Agriornis lividus
Silhouette: Emily Willoughby · PhyloPic
In 3 days ~30% in a week ~50%
The great shrike-tyrant (Agriornis lividus) is a species of bird in the family Tyrannidae, the tyrant flycatchers. It is found in Argentina and Chile. The great shrike-tyrant was formally described in 1835 as Tamnophilus [sic] lividus.
The great shrike-tyrant is the largest species of tyrant flycatcher, weighing an average of about 99 g (3.5 oz). It is 26 to 28 cm (10 to 11 in) long. The sexes have the same plumage. Adults of the nominate subspecies have a mostly grayish brown head with some whitish on the lores and a cinnamon tinge on the ear coverts. Their upperparts are grayish brown. Their wings are mostly a duskier grayish brown with pale brown edges on the flight feathers. Their tail is mostly black with buffy white tips and edges of the outer webs of the outer feathers. Their throat is white with heavy black streaks. Their underparts are a paler grayish brown than their upperparts, with a cinnamon or cinnamon-buff wash on the lower belly and crissum. Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Nahuel Huapi National Park | 🇦🇷 Argentina |
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Santiago | 🇨🇱 Chile |
With luck
About 10% of wildlife watchers report a Great Shrike-Tyrant sighting in Nahuel Huapi National Park on a given day, based on 111 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 55th most-seen of the 111 birds we can rate there. Over three days the chance rises to about 30%, and over a week to about 50%, if each day is a fresh chance.
June
In that month about 40% of wildlife watchers report a Great Shrike-Tyrant in Nahuel Huapi National Park on a given day, against under 5% in September and November–January, the lowest months. That is one of Nahuel Huapi National Park's wettest months, with about 310 mm of rain against 55 mm in February.
Between 9 am and noon
Across all the parks we cover, that three-hour window holds the most Great Shrike-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.
Only Nahuel Huapi National Park, in our data
Nahuel Huapi National Park is the only park on Wallace's Line with enough records to rate Great Shrike-Tyrant sightings: about 10% of wildlife watchers there report one on a given day.
GBIF citizen-science records
It is estimated from how often the Great Shrike-Tyrant is recorded against all the birds logged in Nahuel Huapi National Park (111 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.
