Coryphistera alaudina
Silhouette: Sheatherius · PhyloPic
In 3 days ~50% in a week ~80%
The lark-like brushrunner (Coryphistera alaudina) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. The lark-like brushrunner is genetically most closely related to the firewood-gatherer (Anumbius annumbi), and they may be sister species.
The lark-like brushrunner is 15 to 17 cm (5.9 to 6.7 in) long and weighs 27 to 42 g (0.95 to 1.5 oz). It is an unusual furnariid that, as its name implies, resembles a lark with an erect crest. The sexes have the same plumage. Adults of the nominate subspecies have white around their eye that extends onto the ear coverts that are otherwise cinnamon-rufous. Their lores are dull brownish. Their forehead is rufescent brownish and their crown and crest very dark brown. Their back is pale dull brown with vague darker streaks on the upper part that become wider and darker on the lower back, rump, and uppertail coverts. Their crown has narrow blackish... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 2 | Iberá National Park | 🇦🇷 Argentina |
Possible
About 20% of wildlife watchers report a Lark-like Brushrunner sighting in El Impenetrable National Park on a given day, based on 61 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 84th most-seen of the 219 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.
April and October
In those months about 30% of wildlife watchers report a Lark-like Brushrunner in El Impenetrable National Park on a given day, against about 10% in January–March, May and July, the lowest months. December has too few records to rate.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Lark-like Brushrunner sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 2 parks where we can rate Lark-like Brushrunner sightings, El Impenetrable National Park has the highest daily chance: about 20%. Next come Iberá National Park (Argentina, under 5%).
Same family: Furnariidae
The closest relatives of the Lark-like Brushrunner that you can see in El Impenetrable National Park (family Furnariidae, Ovenbirds and Woodcreepers) are Narrow-billed Woodcreeper (about 70%), Rufous Hornero (about 60%) and Sooty-fronted Spinetail (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Lark-like Brushrunner is recorded against all the birds logged in El Impenetrable National Park (61 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.
