Trilling Gnatwren

The trilling gnatwren, known scientifically as Ramphocaenus melanurus, is a diminutive avian member of the gnatcatcher family. This species, once referred to as the long-billed gnatwren, is easily recognized by its slender, elongated bill and the characteristic short, upturned tail.

Identification Tips

Adults measure between 12 to 13 centimeters in length and tip the scales at a mere 8 to 11 grams. Their plumage is a subtle grey-brown on the upperparts, with a distinctive rufous hue adorning the sides of the head. The throat is a pristine white, transitioning to a gentle buff across the remainder of the underparts. The tail, predominantly black, features white tips on all but the central feathers and is often seen in a state of perpetual motion.

Habitat

The trilling gnatwren is found flitting through the undergrowth and entangled vines of dry forests and secondary woodlands, extending from the southern reaches of Mexico down to the verdant expanses of Peru and Brazil, and even gracing the island of Trinidad with its presence.

Distribution

This species boasts a broad range, with sightings reported from southeast Mexico, southward to Ecuador, Amazonia, and the island of Trinidad.

Behaviour

Pairs or family groups of trilling gnatwrens are commonly observed foraging with zest in the vegetation, in search of sustenance.

Song & Calls

The vocalization of the trilling gnatwren is a distinctive, rapid trill that can be phonetically rendered as "drdrdrdrdrdrdrdrdrdr."

Breeding

The breeding ritual involves the construction of a deep cup nest, strategically placed very low in a small plant or sapling. Both parents share the responsibility of incubating the two pristine white eggs for a period of 16 to 17 days until hatching, followed by an additional 11 to 12 days until the young are ready to fledge.

Diet and Feeding

The diet of the trilling gnatwren is primarily composed of insects, their eggs, and spiders, which they actively seek out in the surrounding vegetation.

Conservation status

The trilling gnatwren is currently classified as Least Concern by the IUCN, indicating a stable population without immediate threats to its survival.