Melanopareia maximiliani
Silhouette: Sheatherius · PhyloPic
In 3 days <5%
The olive-crowned crescentchest (Melanopareia maximiliani) is a species of bird in the family Melanopareiidae. It is found in Argentina, Bolivia, and Paraguay. The crescentchests (genus Melanopareia) were previously included in family Rhinocryptidae, the tapaculos. A 2010 publication confirmed earlier work and created their present genus. The last has been suggested as a separate species due to vocal differences. In addition, a subpopulation of M. m. pallida might be an undescribed taxon.
The olive-crowned crescentchest is 15 cm (5.9 in) long. Males weigh 17.1 to 18.0 g (0.60 to 0.63 oz), one female weighed 16.7 g (0.59 oz), and unsexed specimens weighed 16.9 to 18.2 g (0.60 to 0.64 oz). The nominate subspecies' crown and upperparts are olive-brown, the throat deep buff, and the chest and belly ochraceous. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Impenetrable National Park | 🇦🇷 Argentina |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Cordoba | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report an Olive-crowned Crescentchest sighting in Cordoba on a given day, based on 5 verified sightings from GBIF citizen-science data. It is the 170th most-seen of the 176 birds we can rate there. Over three days the chance rises to under 5%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report an Olive-crowned Crescentchest in Cordoba 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 Olive-crowned Crescentchest sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Only Cordoba, in our data
Cordoba is the only city on Wallace's Line with enough records to rate Olive-crowned Crescentchest sightings: under 5% of wildlife watchers there report one on a given day.
Same order: Passeriformes
The closest relatives of the Olive-crowned Crescentchest that you can see in Cordoba (order Passeriformes, Perching Birds) are Great Kiskadee (about 90%), Rufous Hornero (about 90%) and Brown Cacholote (about 70%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Olive-crowned Crescentchest is recorded against all the birds logged in Cordoba (5 verified sightings), 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.
