Amblyramphus holosericeus
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The scarlet-headed blackbird (Amblyramphus holosericeus) is a species of bird in the family Icteridae, the oropendolas, New World orioles, and New World blackbirds. It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay.
The scarlet-headed blackbird was formally described in 1786 with the binomial Xanthornus holosericeus. It is now the only member of genus Amblyramphus and has no subspecies. Male scarlet-headed blackbirds average 25 cm (9.8 in) long and weigh an average of 86 g (3.0 oz). Females average 22.5 cm (8.9 in) long and weigh an average of 75 g (2.6 oz). The sexes have the same plumage. Adults have a thin black stripe behind the lores and black eyelids. The rest of their head and their neck, upper breast, and thighs are scarlet-red. The rest of their plumage is a slightly glossy black. They have a black iris, a sharp, chisel-shaped black bill, and black legs and feet. Juveniles are almost entirely brownish black with a yellowish wash on the throat and breast; they gradually acquire the adult's red.
The scarlet-headed blackbird has a disjunct distribution. Its largest range from northern... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iberá National Park | 🇦🇷 Argentina | |
| 2 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina | |
| 2 | Porto Alegre | 🇧🇷 Brazil |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Prague Zoo | 🇨🇿 Czechia | |
| 2 | Zoo Miami | 🇺🇸 United States | |
| 3 | Toronto Zoo | 🇨🇦 Canada | |
| 4 | Parc zoologique de Montpellier | 🇫🇷 France | |
| 5 | Zoo Aquarium de Madrid | 🇪🇸 Spain | |
| 6 | Cleres Zoological Park | 🇫🇷 France | |
| 7 | Vogelpark Avifauna | 🇳🇱 Netherlands | |
| 8 | National Aviary | 🇺🇸 United States | |
| 9 | Rákosův pavilon | 🇨🇿 Czechia | |
| 10 | Velemlokárium | 🇨🇿 Czechia |
Rare
Under 5% of wildlife watchers report a Scarlet-headed Blackbird sighting in Parque Estadual Encontro das Águas on a given day, based on 25 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 235th most-seen of the 308 birds we can rate there. Over three days the chance rises to under 5%, and over a week to about 10%, if each day is a fresh chance.
Any time of year
In every month with enough records, under 5% of wildlife watchers report a Scarlet-headed Blackbird in Parque Estadual Encontro das Águas on a given day, so our monthly data shows no clear season. January to April have too few records to rate.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Scarlet-headed Blackbird sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
2nd of 2
Of the 2 parks where we can rate Scarlet-headed Blackbird sightings, Parque Estadual Encontro das Águas ranks 2nd at under 5%. The best odds are in Iberá National Park (Argentina, about 40%).
Same family: Icteridae
The closest relatives of the Scarlet-headed Blackbird that you can see in Parque Estadual Encontro das Águas (family Icteridae, New World Blackbirds and Orioles) are Yellow-rumped Cacique (about 50%), Unicoloured Blackbird (about 50%) and Orange-backed Oriole (about 40%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Scarlet-headed Blackbird is recorded against all the birds logged in Parque Estadual Encontro das Águas (25 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.
