Notiochelidon murina
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
The brown-bellied swallow (Orochelidon murina) is a species of bird in the family Hirundinidae, the swallows and martins. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. The brown-bellied swallow was originally described as Petrochilidon murina. Since then it had been placed in both Notiochelidon and Atticora. Following a study published in 2005 it was moved to the resurrected genus Orochelidon that had been erected in 1903.
The brown-bellied swallow shares genus Oroichelidon with the pale-footed swallow (O. flavipes) and Andean swallow (O. andecola). The brown-bellied swallow is about 14 cm (5.5 in) long and weighs about 12.5 g (0.44 oz). The sexes have similar plumage though females are duller overall than males. Adult males of the nominate subspecies have a mostly blackish head and neck with a blue-green gloss and a sooty gray-brown throat. Their upperparts are blackish with a blue-green gloss. Their tail is moderately forked; it and their wings are dark brown... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Los Nevados National Natural Park | 🇨🇴 Colombia | |
| 2 | Chingaza National Natural Park | 🇨🇴 Colombia | |
| 3 | Podocarpus National Park | 🇪🇨 Ecuador | |
| 4 | Farallones de Cali National Natural Park | 🇨🇴 Colombia |
Rare
Under 5% of wildlife watchers report a Brown-bellied Swallow sighting in Farallones de Cali National Natural Park on a given day, based on 11 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 460th most-seen of the 542 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 Brown-bellied Swallow in Farallones de Cali National Natural Park on a given day, so our monthly data shows no clear season.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Brown-bellied Swallow sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 parks where we can rate Brown-bellied Swallow sightings, Farallones de Cali National Natural Park ranks 4th at under 5%. The best odds are in Los Nevados National Natural Park (Colombia, about 40%), Chingaza National Natural Park (Colombia, about 40%) and Podocarpus National Park (Ecuador, about 10%).
GBIF citizen-science records
It is estimated from how often the Brown-bellied Swallow is recorded against all the birds logged in Farallones de Cali National Natural Park (11 verified sightings from 2019 to 2026), 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.
