Birds diurnal

Southern Beardless-Tyrannulet

Camptostoma obsoletum

The Southern Beardless-Tyrannulet is a tiny dynamo of the canopy, known for its expressive crest and restless energy. A master of the treetops, this vocal little flycatcher is a common but delightful visitor to gardens across Central and South America.

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Quick Identification

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Size

Length: 9.5–10.5 cm (3.7–4.1 in); Weight: 7.5–9 g (0.26–0.32 oz)

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Colors

Dull olive-grey upperparts with a greyish-brown crown; pale yellow to whitish underparts; two thin, pale yellowish wing bars.

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Key Features

Bushy, often-raised crest giving the head a peaked appearance
Small, dark bill notably lacking rictal bristles (beardless)
Restless, warbler-like foraging movement
Two distinct but narrow pale wing bars

When You’ll See Them

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Activity pattern diurnal

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Peak hours 6:30 AM – 10:00 AM, 3:30 PM – 5:30 PM

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Season Year-round

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Diet Primarily insectivorous, gleaning spiders and small insects from leaves; also consumes small berries and fruits regularly.

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Habitat Open woodlands, scrubby areas, gallery forests, and suburban gardens with mature trees.

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Behavior

The Southern Beardless-Tyrannulet is a tiny, energetic bird that behaves more like a kinglet or a warbler than a traditional "sit-and-wait" flycatcher. It is constantly in motion, flitting through the outer foliage of trees and shrubs to glean insects. One of its most endearing qualities is its expressive crown; it frequently raises its head feathers into a messy, pointed crest, especially when curious or territorial.

These birds are usually found singly or in pairs, though they frequently join mixed-species foraging flocks to move through the canopy. They are highly vocal, often giving away their location with a series of thin, descending whistles. Despite their diminutive size, they are quite bold and have adapted well to human-altered landscapes, making them a common sight in suburban gardens and parks throughout their range.

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Camera Tips

To capture high-quality footage of the Southern Beardless-Tyrannulet, camera placement is critical. These birds spend most of their time in the mid-to-high canopy, rarely venturing to the ground. Position your AI camera on a sturdy limb or a mounting pole at least 6 to 8 feet high. Focus the lens on the "edges" of your yard—where a hedge meets a clear space or near the outer branches of a fruiting tree—as these are their favorite corridors for movement.

While they won't visit seed feeders, they are highly attracted to water. A birdbath with a solar-powered dripper or a small fountain is the best lure for this species. Because they are so small and move so quickly, place the camera within 3 to 5 feet of the water source. Use a high-speed trigger setting or a high-frame-rate video mode to ensure you catch their rapid-fire bathing rituals without motion blur.

Lighting is your best friend when trying to distinguish this bird from other similar-looking flycatchers. Try to position your camera so it faces away from the morning sun (North or South) to avoid silhouetting. The early morning light will highlight the subtle yellow in their bellies and the texture of their crest. If your backyard has native berry-producing shrubs like Lantana, aim a secondary camera there, as they will often pause for several seconds to forage, providing a perfect window for the AI to identify the species.

Similar Species

Species that look similar or are commonly confused with Southern Beardless-Tyrannulet.

Northern Beardless-Tyrannulet

Nearly identical visually but has a different song and is found from the Southwestern US through Mexico.

Yellow-bellied Elaenia

Significantly larger with a more prominent crest and a heavier, broader bill.

Mouse-colored Tyrannulet

Lacks the yellowish tint on the belly and has much more obscure wing bars.

Frequently Asked Questions

Southern Beardless-Tyrannulets are most active during the early morning hours, roughly 30 minutes after sunrise, and again in the late afternoon before dusk when insect activity is high.

The best way to attract them is by providing moving water, such as a birdbath with a dripper, and planting native, berry-producing shrubs that also attract the small insects they eat.

They eat a variety of small insects, larvae, and spiders which they glean from foliage. They also supplement their diet with small berries and fruit.

Yes, they are very adaptable and are frequently found in suburban environments, urban parks, and backyards that have mature trees and shrubs.

The Southern Beardless-Tyrannulet is smaller, has a much shorter and more pointed bill, and lacks the white hidden crown-patch often found in the larger Yellow-bellied Elaenia.

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