Red-necked Tanager

This is a small and remarkably colorful passerine that measures approximately 5.1 inches (13 centimeters) in length and weighs between 16 and 20 grams. It exhibits moderate sexual dimorphism. The male features an intense purplish-blue crown, a striking crimson-red collar covering the nape and sides of the neck, and a contrasting black throat. Its back is bright yellowish-green, while the breast and abdomen display deep turquoise-blue tones. The wings and tail are mostly black with prominent green margins. The female is slightly duller, showing a less intense red neck and a more subdued blue wash on the head. The bill is short, stout, and dark grey to black, perfectly suited for its diverse diet.

Geographical distribution: It is native to the Atlantic Forest biome of eastern South America. Its geographic range extends across eastern Brazil, from the states of Ceará and Bahia southwards to Rio Grande do Sul. Additionally, its distribution encompasses eastern Paraguay and the far northeastern corner of Argentina, particularly in the Misiones province, where it resides in localized forest pockets.

Habitat: It primarily occupies the canopy and subcanopy of humid tropical and subtropical forests, as well as mature secondary forests. It is highly adaptable and frequently observed along forest edges, shaded plantations, urban parks, and suburban gardens rich in native vegetation, spanning elevations from sea level up to 3,300 feet (1,000 meters).

Feeding: It has an omnivorous diet dominated by fruits and supplemented by small invertebrates. It feeds on a diverse range of small berries and fruits, especially from families such as Melastomataceae, Urticaceae (particularly Cecropia species), and Solanaceae. It also actively gleans insects, spiders, and larvae from leaves and twigs through agile, acrobatic movements, and occasionally takes nectar from flowers.

Behavior: It is a highly active and social bird, rarely seen alone. It typically travels in pairs or small family groups, and it is a core participant in mixed-species foraging flocks that roam the forest canopy. Its movements are quick and restless as it hops through branches. Its vocalizations consist of high-pitched, thin chirps and social calls used to maintain contact with flock members.

Nesting: Breeding activity takes place primarily during the austral spring and summer, from October to February. It builds a neat, deep cup-shaped nest constructed from fine plant fibers, moss, dry leaves, and cobwebs, strategically hidden in the fork of a branch or within epiphytic plants such as bromeliads. The female lays 2 to 3 eggs, which are whitish or pale cream speckled with brown or reddish spots. Incubation lasts about 12 to 14 days and is performed by the female, although both parents actively participate in feeding and protecting the chicks until they fledge.

Conservation status: It is currently classified as Least Concern (LC) on the IUCN Red List. Although the species remains relatively common throughout its range, its long-term survival is closely tied to the preservation of its habitat, which faces persistent threats from deforestation, agricultural expansion, and habitat fragmentation within the highly threatened Atlantic Forest biome.