En bref

• Scientific Name: Tyrannus albogularis
• Spanish Name: Tirano garganta blanca
• Famille : Tyrannidae
• Known Nicknames: White-throated Tyrant
• Average Length: 20–23 cm / 8–9 in
• Average Weight: 35–45 g / 1.2–1.6 oz
• Wingspan: 30–35 cm / 12–14 in
• Key Feature: Bright white throat contrasting with gray head and yellow belly
• Primary Diet: Primarily Insectivore (also small fruits)
• Range: Central Brazil, eastern Bolivia, Paraguay, and northern Argentina
• Habitat: Savanna, open woodland, cerrado, and forest edges
• Structure sociale : Solitaires ou en couples
• Nesting/Breeding: Open cup nest in tree fork
• Statut de conservation : Préoccupation mineure (LC)
• Évolution démographique : Stable

The White-throated Kingbird (*Tyrannus albogularis*) is a striking tyrant flycatcher of open savannas and forest edges across central South America, most notable for its boldly contrasting plumage: a crisp white throat and upper chest sharply set against a pale gray head, dark olive-gray back, and a bright lemon-yellow belly that extends to the undertail coverts. Its most unique characteristic is the combination of a relatively short, all-black bill and a slightly notched black tail tipped with white, distinguishing it from its more widespread relative, the Tropical Kingbird. A master aerial insectivore, it perches conspicuously on wires and exposed branches, sallying out with acrobatic grace to snatch dragonflies and beetles mid-flight, and it is equally famous for its fierce territorial defense—fearlessly mobbing hawks, crows, and even humans that venture too close to its nest. Special features include a subtle reddish-orange crown patch (often hidden) that flashes during aggressive displays, and a loud, rapid-fire *kip-kip-kip-keeer* call that echoes across its grassland home.

Faits amusants

Despite being a tyrant flycatcher, the White-throated Kingbird has a surprisingly melodious, flute-like dawn song that contrasts sharply with its harsh, buzzing daytime calls. It is a master of aerial acrobatics, often seen performing a peculiar "flutter-flight" display where it hovers in place with rapid wingbeats while fanning its tail to flush out hidden insects. One quirky behavior is its habit of vigorously attacking its own reflection in windows or car mirrors for hours, defending its territory from an "intruder" that never retreats. It also has a unique adaptation for nesting in open savannas: it builds a bulky, cup-shaped nest almost exclusively from the fluffy seed heads of the silky oak or other downy plants, creating a soft, insulating cradle that helps regulate egg temperature in the intense tropical heat.

Habitats et répartition

The White-throated Kingbird inhabits open and semi-open environments, primarily within tropical and subtropical zones. Its typical habitats include savannas, scrublands, forest edges, riverine woodlands, and areas of secondary growth, often near water sources. It is also commonly found in agricultural landscapes, pastures, and disturbed areas with scattered trees or shrubs, where it perches prominently to forage. Geographically, this species has a restricted distribution in northeastern South America, occurring in eastern Venezuela, Guyana, Suriname, French Guiana, and northern Brazil, with its range largely centered on the Guiana Shield region.

Comportements & Reproduction

The White-throated Kingbird is a highly territorial and socially monogamous species, with pairs forming during the breeding season. Males establish and vigorously defend nesting territories through aerial displays and loud vocalizations, often perching prominently to deter rivals and attract a mate. Courtship involves chases and ritualized feeding, where the male presents food to the female. The female constructs a cup-shaped nest in a tree fork, typically using twigs, grass, and spider silk. She lays a clutch of 2–4 eggs and incubates them alone for about 16–18 days, while the male provides food and guards the territory. A unique reproductive strategy is their frequent use of old nests from other bird species, such as orioles or flycatchers, which reduces energy expenditure on construction. Both parents feed the altricial young, and the pair often raises a single brood per season, though second broods may occur in optimal conditions. Fledglings remain dependent on the parents for several weeks after leaving the nest, learning foraging techniques through observation.

Alimentation

The White-throated Kingbird is an insectivorous bird with a diet overwhelmingly composed of flying insects, which it captures in mid-air through agile sallies from an exposed perch. It primarily consumes bees, wasps, ants, beetles, grasshoppers, and dragonflies, often targeting larger prey that it beats against a branch before swallowing. An interesting dietary fact is its notable preference for stinging insects like bees and wasps, which it skillfully disarms by crushing the stinger against a perch before consumption. Additionally, during the non-breeding season or when insects are scarce, it will supplement its diet with small fruits and berries, demonstrating a degree of dietary flexibility uncommon among strict aerial insectivores.

Couleurs

The White-throated Kingbird has a pale gray head and upperparts, a stark white throat and breast, and a bright yellow belly and undertail coverts. Its dark wings and tail show subtle brownish edges, with the tail often appearing slightly notched. It lacks any disruptive camouflage, relying instead on conspicuous coloration for territorial displays rather than concealment.

Distribution Map

Places linked to this species. A sighting is never guaranteed.

Détails de l'attraction

Cliquez sur un marqueur pour obtenir plus d'informations ici.