Ptyonoprogne rupestris
Silhouette: Sheatherius · PhyloPic
In 3 days ~30% in a week ~50%
The Eurasian crag martin or just crag martin (Ptyonoprogne rupestris) is a small passerine bird in the swallow family. It is about 14 cm (5.5 in) long with ash-brown upperparts and paler underparts, and a short, square tail that has distinctive white patches on most of its feathers. It breeds in the mountains of southern Europe, northwestern Africa and across the Palearctic. It can be confused with the three other species in its genus, but is larger with brighter tail spots and different plumage tone. Many European birds are resident, but some northern populations and most Asian breeders are migratory, wintering in northern Africa, the Middle East or India.
The Eurasian crag martin builds a nest adherent to the rock under a cliff overhang or increasingly onto a man-made structure. It makes a neat half-cup mud nest with an inner soft lining of feathers and dry grass. Nests are often solitary, although a few pairs may breed relatively close together at good locations. Two to five brown-blotched white eggs are incubated mainly by the female, and both parents feed the chicks. This species does not form large breeding colonies, but is gregarious outside the breeding season. It feeds on a wide variety of insects that it catches with its beak while flying near to cliff faces or over streams and alpine meadows. Adults and young may be hunted and eaten by birds of prey or corvids, and this species is a host of blood-sucking mites. With its large, expanding range and large population, there are no significant conservation concerns involving the species.
This bird is closely related to the other three crag martins which share its genus, and has sometimes been considered to be the same species as one or more of them, although it appears that there are areas where two species' ranges overlap without hybridisation occurring. All four Ptyonoprogne crag martins are quite similar in behaviour to other Old World swallows that build mud nests, and are sometimes subsumed into the larger genus Hirundo, but this approach leads to inconsistencies in classifying several other genera, particularly the house martins. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Vanoise National Park | 🇫🇷 France | |
| 2 | Gobi Gurvansaikhan National Park | 🇲🇳 Mongolia | |
| 3 | Monfragüe National Park | 🇪🇸 Spain | |
| 4 | Aigüestortes National Park | 🇪🇸 Spain | |
| 5 | Picos de Europa National Park | 🇪🇸 Spain | |
| 6 | Ordesa y Monte Perdido National Park | 🇪🇸 Spain | |
| 7 | Hohe Tauern National Park | 🇦🇹 Austria | |
| 8 | Cévennes National Park | 🇫🇷 France | |
| 9 | Mercantour National Park | 🇫🇷 France | |
| 10 | Pyrénées National Park | 🇫🇷 France | |
| 11 | Ecrins National Park | 🇫🇷 France | |
| 12 | Hemis National Park | 🇮🇳 India | |
| 13 | Sierra Nevada National Park | 🇪🇸 Spain | |
| 14 | Jiuzhaigou National Park | 🇨🇳 China | |
| 15 | Sierra de Guadarrama National Park | 🇪🇸 Spain | |
| 16 | Doñana National Park | 🇪🇸 Spain | |
| 17 | Triglav National Park | 🇸🇮 Slovenia | |
| 18 | Camargue | 🇫🇷 France |
With luck
About 10% of wildlife watchers report a Eurasian Crag Martin sighting in Barcelona on a given day, based on 847 verified sightings from GBIF citizen-science data. It is the 49th most-seen of the 215 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.
January
In that month about 20% of wildlife watchers report a Eurasian Crag Martin in Barcelona on a given day, against about 10% in February to December, the lowest months.
Between 11 am and 2 pm
Across all the parks we cover, that three-hour window holds the most Eurasian Crag 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 16
Of the 16 cities where we can rate Eurasian Crag Martin sightings, Barcelona ranks 3rd at about 10%. The best odds are in Riyadh (Saudi Arabia, about 20%) and Porto (Portugal, about 10%).
Same family: Hirundinidae
The closest relatives of the Eurasian Crag Martin that you can see in Barcelona (family Hirundinidae, Swallows and Martins) are Barn Swallow (about 30%) and House Martin (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Eurasian Crag Martin is recorded against all the birds logged in Barcelona (847 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.
