Upucerthia dumetaria
Silhouette: Sheatherius · PhyloPic
In 3 days ~10% in a week ~20%
The scale-throated earthcreeper (Upucerthia dumetaria) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Chile, Peru, and possibly Uruguay. What is now the Patagonian forest earthcreeper (U. saturatior) was considered a fourth subspecies until about 2009.
The scale-throated earthcreeper is 20 to 22 cm (7.9 to 8.7 in) long and weighs 37 to 55.5 g (1.3 to 2.0 oz). It is a large earthcreeper with a long and very decurved bill. The sexes' plumages are alike. Adults of the nominate subspecies have a whitish supercilium on an otherwise grayish white and dark grayish brown face. Their crown is a dull dark grayish brown with some fainter mottling. Their nape, back, rump, and uppertail coverts are uniform dull brownish gray. Their tail's central feathers are dull grayish brown and the rest blackish brown with dull rufous tips; the amount of rufous increases from inner to outer feathers.... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Península Valdés | 🇦🇷 Argentina | |
| 2 | Torres del Paine National Park | 🇨🇱 Chile | |
| 3 | Nahuel Huapi National Park | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report a Scale-throated Earthcreeper sighting in Nahuel Huapi National Park on a given day, based on 30 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 75th most-seen of the 111 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
September
In that month about 20% of wildlife watchers report a Scale-throated Earthcreeper in Nahuel Huapi National Park on a given day, against under 5% in March–June, August and November–January, the lowest months.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Scale-throated Earthcreeper sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 3
Of the 3 parks where we can rate Scale-throated Earthcreeper sightings, Nahuel Huapi National Park ranks 3rd at under 5%. The best odds are in Península Valdés (Argentina, about 20%) and Torres del Paine National Park (Chile, about 20%).
Same family: Furnariidae
The closest relatives of the Scale-throated Earthcreeper that you can see in Nahuel Huapi National Park (family Furnariidae, Ovenbirds and Woodcreepers) are Dark-bellied Cinclodes (about 50%), Thorn-tailed Rayadito (about 40%) and White-throated Treerunner (about 30%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scale-throated Earthcreeper is recorded against all the birds logged in Nahuel Huapi National Park (30 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.
