Upucerthia dumetaria
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
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 |
Possible
About 20% of wildlife watchers report a Scale-throated Earthcreeper sighting in Península Valdés on a given day, based on 100 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 36th most-seen of the 96 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 and November
In those months about 30% of wildlife watchers report a Scale-throated Earthcreeper in Península Valdés on a given day, against about 10% in January to March, the lowest months. June and July have too few records to rate.
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.
Yes
Of the 3 parks where we can rate Scale-throated Earthcreeper sightings, Península Valdés has the highest daily chance: about 20%. Next come Torres del Paine National Park (Chile, about 20%) and Nahuel Huapi National Park (Argentina, under 5%).
Same family: Furnariidae
The closest relatives of the Scale-throated Earthcreeper that you can see in Península Valdés (family Furnariidae, Ovenbirds and Woodcreepers) are Sharp-billed Canastero (about 30%), Plain-mantled Tit-Spinetail (about 20%) and Common Miner (about 20%), 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 Península Valdés (100 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.
