Scrub Tanager
Stilpnia vitriolina
Quick Facts
- Scientific Name: Stilpnia vitriolina
- Spanish Name: Tángara matorralera
- Family: Thraupidae
- Known Nicknames: Tangara matorralera, Vitrioline Tanager
- Average Length: 14 cm / 5.5 in
- Average Weight: 18–24 g / 0.63–0.85 oz
- Wingspan: 20–23 cm / 8–9 in
- Key Feature: Bright rufous-brown crown contrasting with black mask and silvery-green plumage
- Primary Diet: Omnivore (Primarily Frugivore and Insectivore)
- Range: Andean regions of Colombia and Ecuador
- Habitat: Arid to semi-humid scrubland, gardens, and secondary growth forests
- Social Structure: Pairs or small family groups; occasionally joins mixed-species foraging flocks
- Nesting/Breeding: Cup-shaped nest constructed in dense shrubs or low trees
- Statut de conservation : Préoccupation mineure (LC)
- Population Trend: Stable
The Scrub Tanager (*Stilpnia vitriolina*) is a spirited and adaptable songbird primarily found in the open scrublands, gardens, and Andean valleys of Colombia and Ecuador. It is most easily recognized by its distinctive rufous or "rusty" crown, which provides a sharp, warm contrast to its sleek, silvery-gray body and dark, mask-like facial markings. Its wings and tail are delicately edged with a shimmering greenish-yellow tint, adding a subtle iridescence to its understated elegance. Unlike many of its more reclusive forest-dwelling relatives, this tanager is remarkably social and bold, often seen flitting through suburban parks and agricultural clearings in search of fruit and insects. Its ability to thrive in human-altered landscapes makes it a frequent and charming sight for birdwatchers across its localized South American range.
Faits amusants
Scrub Tanagers are remarkably bold, often treating backyard bird feeders like their personal buffets, especially when bananas or papayas are on the menu. Their scientific name, *vitriolina*, is a nod to their shimmering, sulfate-green plumage that glints like glass in the sun. Despite their bright colors, they are masters of the "sit-and-wait" hunting technique, staying perfectly still before a sudden, acrobatic burst to snatch an insect mid-air. They also possess a unique vocal quirk, producing high-pitched calls that sound remarkably like a rusty gate or a squeaky toy, making them as easy to hear as they are to spot.
Habitats et répartition
This species is native to northwestern South America, with a geographical range that extends through the Andean valleys of Colombia and into northern and central Ecuador. It is primarily found within inter-Andean regions, occupying a variety of elevations typically ranging from 500 to 2,500 meters above sea level.
Its preferred habitats consist of open and semi-open landscapes, including arid scrublands, brushy hillsides, and secondary growth forests. It is highly adaptable to human-altered environments, frequently appearing in agricultural clearings, suburban gardens, and urban parks, while generally avoiding the interior of dense, primary humid forests.
Comportements & Reproduction
These birds typically reside in pairs or small family groups, often venturing into open scrubland, gardens, and forest edges. They are highly active foragers, frequently joining mixed-species flocks to search for insects and fruit. Their social nature is balanced by a degree of territoriality during the breeding season, though they generally remain conspicuous and vocal within their preferred habitats.
During the breeding season, monogamous pairs construct a neat, cup-shaped nest composed of moss, fine rootlets, and lichen, usually concealed within dense shrubbery or low tree branches. The female typically lays two pale, speckled eggs, which she incubates while the male remains nearby to provide protection and occasional food. Both parents share the responsibility of feeding the fledglings, employing a cooperative approach to ensure the survival of the brood in varied environments.
Alimentation
The Scrub Tanager maintains a diverse omnivorous diet primarily composed of various small fruits and a wide array of insects. It is particularly fond of berries from plants in the Melastomataceae family and wild figs, often foraging actively among the foliage of shrubs and trees to find its next meal. An interesting aspect of its feeding behavior is its high level of adaptability; while it frequently gleans insects like beetles and ants from leaves and branches, it is also a common visitor to garden bird feeders, where it readily consumes soft fruits such as bananas and papayas. These birds typically forage in pairs or small family groups, moving with quick, acrobatic motions through the canopy to exploit seasonal food sources, demonstrating a dietary versatility that allows them to thrive in both open woodlands and human-altered landscapes.
Couleurs
The Scrub Tanager displays a predominantly sandy-gray body accented by a distinctive rufous-brown crown and dark lores. Its wings and tail feature subtle greenish-blue edges, while its overall muted, earthy palette provides effective camouflage within dense scrub and garden environments.
