Sirirí Sureño/Snowy-throated Kingbird/Tyrannus niveigularis

Nombre en español: Sirirí Sureño

Nombre en inglés: Snowy-throated Kingbird

Nombre científico: Tyrannus niveigularis

Familia: Tyrannidae

Canto: Andrew Spencer

El tirano gorginíveo (Tyrannus niveigularis), también denominado tirano goliníveo (en Ecuador), sirirí sureño (en Colombia), tirano de garganta nívea (en Perú) o pitirre nevado, es una especie de ave paseriforme perteneciente al género Tyrannus, integrado en la familia Tyrannidae. Es nativo del noroeste de América del Sur.

Distribución y hábitat

Se distribuye por el extremo suroeste de Colombia (suroeste de Nariño), oeste de Ecuador (desde el centro de Manabí al sur, incluyendo la isla La Plata, hasta El Oro y extremo suroeste de Loja) y oeste del Perú (al sur hasta Ancash).
Es localmente bastante común. Nidifica en el norte y centro de Ecuador en matorrales desérticos y áreas arbustivas y agrícolas y se traslada a terrenos más húmedos durante la estación seca local (de junio a noviembre). Habita principalmente abajo de los 600 msnm de altitud.

*Tyrannus niveigularis*, ilustración de Smit, 1880, para Proceedings of the Royal Society of London.

Snowy-throated kingbird

The snowy-throated kingbird (Tyrannus niveigularis) is a species of bird in the family Tyrannidae. It is found in Colombia, Ecuador, and Peru. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical dry shrubland.

Snowy-throated Kingbird is a striking, conspicuous flycatcher of the Pacific coast of northwestern South America. Found from southern coastal Colombia south to northwestern Peru, the species inhabits open areas and woodland edge below 500 m in elevation; this species also is partially migratory, which is somewhat surprising for a species with a small geographic range that is centered on the Equator. Snowy-throated Kingbird is gray above with a stout black bill, blackish wings edged in white, a black mask, and a white throat that blends into a bright yellow belly. The Snowy-throated Kingbird is smaller, paler below, and grayer-backed than the similar Tropical Kingbird (Tyrannus melancholicus), with which it overlaps geographically. Snowy-throated Kingbird also can be recognized by its sharp kip calls, which sometimes are strung together in an excited stutter.

Kingbirds (Tyrannus) are medium sized tyrant flycatchers with stout bills. Snowy-throated Kingbird basically is pale gray and olive above, with a white throat and a yellow belly. The crown is gray, and there is a distinct black mask on the sides of the face. The tail is square-tipped (not forked). Snowy-throated Kingbird is similar to the Tropical Kingbird (Tyrannus melancholicus); see Similar Species.