Chauna chavaria
Silhouette: Edouard Traviés · PhyloPic
In 3 days ~80% in a week >90%
The northern screamer (Chauna chavaria) is a species of bird in family Anhimidae of the waterfowl order Anseriformes. It is found in Colombia and Venezuela. The northern screamer shares genus Chauna with the southern screamer (C. torquata). One other species, the horned screamer (Anhima cornuta) is also in family Anhimidae. The northern screamer is monotypic.
The northern screamer is 76 to 91 cm (30 to 36 in) long. They are stout bodied with a disproportionately small head and a gray bill. The sexes have the same plumage. Adults have a gray crown with a long crest, a mostly white face, a wide black band around the neck, and a dark gray body, wings, and tail. Their wing has two sharp spurs at its manus. They have bare red skin around their brown eye and reddish orange legs and feet. Juveniles are similar to adults but drabber.
The northern screamer is found across northern Colombia from the Atrato River and Magdalena River valleys east into the Lake Maracaibo area of Venezuela. It inhabits a variety of wet landscapes including swamps, marshes, lagoons, riverbanks, and seasonally flooded river plains.
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| # | Park | Country | Daily sighting probability |
|---|
More parks will be added in future updates.
| # | City | Country | Daily sighting probability |
|---|---|---|---|
| 1 | Barranquilla | 🇨🇴 Colombia |
| # | Zoo / Centre | Country | |
|---|---|---|---|
| 1 | Zlín-Lešná Zoo | 🇨🇿 Czechia | |
| 2 | Parque Zoologico Guátika | 🇨🇴 Colombia | |
| 3 | Ukumarí Biopark | 🇨🇴 Colombia | |
| 4 | Amaru | 🇪🇨 Ecuador | |
| 5 | Aviario Nacional de Colombia | 🇨🇴 Colombia | |
| 6 | Parque de la Conservación | 🇨🇴 Colombia | |
| 7 | Parque Zoológico El Pinar | 🇻🇪 Venezuela | |
| 8 | Zoo El Pantanal | 🇪🇨 Ecuador | |
| 9 | zoologico de barranquilla | 🇨🇴 Colombia | |
| 10 | Dantas | 🇨🇴 Colombia |
Likely
About 40% of wildlife watchers report a Northern Screamer sighting in Barranquilla on a given day, based on 287 verified sightings from GBIF citizen-science data. It is the 16th most-seen of the 153 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.
December
In that month about 60% of wildlife watchers report a Northern Screamer in Barranquilla on a given day, against about 10% in April, the lowest month. That is one of Barranquilla's driest months, with about 35 mm of rain against 220 mm in October.
Between 7 and 10 am
Across all the parks we cover, that three-hour window holds the most Northern 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.
Only Barranquilla, in our data
Barranquilla is the only city on Wallace's Line with enough records to rate Northern Screamer sightings: about 40% of wildlife watchers there report one on a given day.
Same order: Anseriformes
The closest relatives of the Northern Screamer that you can see in Barranquilla (order Anseriformes, Waterfowl) are White-faced Whistling Duck (about 10%), Blue-winged Teal (about 10%) and Black-bellied Whistling-Duck (about 10%), with each one's daily chance of a sighting.
GBIF citizen-science records
It is estimated from how often the Northern Screamer is recorded against all the birds logged in Barranquilla (287 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.
