Machetornis rixosa
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~80% in a week >90%
The cattle tyrant (Machetornis rixosa) is a species of bird in the tyrant flycatcher family Tyrannidae. In Brazil, it is called suiriri-cavaleiro. It is the only member of the genus Machetornis. The relationships of this species and genus to other genera in the tyrant flycatchers are uncertain. It resembles Tyrannus flycatchers, but this may be the result of convergence.
The genus name was given to the species by George Robert Gray and is derived from the Ancient Greek makhētēs for fighter and ornis for bird, a reference to its pugnacious behaviour and habit of dispossessing other species of their nests. The specific name comes from the Latin rixosus meaning quarrelsome, again referring to the behaviour and temperament of the species.
The species has a disjunct distribution, with three subspecies accepted: Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iberá National Park | 🇦🇷 Argentina | |
| 2 | El Palmar National Park | 🇦🇷 Argentina | |
| 3 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 4 | Serra da Canastra National Park | 🇧🇷 Brazil | |
| 5 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 6 | Emas National Park | 🇧🇷 Brazil | |
| 7 | Iguazú National Park | 🇦🇷 Argentina | |
| 8 | Iguaçu National Park | 🇧🇷 Brazil | |
| 9 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 10 | Yasuní National Park | 🇪🇨 Ecuador | |
| 11 | Henri Pittier National Park | 🇻🇪 Venezuela | |
| 12 | Tayrona National Natural Park | 🇨🇴 Colombia | |
| 13 | Tijuca National Park | 🇧🇷 Brazil | |
| 14 | Piedras Blancas National Park | 🇨🇷 Costa Rica | |
| 15 | Farallones de Cali National Natural Park | 🇨🇴 Colombia | |
| 16 | Los Nevados National Natural Park | 🇨🇴 Colombia | |
| 17 | Itatiaia National Park | 🇧🇷 Brazil | |
| 18 | Chapada Diamantina National Park | 🇧🇷 Brazil | |
| 19 | Amboró National Park | 🇧🇴 Bolivia | |
| 20 | Cuyabeno Wildlife Reserve | 🇪🇨 Ecuador | |
| 21 | Chapada dos Guimarães National Park | 🇧🇷 Brazil | |
| 22 | Sierra de la Macarena National Park | 🇨🇴 Colombia |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Rosario | 🇦🇷 Argentina | |
| 2 | Buenos Aires | 🇦🇷 Argentina | |
| 3 | Campo Grande | 🇧🇷 Brazil | |
| 4 | Mendoza | 🇦🇷 Argentina | |
| 5 | Montevideo | 🇺🇾 Uruguay | |
| 6 | Cordoba | 🇦🇷 Argentina | |
| 7 | Natal | 🇧🇷 Brazil | |
| 8 | Salvador | 🇧🇷 Brazil | |
| 9 | João Pessoa | 🇧🇷 Brazil | |
| 10 | Fortaleza | 🇧🇷 Brazil |
Likely
About 40% of wildlife watchers report a Cattle Tyrant sighting in El Impenetrable National Park on a given day, based on 113 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 42nd most-seen of the 219 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.
July and October–November
In those months about 50% of wildlife watchers report a Cattle Tyrant in El Impenetrable National Park on a given day, against about 30% in January–March, May–June and August, the lowest months. December has too few records to rate.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Cattle Tyrant sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
3rd of 22
Of the 22 parks where we can rate Cattle Tyrant sightings, El Impenetrable National Park ranks 3rd at about 40%. The best odds are in Iberá National Park (Argentina, about 70%) and El Palmar National Park (Argentina, about 60%). All parks ranked.
Same family: Tyrannidae
The closest relatives of the Cattle Tyrant that you can see in El Impenetrable National Park (family Tyrannidae, Tyrant Flycatchers) are Pearly-vented Tody-Tyrant (about 70%), Great Kiskadee (about 70%) and Tropical Kingbird (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Cattle Tyrant is recorded against all the birds logged in El Impenetrable National Park (113 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.
