Muscisaxicola maculirostris
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~50% in a week ~80%
The spot-billed ground tyrant (Muscisaxicola maculirostris) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina, Bolivia, Chile, Colombia, Ecuador, and Peru and as a vagrant in Brazil.
The spot-billed ground tyrant is 14 to 15.5 cm (5.5 to 6.1 in) long and weighs 11 to 17 g (0.39 to 0.60 oz). The sexes have the same plumage. Adults of the nominate subspecies have an olive-brown crown, a whitish to buffy white supercilium and spot above their lores, a dusky line through the eye, and an olive to gray patch on the ear coverts on an otherwise whitish to dusky face. Their nape and back are olive-brown. Their wing coverts are olive-brown with buff to rufous edges. Their remiges are dusky to brownish with thin pale rufous edges. Their tail is dusky brownish to black with thin whitish or pale yellowish outer webs on the feathers. Their chin and throat are whitish, their breast and belly whitish with... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lauca National Park | 🇨🇱 Chile | |
| 2 | Nahuel Huapi National Park | 🇦🇷 Argentina | |
| 3 | Torres del Paine National Park | 🇨🇱 Chile |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Arequipa | 🇵🇪 Peru |
Possible
About 20% of wildlife watchers report a Spot-billed Ground-Tyrant sighting in Lauca National Park on a given day, based on 176 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 59th most-seen of the 112 birds we can rate there. Over three days the chance rises to about 50%, and over a week to about 80%, if each day is a fresh chance.
August
In that month about 50% of wildlife watchers report a Spot-billed Ground-Tyrant in Lauca National Park on a given day, against under 5% in November and December, the lowest months. That is one of Lauca National Park's driest months, with almost no rain against 150 mm in January.
Between noon and 3 pm
Across all the parks we cover, that three-hour window holds the most Spot-billed Ground-Tyrant sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 3 parks where we can rate Spot-billed Ground-Tyrant sightings, Lauca National Park has the highest daily chance: about 20%. Next come Nahuel Huapi National Park (Argentina, under 5%) and Torres del Paine National Park (Chile, under 5%).
Same genus: Muscisaxicola
The closest relatives of the Spot-billed Ground-Tyrant that you can see in Lauca National Park (genus Muscisaxicola, Ground-Tyrants) are White-fronted Ground-Tyrant (about 60%), Puna Ground-Tyrant (about 60%) and Rufous-naped Ground-Tyrant (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Spot-billed Ground-Tyrant is recorded against all the birds logged in Lauca National Park (176 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.
