Lesser Elaenia

Identification

The lesser elaenia is a small tyrant flycatcher measuring 13 to 14 cm in length with a weight of 11.5 to 22 grams. Its most distinctive feature is a small, squarish crest, though this is often inconspicuous. The plumage is grayish olive on the head and upperparts, with a partially hidden white patch on the crown and a thin whitish eyering. The wings are mostly dusky with whitish edges on the flight feathers, and the white-tipped coverts create two conspicuous bars on the closed wing. The throat is gray, the breast grayish olive, and the belly and undertail coverts pale yellow. Males and females are identical in plumage. The subspecies E. c. albivertex is paler on the underparts. All individuals have a dark brown iris, black bill with a pinkish base to the mandible, and black legs and feet.

Range & Habitat

The lesser elaenia has a highly disjunct distribution across Central and South America, occurring in Costa Rica, Panama, Trinidad, and every mainland South American country except Chile and Uruguay. The nominate subspecies inhabits scattered interior locations in Costa Rica and the Pacific slope through Panama, while subspecies E. c. albivertex is found across much of northern and central South America, including Colombia, Venezuela, the Guianas, Ecuador, Peru, Bolivia, Paraguay, Argentina, and Brazil. The species has occasionally appeared as a vagrant on Bonaire and Curaçao.

The lesser elaenia favors open and semi-open tropical landscapes including scrublands, cerrado, light woodlands, secondary forest, brushy riparian areas, savanna grasslands, plantations, and hedgerows. Its elevation range varies considerably across its distribution, reaching 1,750 meters in Central America, 2,000 meters in Colombia, 3,000 meters in Venezuela, and 2,000 meters in Brazil.

Behaviour & Diet

The lesser elaenia feeds primarily on insects and berries, with the latter apparently dominating its diet in central Brazil. It typically forages singly or in pairs from the upper understory and above, gleaning while perched, hovering briefly, and making short sallies to catch prey in flight. It very rarely joins mixed-species feeding flocks. The species is a year-round resident throughout much of its range, though southern Brazilian populations apparently migrate northward during the austral winter, with occurrences in Rio Grande do Norte documented only between May and December.

Breeding occurs at different times across its range: beginning in March in Costa Rica, from mid-January to April or May in Panama, March to June in Colombia, April to June on Trinidad, and September to December in central Brazil. The female constructs a cup nest from plant fibers, leaves, and moss, lined with feathers and placed in a shrub or tree up to about 4 meters high. She incubates the clutch for 14 to 15 days and broods the nestlings, with both parents provisioning the young until fledging at 15 to 16 days after hatching.

Best Time & Places to See It

The lesser elaenia's status varies across its range. It is fairly common on Costa Rica's Pacific slope, locally common in Colombia, and locally common to fairly common in parts of Venezuela and Brazil. It is less common or poorly known in Ecuador, Peru, the Guianas, and Trinidad. The species is present in many public and private protected areas throughout its range. Given the seasonal breeding patterns and austral migration of southern populations, timing visits according to the breeding season in your target region will increase sighting chances.

Photography Tips

The lesser elaenia's small size and preference for the upper understory and canopy levels make it a challenging subject for photographers. Position yourself in open or semi-open habitats such as scrublands and light woodlands, where birds are more accessible than in dense forest. Early mornings are best, as the species produces a distinctive "very high, hurried, 'tju-wee tju-weederwee'" dawn song that can help you locate individuals. Look for the white wing bars on the closed wing and the partially hidden white crown patch as field marks. The bird's habit of foraging while perched and hovering briefly offers opportunities for photography, though patience and a telephoto lens will be necessary given its small stature and elevated foraging positions.