Chauna torquata
Silhouette: Edouard Traviés · PhyloPic
In 3 days ~10% in a week ~20%
The southern screamer (Chauna torquata) is a species of bird in family Anhimidae of the waterfowl order Anseriformes. It is found in Argentina, Bolivia, Brazil, Paraguay, Peru, and Uruguay. The southern screamer shares genus Chauna with the northern screamer (C. chavaria). One other species, the horned screamer (Anhima cornuta) is also in family Anhimidae. The southern screamer is monotypic.
The southern screamer is one of the largest birds of southern South America at 83 to 90 cm (33 to 35 in) long and weighing about 4.4 kg (9.7 lb). Their flat wing measures 50 to 57 cm (20 to 22 in), their tail 22 to 26 cm (8.7 to 10.2 in), and their culmen 4.0 to 5.4 cm (1.6 to 2.1 in). Weight is known from one female, which was 4.4 kg (9.7 lb). They are stout bodied with a disproportionately small head and a "chicken-like" grayish brown bill. The sexes have the same plumage. Their head and upperparts are gray with a velvety black "collar" around the base of the neck. Their wings and tail are dusky and the wing has two sharp spurs at its manus. The front of their neck, their breast, and their sides are pale gray faintly mottled and streaked with white... Wikipedia →
| # | Park | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Iberá National Park | 🇦🇷 Argentina | |
| 2 | Parque Estadual Encontro das Águas | 🇧🇷 Brazil | |
| 3 | El Impenetrable National Park | 🇦🇷 Argentina | |
| 4 | El Palmar National Park | 🇦🇷 Argentina |
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Buenos Aires | 🇦🇷 Argentina | |
| 2 | Santa Cruz de la Sierra | 🇧🇴 Bolivia | |
| 3 | Campo Grande | 🇧🇷 Brazil | |
| 4 | Asuncion | 🇵🇾 Paraguay | |
| 5 | Montevideo | 🇺🇾 Uruguay | |
| 6 | Porto Alegre | 🇧🇷 Brazil |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | San Diego Zoo | 🇺🇸 United States | |
| 2 | Prague Zoo | 🇨🇿 Czechia | |
| 3 | Tierpark Berlin | 🇩🇪 Germany | |
| 4 | Natura Artis Magistra | 🇳🇱 Netherlands | |
| 5 | Zürich Zoo | 🇨🇭 Switzerland | |
| 6 | Parque das Aves | 🇧🇷 Brazil | |
| 7 | Barcelona Zoo | 🇪🇸 Spain | |
| 8 | Zlín-Lešná Zoo | 🇨🇿 Czechia | |
| 9 | Ostrava Zoo | 🇨🇿 Czechia | |
| 10 | Parc des oiseaux | 🇫🇷 France | |
| 11 | Zoobotánico Jerez | 🇪🇸 Spain | |
| 12 | Zoo d'Amiens | 🇫🇷 France | |
| 13 | Zoo Miami | 🇺🇸 United States | |
| 14 | San Diego Zoo Safari Park | 🇺🇸 United States | |
| 15 | Bronx Zoo | 🇺🇸 United States | |
| 16 | Kansas City Zoo | 🇺🇸 United States | |
| 17 | Parc zoologique de Montpellier | 🇫🇷 France | |
| 18 | Nashville Zoo at Grassmere | 🇺🇸 United States | |
| 19 | Sedgwick County Zoo | 🇺🇸 United States | |
| 20 | Milwaukee County Zoo | 🇺🇸 United States | |
| 21 | Nuremberg Zoo | 🇩🇪 Germany | |
| 22 | Parque Zoológico de León - Zooleón | 🇲🇽 Mexico | |
| 23 | Dallas Zoo | 🇺🇸 United States | |
| 24 | Slimbridge Wetland Centre | 🇬🇧 United Kingdom | |
| 25 | Phoenix Zoo | 🇺🇸 United States | |
| 26 | Jacksonville Zoo and Gardens | 🇺🇸 United States | |
| 27 | Wildlife World Zoo | 🇺🇸 United States | |
| 28 | São Paulo Zoo | 🇧🇷 Brazil | |
| 29 | Africam Safari | 🇲🇽 Mexico | |
| 30 | Louisville Zoo | 🇺🇸 United States | |
| 31 | Audubon Zoo | 🇺🇸 United States | |
| 32 | Oklahoma City Zoo and Botanical Garden | 🇺🇸 United States | |
| 33 | Berlin Zoological Garden | 🇩🇪 Germany | |
| 34 | Caldwell Zoo | 🇺🇸 United States | |
| 35 | Wrocław Zoological Garden | 🇵🇱 Poland | |
| 36 | Temaikén | 🇦🇷 Argentina | |
| 37 | Bioparque | 🇺🇾 Uruguay | |
| 38 | Memphis Zoo | 🇺🇸 United States | |
| 39 | Metro Richmond Zoo | 🇺🇸 United States | |
| 40 | Zoológico Benito Juárez | 🇲🇽 Mexico | |
| 41 | Virginia Zoological Park | 🇺🇸 United States | |
| 42 | DierenPark Amersfoort | 🇳🇱 Netherlands | |
| 43 | Houston Zoo | 🇺🇸 United States | |
| 44 | Ljubljana Zoo | 🇸🇮 Slovenia | |
| 45 | San Antonio Zoo | 🇺🇸 United States | |
| 46 | Alipore Zoological Gardens | 🇮🇳 India | |
| 47 | Cologne Zoological Garden | 🇩🇪 Germany | |
| 48 | Emirates Park Zoo | 🇦🇪 United Arab Emirates | |
| 49 | Philadelphia Zoo | 🇺🇸 United States | |
| 50 | Ecopark | 🇦🇷 Argentina |
Rare
Under 5% of wildlife watchers report a Southern Screamer sighting in Asuncion on a given day, based on 63 verified sightings from GBIF citizen-science data. It is the 119th most-seen of the 224 birds we can rate there. Over three days the chance rises to about 10%, and over a week to about 20%, if each day is a fresh chance.
June, August and November–December
In those months about 10% of wildlife watchers report a Southern Screamer in Asuncion on a given day, against under 5% in January–May, July and September–October, the lowest months.
Between 10 am and 1 pm
Across all the parks we cover, that three-hour window holds the most Southern Screamer 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 6
Of the 6 cities where we can rate Southern Screamer sightings, Asuncion ranks 4th at under 5%. The best odds are in Buenos Aires (Argentina, about 30%), Santa Cruz de la Sierra (Bolivia, about 20%) and Campo Grande (Brazil, under 5%).
GBIF citizen-science records
It is estimated from how often the Southern Screamer is recorded against all the birds logged in Asuncion (63 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.
