Ruby-crowned Tanager

Identification

The ruby-crowned tanager is a small passerine, measuring 16 centimetres in length and weighing between 26–33 grams. Sexual dimorphism is pronounced in this species. Males are striking birds with shining black plumage and a distinctive concealed red crest on the front of the head, which they rarely raise except when excited. In flight, males reveal white wingpits that are otherwise hidden. Females present a contrasting appearance, displaying light brown plumage with slight black streaking under the throat and noticeably darker wings. Both sexes share conical bills and black legs and feet, features typical of many tanager species.

Range & Habitat

The ruby-crowned tanager occupies a large range across southern South America, including most of southern Brazil, eastern Paraguay, and the Misiones Province of Argentina. This species inhabits subtropical and tropical moist environments, thriving in lowland forests, montane forests, and even heavily degraded former forest areas, demonstrating considerable adaptability to habitat disturbance.

Behaviour & Diet

Ruby-crowned tanagers are highly active foragers that employ diverse feeding strategies. They consume a varied diet of fruits, insects, and seeds, supplementing their natural food sources by pursuing swarms of army ants—a behavior shared with several other tropical bird species. These tanagers readily visit feeding stations stocked with fruit, making them accessible to observers with prepared resources.

Socially, ruby-crowned tanagers are flexible in their grouping patterns. While they typically live in pairs, they may also be encountered alone or in slightly larger flocks. Their active nature drives constant movement between fruiting trees as they search for food, making them engaging subjects for patient observers.

Best Time & Places to See It

Travellers seeking this species should focus on southern Brazil, eastern Paraguay, and the Misiones Province of Argentina, where the species maintains its large range. The ruby-crowned tanager's preference for fruit-bearing trees means that areas with abundant fruiting vegetation will offer the best viewing opportunities. Setting up fruit feeders can attract these birds reliably, allowing for closer observation and photography.

Photography Tips

Photographing male ruby-crowned tanagers offers striking compositional possibilities, as their glossy black plumage creates strong contrast and reflects light beautifully. The concealed red crest is rarely visible, but patient photographers may capture the moment it is raised during excitement. The white wingpits are only visible in flight, so anticipating takeoff moments will reward those seeking to document this diagnostic feature. Female birds, while less conspicuous, present subtle beauty in their brown and darker tones. Since these are active foragers constantly moving between trees, a fast shutter speed is essential. Position yourself near fruiting trees or established feeding stations early in the day when light is optimal and bird activity peaks.