Camptostoma obsoletum
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~30% in a week ~60%
The southern beardless tyrannulet (Camptostoma obsoletum) is a small passerine bird in subfamily Elaeniinae of family Tyrannidae, the tyrant flycatchers. It is found in Costa Rica, Panama, in every mainland South American country except Chile, and on Trinidad.
The southern beardless tyrannulet has these 13 subspecies: Several authors have suggested that the southern beardless tyrannulet may be composed of more than one species. Genetic evidence suggests that as many as three may be present. The Clements taxonomy divides the subspecies into two groups within the species.
The southern beardless tyrannulet shares genus Camptostoma with the northern beardless tyrannulet (C. imberbe); they have at times been considered conspecific and together they form a superspecies. The southern beardless tyrannulet is 9.5 to 10.5 cm (3.7 to 4.1 in) long and weighs 7 to 9 g (0.25 to 0.32 oz). It is a small flycatcher with a long pointed warbler-like bill. The sexes have the same... Wikipedia →
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Lima | 🇵🇪 Peru | |
| 2 | Quito | 🇪🇨 Ecuador | |
| 3 | Guayaquil | 🇪🇨 Ecuador | |
| 4 | Porto Alegre | 🇧🇷 Brazil | |
| 5 | Belém | 🇧🇷 Brazil | |
| 6 | Cali | 🇨🇴 Colombia | |
| 7 | Rosario | 🇦🇷 Argentina | |
| 8 | Curitiba | 🇧🇷 Brazil | |
| 9 | Rio de Janeiro | 🇧🇷 Brazil | |
| 10 | Belo Horizonte | 🇧🇷 Brazil |
With luck
About 10% of wildlife watchers report a Southern Beardless-Tyrannulet sighting in São Luís on a given day, based on 6 verified sightings from GBIF citizen-science data. It is the 68th most-seen of the 74 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 60%, if each day is a fresh chance.
February–March, May and July
In those months about 20% of wildlife watchers report a Southern Beardless-Tyrannulet in São Luís on a given day, against about 10% in April, June and August–January, the lowest months. Those are among São Luís's wettest months, with about 220 mm of rain a month against 15 mm in October.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Southern Beardless-Tyrannulet sightings with a recorded time, and nearly all of them come between 6 am and 6 pm: it is a daytime animal.
15th of 38
Of the 38 cities where we can rate Southern Beardless-Tyrannulet sightings, São Luís ranks 15th at about 10%. The best odds are in Lima (Peru, about 40%), Quito (Ecuador, about 40%) and Guayaquil (Ecuador, about 40%).
Same family: Tyrannidae
The closest relatives of the Southern Beardless-Tyrannulet that you can see in São Luís (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 80%), Tropical Kingbird (about 70%) and Fork-tailed Flycatcher (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Southern Beardless-Tyrannulet is recorded against all the birds logged in São Luís (6 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.
