Furnarius cristatus
Silhouette: Abraão B. Leite · PhyloPic
In 3 days ~40% in a week ~70%
The crested hornero (Furnarius cristatus) is a species of bird in the Furnariinae subfamily of the ovenbird family Furnariidae. It is found in Argentina, Bolivia, and Paraguay. The crested hornero is most closely related to the rufous hornero (F. rufus), and they may be sister species. The crested hornero is monotypic.
The crested hornero is 14 to 15 cm (5.5 to 5.9 in) long and weighs 26 to 29 g (0.92 to 1.0 oz). It is a small hornero with the shortest bill of its genus. Its most distinctive feature is its crest, which is also unique among horneros. The sexes' plumages are alike. Adults have a faint pale supercilium and dull brownish malar area and ear coverts; the last have indistinct darker edges. Their forehead is rufescent and their crown and its crest duller clay-brown. Their back and rump are dull tawny-rufous and their uppertail coverts are rufous. Their tail's central pair of feathers are dull rufous and the rest brighter rufous. Their wing coverts and flight feathers are mostly dull tawny-brown with rufous edges on the latter. Their throat is whitish, their breast tawny, and their belly and flanks a deeper tawny with a whitish... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Impenetrable National Park | 🇦🇷 Argentina |
More parks will be added in future updates.
Possible
About 20% of wildlife watchers report a Crested Hornero sighting in El Impenetrable National Park on a given day, based on 45 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 107th most-seen of the 219 birds we can rate there. Over three days the chance rises to about 40%, and over a week to about 70%, if each day is a fresh chance.
April and July
In those months about 30% of wildlife watchers report a Crested Hornero in El Impenetrable National Park on a given day, against under 5% in November, the lowest month. December has too few records to rate.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Crested Hornero sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only El Impenetrable National Park, in our data
El Impenetrable National Park is the only park on Wallace's Line with enough records to rate Crested Hornero sightings: about 20% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Crested Hornero is recorded against all the birds logged in El Impenetrable National Park (45 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.
