recorded time, and about half of them come between 6 am and 6 pm: it is most active around dawn and dusk.
17th of 28
Of the 28 cities where we can rate Dusky Crag Martin sightings, Vasai-Virar ranks 17th at about 10%. The best odds are in Jodhpur (India, about 50%), Pune (India, about 50%) and Kalyan-Dombivli (India, about 40%).
Same family: Hirundinidae
The closest relatives of the Dusky Crag Martin that you can see in Vasai-Virar (family Hirundinidae, Swallows and Martins) are Barn Swallow (about 40%) and Wire-tailed Swallow (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Dusky Crag Martin is recorded against all the birds logged in Vasai-Virar (125 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.
