Blue-necked Tanager

It is a highly colorful passerine of moderate size that ranges from 12 to 13 centimeters in length, with an average weight of 17 grams. This bird displays an extraordinary color contrast, featuring a brilliant blue or purplish-blue head covering the face, crown, and throat, framed by a prominent black facial mask around the eyes. The chest and mantle are a deep, velvety black, while the wing coverts and rump showcase a stunning, luminous golden-yellow or straw-yellow coloration that reflects brightly in sunlight. The lower abdomen and flanks vary by subspecies, ranging from purplish-blue to solid black. The bill is short, stout, and bluish-black in color, matching the legs. It exhibits minimal sexual dimorphism, making males and females look virtually identical, although some females may present slightly duller plumage tones.

Geographical distribution: It is native to the mountainous regions of South America, where its range extends along the Andean slopes from Venezuela, Colombia, and Ecuador, south through Peru and into Bolivia. Additionally, isolated and local populations inhabit central and western Brazil, specifically within transition zones toward the Amazon basin and the Cerrado biome. It is primarily found at elevations ranging from 300 to 2,400 meters above sea level, depending on the latitude and the specific subspecies present in the area.

Habitat: This bird primarily occupies humid montane forests, rainforest edges, secondary growth woodlands, and forest clearings. Due to its ecological plasticity, it is also frequently observed in human-modified landscapes, such as shade-grown coffee plantations, citrus orchards, suburban parks, and wooded gardens near human settlements, provided there is sufficient canopy cover to offer shelter and foraging opportunities.

Feeding: It has a highly diverse frugivorous and omnivorous diet. It feeds extensively on small fruits and berries from plant families such as Melastomataceae, Urticaceae, and Moraceae (particularly wild figs). To complement its nutritional intake, it actively searches for insects, spiders, and other small invertebrates, which it gleans from the underside of leaves, small twigs, and tree bark. It also consumes flower nectar when available and is a regular visitor to artificial feeding stations stocked with fruits like bananas and papayas.

Behavior: It is a highly active, energetic, and social bird. It is commonly seen moving in pairs or small family groups of three to five individuals. It frequently associates with other tanagers and insectivorous forest birds to form mixed-species foraging flocks, which enhances feeding efficiency and predator detection. It maneuvers agilely through the middle and upper canopy, sometimes hanging upside down to pluck berries from slender twigs. Its vocalizations consist of rapid, high-pitched squeaky chirps and dry call notes that are constant but not highly melodic.

Nesting: The breeding process begins with the construction of a compact, cup-shaped nest built by both members of the pair. They utilize moss, fine plant fibers, rootlets, and dry leaves, often camouflaging the exterior with lichens to blend seamlessly with the surrounding branches. These nests are typically positioned at heights of 2 to 8 meters above the ground, well hidden within dense foliage or in a fork of a tree. The female typically lays a clutch of 2 eggs that are greenish-white or creamy in color, densely speckled with reddish-brown and lilac markings. Incubation is performed almost exclusively by the female for about 13 to 14 days, while both parents actively share the duty of feeding the chicks for approximately two weeks until the fledglings are ready to leave the nest.

Conservation status: It is currently classified under the category of Least Concern (LC) on the IUCN Red List. This status is justified by its extensive geographic range, stable population trends, and high adaptability to moderately degraded habitats and agricultural buffer zones created by human activity.