Phaeomyias murina
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~20% in a week ~30%
The mouse-colored tyrannulet (Nesotriccus murinus) is a species of bird in subfamily Elaeniinae of the tyrant flycatchers family Tyrannidae. It is found from Costa Rica and Panama south to Brazil and northern Argentina. The mouse-colored tyrannulet has sometimes been split into two species, the northern mouse-colored tyrannulet and the southern mouse-colored tyrannulet.
The mouse-colored tyrannulet was formally described in 1825 by the German naturalist Johann Baptist von Spix under the binomial name Platyrhynchus murinus based on a specimen from Brazil. The specific epithet is Modern Latin meaning "mouse-grey" from Latin murinus meaning "of mice". The type locality has been restricted to Juazeiro in the state of Bahia in eastern Brazil. The mouse-colored tyrannulet is now one of four species placed in the genus Nesotriccus that was introduced by Charles Haskins Townsend in 1895.
Four subspecies are recognised: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Anavilhanas National Park | 🇧🇷 Brazil | |
| 2 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 3 | Henri Pittier National Park | 🇻🇪 Venezuela | |
| 4 | Machalilla National Park | 🇪🇨 Ecuador | |
| 5 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 6 | Amacayacu National Natural Park | 🇨🇴 Colombia | |
| 7 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | |
| 8 | Amboró National Park | 🇧🇴 Bolivia | |
| 9 | Tayrona National Natural Park | 🇨🇴 Colombia | |
| 10 | Manu National Park | 🇵🇪 Peru | |
| 11 | La Amistad International Park (Panama) | 🇵🇦 Panama | |
| 12 | Tambopata National Reserve | 🇵🇪 Peru |
With luck
About 10% of wildlife watchers report a Mouse-Coloured Tyrannulet sighting in Belém on a given day, based on 13 verified sightings from GBIF citizen-science data. It is the 89th most-seen of the 144 birds we can rate there. Over three days the chance rises to about 20%, and over a week to about 30%, if each day is a fresh chance.
May–July, September and November–December
In those months about 10% of wildlife watchers report a Mouse-Coloured Tyrannulet in Belém on a given day, against under 5% in January–April, August and October, the lowest months.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Mouse-Coloured Tyrannulet sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
5th of 8
Of the 8 cities where we can rate Mouse-Coloured Tyrannulet sightings, Belém ranks 5th at about 10%. The best odds are in Cali (Colombia, about 20%), São Luís (Brazil, about 20%) and Manaus (Brazil, about 10%).
Same family: Tyrannidae
The closest relatives of the Mouse-Coloured Tyrannulet that you can see in Belém (family Tyrannidae, Tyrant Flycatchers) are Great Kiskadee (about 90%), Tropical Kingbird (about 70%) and Spotted Tody-Flycatcher (about 50%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Mouse-Coloured Tyrannulet is recorded against all the birds logged in Belém (13 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.
