Birds diurnal

Short-tailed Pygmy-Tyrant

Myiornis ecaudatus

The world's smallest perching bird is a hidden gem of the tropical canopy. Looking more like a large bumblebee than a bird, the Short-tailed Pygmy-Tyrant proves that the most extraordinary wildlife discoveries often come in the smallest packages.

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Quick Identification

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Size

Length: 6.5-7 cm (2.5-2.8 in); Weight: 4.2-4.8 g (0.15-0.17 oz)

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Colors

Olive-green upperparts, gray head with distinct white 'spectacles' around the eyes, white throat, and a pale yellow wash on the belly. Sexes appear identical.

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Key Features

World's smallest perching bird
Extremely short, almost non-existent tail
Large-headed appearance with white eye-rings
Rapid, insect-like wingbeats

When You’ll See Them

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Activity pattern diurnal

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Peak hours 7:00 AM - 10:00 AM and 3:30 PM - 5:30 PM

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Season Year-round, with peak nesting activity between February and June.

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Diet Strictly insectivorous; feeds on tiny arthropods, gnats, and small spiders by hover-gleaning from leaf surfaces or snatching them mid-air.

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Habitat Humid lowland forests, second-growth woodland, forest edges, and occasionally shaded gardens or cacao plantations.

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Behavior

The Short-tailed Pygmy-Tyrant is a marvel of the avian world, often mistaken for a large beetle or a dragonfly due to its diminutive size and buzzing flight pattern. Unlike many flycatchers that sit stoically on a branch, this species is perpetually in motion, flitting through the mid-to-high canopy with a unique 'gnat-like' energy. They are generally solitary or found in pairs, maintaining small territories through cricket-like trilling calls that are often easier to hear than the bird is to see.

Despite their size, they are surprisingly bold, frequently foraging in the open along forest edges or in clearings. Their social interactions are brief but intense, involving rapid chases through the foliage. For the backyard observer in South America, they rarely visit traditional bird feeders, as they are strictly focused on the hunt for tiny invertebrates, showing little interest in human activity unless a garden provides the perfect micro-habitat of dense, insect-rich shrubbery.

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Camera Tips

Capturing the Short-tailed Pygmy-Tyrant on a trail camera is a high-level challenge due to their size and speed. Because they weigh less than a nickel, standard PIR (Passive Infrared) sensors on many budget cameras may fail to trigger. To succeed, use a camera with a 'High' sensitivity setting or, ideally, a device capable of high-frequency time-lapse mode (one photo every 5-10 seconds) during their peak morning activity hours. Position your camera at eye level (about 5-8 feet up) near the edge of a wooded area where the vegetation transitions from dense to open.

Focus is critical for a bird this small. If your camera allows for focal adjustments, set it for a close-range 'macro' zone of 3 to 6 feet. Look for 'song perches'—thin, bare twigs at the end of a branch where a male might sit to vocalize. These perches are your best bet for a clear, still shot. Since they don't eat seeds, you cannot lure them with a standard feeder. However, a fine-mist water dripper or a specialized hummingbird mister can be an irresistible attractant for them to bathe or drink, especially during the dry season.

Lighting is your best friend when filming this species. Because they have dark olive and gray tones, they can easily disappear into the shadows of the canopy. Aim your camera toward the west during morning hours to catch the direct morning sun on their pale bellies. High shutter speeds (1/1000s or faster) are necessary to freeze their rapid wing movements, which can look like a blur even in bright light. If using video, record at 60fps or higher so you can review the footage in slow motion to appreciate their unique hovering behavior.

Similar Species

Species that look similar or are commonly confused with Short-tailed Pygmy-Tyrant.

Black-capped Pygmy-Tyrant

Very similar in size, but has a distinct dark cap on the head rather than the uniform gray crown of the Short-tailed.

Double-banded Pygmy-Tyrant

Slightly larger with a more noticeable tail and two distinct pale wing bars which the Short-tailed lacks.

Frequently Asked Questions

They are most active in the early morning hours, typically between 7:00 AM and 10:00 AM, when they forage for insects. They often have a second peak of activity in the late afternoon before dusk.

The best way to attract them is to maintain a 'wild' garden with native flowering plants that attract small gnats and midges. Adding a water mister or a very shallow, dripping birdbath can also lure them in for a drink.

They are insectivores that specialize in tiny prey. Their diet consists almost entirely of small insects, gnats, and spiders which they glean from the undersides of leaves or catch in short aerial bursts.

They are common in areas where suburban gardens border tropical lowland forests or plantations. They are less common in highly urbanized centers lacking significant canopy cover.

Look for the 'missing' tail; no other bird in their range has such a drastically short tail. Their white 'spectacles' and cricket-like buzzing call also distinguish them from other small flycatchers.

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