Camptostoma obsoletum
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~20%
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 |
Rare
Under 5% of wildlife watchers report a Southern Beardless-Tyrannulet sighting in Santa Cruz de la Sierra on a given day, based on 10 verified sightings from GBIF citizen-science data. It is the 153rd most-seen of the 208 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
April, July and September
In those months about 10% of wildlife watchers report a Southern Beardless-Tyrannulet in Santa Cruz de la Sierra on a given day, against under 5% in May–June, August and October–March, the lowest months.
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.
33rd of 38
Of the 38 cities where we can rate Southern Beardless-Tyrannulet sightings, Santa Cruz de la Sierra ranks 33rd at under 5%. 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 Santa Cruz de la Sierra (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 50%), Tropical Kingbird (about 30%) and Eastern Kingbird (about 20%), 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 Santa Cruz de la Sierra (10 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.
