Myiornis ecaudatus
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~10% in a week ~20%
The short-tailed pygmy tyrant (Myiornis ecaudatus) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found on Trinidad and in every mainland South American country except Argentina, Chile, Paraguay, and Uruguay.
The short-tailed pygmy tyrant was originally described in 1837 as Todirostrum ecaudatum. In the early to mid-twentieth century it was placed in genus Perissotriccus which was later merged into Myiornis. Several authors have suggested that genus Myiornis should be merged into genus Hemitriccus.
Between about 1940 and 1970 some authors included what is now the black-capped pygmy tyrant (M. atricapillus) as a third subspecies. The short-tailed and black-capped pygmy tyrants apparently form a superspecies. The short-tailed pygmy tyrant is 6 to 7 cm (2.4 to 2.8 in) long and weighs about 4.2 g (0.15 oz). It is the smallest passerine on Earth. The sexes have the same plumage. Adults of the nominate subspecies have a mostly dark gray head with blackish lores, a... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Brownsberg Nature Park | 🇸🇷 Suriname | |
| 2 | Tambopata National Reserve | 🇵🇪 Peru | |
| 3 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 4 | Manu National Park | 🇵🇪 Peru | |
| 5 | Sierra de la Macarena National Park | 🇨🇴 Colombia | |
| 6 | Amboró National Park | 🇧🇴 Bolivia | |
| 7 | Yasuní National Park | 🇪🇨 Ecuador |
Rare
Under 5% of wildlife watchers report a Short-tailed Pygmy-Tyrant sighting in Manu National Park on a given day, based on 143 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 330th most-seen of the 641 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.
January, May and July–August
In those months about 10% of wildlife watchers report a Short-tailed Pygmy-Tyrant in Manu National Park on a given day, against under 5% in February–April, June and September–December, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Short-tailed Pygmy-Tyrant sightings with a recorded time, and about 8 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 7
Of the 7 parks where we can rate Short-tailed Pygmy-Tyrant sightings, Manu National Park ranks 4th at under 5%. The best odds are in Brownsberg Nature Park (Suriname, about 10%), Tambopata National Reserve (Peru, about 10%) and Amacayacu National Natural Park (Colombia, under 5%).
Same family: Tyrannidae
The closest relatives of the Short-tailed Pygmy-Tyrant that you can see in Manu National Park (family Tyrannidae, Tyrant Flycatchers) are Social Flycatcher (about 40%), Tropical Kingbird (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 Short-tailed Pygmy-Tyrant is recorded against all the birds logged in Manu National Park (143 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.
