Zimmerius gracilipes
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~80% in a week >90%
The slender-footed tyrannulet (Zimmerius gracilipes) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Bolivia, Brazil, Colombia, Ecuador, Peru, and Venezuela. The slender-footed tyrannulet was originally described as Tyranniscus gracilipes. Through much of the twentieth century it and several other tyrannulets were kept in genus Tyranniscus but a study published in 1977 erected the present genus Zimmerius for them.
What are now the red-billed tyrannulet (Z. cinereicapilla) and the Guianan tyrannulet (Z. acer) were previously treated as additional subspecies. The slender-footed tyrannulet is 9 to 12 cm (3.5 to 4.7 in) long and weighs 6.6 to 9.5 g (0.23 to 0.34 oz). The sexes have the same plumage. Adults of the nominate subspecies have a gray forehead and crown. They have a thin whitish supercilium that starts at their lores and a dark stripe through the eye on an otherwise yellowish white face. Their back and rump are dull olive. Their wings are dusky with... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brownsberg Nature Park | 🇸🇷 Suriname | |
| 2 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 3 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 4 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 5 | Yasuní National Park | 🇪🇨 Ecuador | |
| 6 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 7 | Manu National Park | 🇵🇪 Peru | |
| 8 | Tambopata National Reserve | 🇵🇪 Peru |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Recife | 🇧🇷 Brazil |
Likely
About 40% of wildlife watchers report a Slender-footed Tyrannulet sighting in Brownsberg Nature Park on a given day, based on 102 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 29th most-seen of the 221 birds we can rate there. Over three days the chance rises to about 80%, and over a week to over 90%, if each day is a fresh chance.
December
In that month about 80% of wildlife watchers report a Slender-footed Tyrannulet in Brownsberg Nature Park on a given day, against about 20% in September, the lowest month. May to July have too few records to rate.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Slender-footed Tyrannulet sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
Yes
Of the 8 parks where we can rate Slender-footed Tyrannulet sightings, Brownsberg Nature Park has the highest daily chance: about 40%. Next come Amacayacu National Natural Park (Colombia, about 20%) and Anavilhanas National Park (Brazil, about 10%).
Same family: Tyrannidae
The closest relatives of the Slender-footed Tyrannulet that you can see in Brownsberg Nature Park (family Tyrannidae, Tyrant Flycatchers) are Rusty-margined Flycatcher (about 40%), McConnell's Flycatcher (about 20%) and Helmeted Pygmy-Tyrant (about 20%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Slender-footed Tyrannulet is recorded against all the birds logged in Brownsberg Nature Park (102 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.
