Zimmerius gracilipes
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~30% in a week ~60%
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 |
With luck
About 10% of wildlife watchers report a Slender-footed Tyrannulet sighting in Anavilhanas National Park on a given day, based on 49 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 99th most-seen of the 291 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.
May and June
In those months about 30% of wildlife watchers report a Slender-footed Tyrannulet in Anavilhanas National Park on a given day, against under 5% in January, March–April and July, the lowest months.
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.
3rd of 8
Of the 8 parks where we can rate Slender-footed Tyrannulet sightings, Anavilhanas National Park ranks 3rd at about 10%. The best odds are in Brownsberg Nature Park (Suriname, about 40%) and Amacayacu National Natural Park (Colombia, about 20%).
Same family: Tyrannidae
The closest relatives of the Slender-footed Tyrannulet that you can see in Anavilhanas National Park (family Tyrannidae, Tyrant Flycatchers) are Tropical Kingbird (about 50%), Snethlage's Tody-Tyrant (about 40%) and Great Kiskadee (about 30%), 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 Anavilhanas National Park (49 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.
