Sittasomus griseicapillus
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The olivaceous woodcreeper (Sittasomus griseicapillus) is a passerine bird in subfamily Dendrocolaptinae of the ovenbird family Furnariidae. It is found from central Mexico south through every Central American country, on the island of Tobago, and in every mainland South American country except Chile, French Guiana, and Suriname.
The olivaceous woodcreeper is the only member of genus Sittasomus. However, taxonomic systems vary in their treatment of the taxon, with some splitting it into two species. The International Ornithological Committee and the Clements taxonomy assign these 15 subspecies to the olivaceous woodcreeper; Clements distributes them among five groups.
"Grayish" group "Pacific" Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Campo Grande | 🇧🇷 Brazil | |
| 2 | Recife | 🇧🇷 Brazil | |
| 3 | Curitiba | 🇧🇷 Brazil | |
| 4 | Caracas | 🇻🇪 Venezuela | |
| 5 | Rio de Janeiro | 🇧🇷 Brazil | |
| 6 | Maceió | 🇧🇷 Brazil | |
| 7 | Belo Horizonte | 🇧🇷 Brazil | |
| 8 | São Paulo | 🇧🇷 Brazil | |
| 9 | Brasilia | 🇧🇷 Brazil | |
| 10 | Porto Alegre | 🇧🇷 Brazil |
Rare
Under 5% of wildlife watchers report an Olivaceous Woodcreeper sighting in Arenal Volcano National Park on a given day, based on 112 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 351st most-seen of the 503 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report an Olivaceous Woodcreeper in Arenal Volcano National Park on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Olivaceous Woodcreeper sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
51st of 52
Of the 52 parks where we can rate Olivaceous Woodcreeper sightings, Arenal Volcano National Park ranks 51st at under 5%. The best odds are in Serra dos Órgãos National Park (Brazil, about 60%), Itatiaia National Park (Brazil, about 50%) and Amboró National Park (Bolivia, about 50%). All parks ranked.
Same family: Furnariidae
The closest relatives of the Olivaceous Woodcreeper that you can see in Arenal Volcano National Park (family Furnariidae, Ovenbirds and Woodcreepers) are Wedge-billed Woodcreeper (about 30%), Streak-headed Woodcreeper (about 20%) and Spotted Woodcreeper (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Olivaceous Woodcreeper is recorded against all the birds logged in Arenal Volcano National Park (112 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.
