Stephanophorus diadematus
Silhouette: Sheatherius · PhyloPic
In 3 days <5% in a week ~10%
The diademed tanager (Stephanophorus diadematus) is a species of Neotropical bird in the tanager family Thraupidae. It is the only member of the genus Stephanophorus. It is purple-blue with a white crown characterised by a small red patch, and it is found mostly in open areas in southern Brazil, northeast Argentina, and Uruguay.
The diademed tanager was formally described and illustrated in 1823 by the Dutch zoologist Coenraad Jacob Temminck under the binomial name Tanagra diademata. The type locality is Curitiba in Brazil. This is now the only species placed in the genus Stephanophorus that was introduced in 1841 by the English naturalist Hugh Edwin Strickland. The genus name combines the Ancient Greek stephanē meaning "diadem" and -phoros meaning "carrying". The specific epithet diadematus is Latin meaning "diademed". The diademed tanager is monotypic: no subspecies are recognised.
The diademed tanager is, on average, 19 cm (7.5 in) long and weighs 35–41.5 g (1–1 oz). When illuminated well, it is mostly dark glossy bluish-violet in color, although the coloration often seems dull blackish in poor light. The wings and tail have blue-bordered black feathers... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | El Palmar National Park | 🇦🇷 Argentina | |
| 2 | Itatiaia National Park | 🇧🇷 Brazil | |
| 3 | Serra dos Órgãos National Park | 🇧🇷 Brazil | |
| 4 | Iberá National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Curitiba | 🇧🇷 Brazil | |
| 2 | Buenos Aires | 🇦🇷 Argentina | |
| 3 | Montevideo | 🇺🇾 Uruguay |
Rare
Under 5% of wildlife watchers report a Diademed Tanager sighting in Iberá National Park on a given day, based on 13 verified sightings from GBIF citizen-science data from 2019 to 2026. It is the 253rd most-seen of the 284 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 Diademed Tanager in Iberá National Park on a given day, so our monthly data shows no clear season.
Between 8 and 11 am
Across all the parks we cover, that three-hour window holds the most Diademed Tanager sightings with a recorded time, and about 9 in 10 of them come between 6 am and 6 pm: it is a daytime animal.
4th of 4
Of the 4 parks where we can rate Diademed Tanager sightings, Iberá National Park ranks 4th at under 5%. The best odds are in El Palmar National Park (Argentina, about 40%), Itatiaia National Park (Brazil, about 30%) and Serra dos Órgãos National Park (Brazil, under 5%).
Same family: Thraupidae
The closest relatives of the Diademed Tanager that you can see in Iberá National Park (family Thraupidae, Tanagers and Allies) are Brazilian Cardinal (about 70%), Great Pampa-Finch (about 60%) and Sayaca Tanager (about 60%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Diademed Tanager is recorded against all the birds logged in Iberá National Park (13 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.
