Panama Flycatcher

Quick Facts

  • Scientific Name: Myiarchus panamensis
  • Spanish Name: Mosquero de Panamá
  • Family: Tyrannidae
  • Known Nicknames: Panamanian Flycatcher
  • Average Length: 18–20 cm / 7–8 in
  • Average Weight: 30–35 g / 1.1–1.2 oz
  • Wingspan: 25–30 cm / 10–12 in
  • Key Feature: Pale yellow belly and rufous-edged tail feathers
  • Primary Diet: Insectivore
  • Range: Pacific slope of Costa Rica and western Panama
  • Habitat: Dry forests, scrub, and semi-open lowlands
  • Social Structure: Solitary or in pairs
  • Nesting/Breeding: Tree cavities or old woodpecker holes
  • Conservation Status: Least Concern (LC)
  • Population Trend: Stable

The Panama Flycatcher (*Myiarchus panamensis*) is a striking, medium-sized tyrant flycatcher endemic to the lowlands of Panama and northwestern Colombia, where it thrives in forest edges and mangroves. Its general appearance features a brownish-olive back, pale yellow belly, and a distinctive gray throat and chest, crowned with a subtly crested head that gives it a sharp, alert profile. A unique characteristic is its loud, whistled “pip-pip-pip” call, which cuts through the humid air, while its special nesting behavior—often taking over abandoned woodpecker holes or termite nests—showcases its resourceful adaptation. With a restless, upright posture and quick sallies to snatch insects mid-flight, this bird is a lively and iconic inhabitant of its tropical range.

Fun Facts

Despite its name, the Panama Flycatcher is a surprisingly lazy hunter, often spending long periods perched motionless before making a single, precise sally to snatch an insect mid-air, a strategy that conserves energy in the humid heat. It has a quirky habit of twitching its tail upward and sideways in a constant, nervous-looking motion, possibly to flush out hidden prey or communicate with its mate. Unlike many flycatchers, it will occasionally supplement its insect diet with small fruits and berries, showing a flexible palate. Its call is a sharp, descending whistle that sounds almost like a question, often answered by its partner in a duet that strengthens their pair bond.

Habitats & Distribution

The Panama Flycatcher is found exclusively in the lowlands of the Pacific slope from southwestern Costa Rica through Panama into northwestern Colombia. Its habitat consists primarily of open and semi-open areas, including dry forests, forest edges, second-growth woodlands, mangroves, and scrubby pastures, often near water. It typically avoids dense, humid rainforest interiors, favoring instead more arid or disturbed environments with scattered trees and bushes.

Behaviours & Reproduction

This tyrant flycatcher is generally solitary or found in pairs, defending a territory during the breeding season. Mating is monogamous, with pairs forming through aerial chases and vocal duets. The male does not participate in nest construction; the female builds a cup-shaped nest in a tree cavity or abandoned woodpecker hole, lining it with soft plant fibers. A unique reproductive strategy is the female’s frequent use of shed snake skins as nest material, which is thought to deter predators. Clutch size is typically three to four eggs, incubated solely by the female for about two weeks, while the male defends the territory and feeds the female. Both parents then feed the altricial chicks, which fledge after roughly 16–18 days.

Diet

The Panama Flycatcher is an insectivorous bird, with its diet consisting almost entirely of a wide variety of flying and crawling insects, including beetles, ants, wasps, grasshoppers, and caterpillars. It employs a sit-and-wait hunting strategy, perching on exposed branches to sally out and snatch prey mid-air or glean it from foliage. An interesting aspect of its diet is that it is highly opportunistic, occasionally consuming small berries and fruits, particularly during the non-breeding season when insect prey may be less abundant. Furthermore, these flycatchers have been observed vigorously beating larger, hard-bodied insects against a branch to remove wings and legs before swallowing, a behavior that aids in digestion and prevents injury from sharp exoskeletons.

Colors

The Panama Flycatcher is a medium-sized tyrant flycatcher with a grayish-brown head and upperparts, a pale yellow belly, and a whitish throat. Its wings and tail show rufous-edged flight feathers and inner webs, giving a warm, rusty panel in the wing. It has a slight, pale eye-ring and a darker mask through the eye, but no bold stripes or spots. This subdued, streaky pattern provides camouflage in its shaded forest and edge habitats.