Pine Flycatcher

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Quick Facts

  • Scientific Name: Empidonax affinis
  • Spanish Name: Mosquero pinero
  • Family: Tyrannidae
  • Known Nicknames: Pine Flycatcher, Mexican Flycatcher
  • Average Length: 13–15 cm / 5–6 in
  • Average Weight: 9–12 g / 0.3–0.4 oz
  • Wingspan: 20–23 cm / 8–9 in
  • Key Feature: Olive-gray upperparts with two whitish wing bars and a distinct pale eye ring
  • Primary Diet: Insectivore
  • Range: Highlands of Mexico to western Guatemala and El Salvador
  • Habitat: Pine-oak forests and highland pine woodlands
  • Social Structure: Solitary or in pairs
  • Nesting/Breeding: Open cup nest in a tree fork
  • Conservation Status: Least Concern (LC)
  • Population Trend: Stable

The Pine Flycatcher (*Empidonax affinis*) is a small, energetic songbird of highland pine-oak forests from Mexico to Central America, often mistaken for its more widespread relative, the Cordilleran Flycatcher. Its general appearance is deceptively plain, with an olive-brown back, pale yellowish belly, and two whitish wing bars, but its unique characteristics lie in subtle field marks: a slightly longer bill, a more prominent pale eye-ring, and a distinctive, rising "peet-sit" call that cuts through the mountain air. A special feature is its tireless foraging style—sallying from exposed perches to snatch insects mid-flight, often returning to the same twig—and its preference for higher elevations, making it a secretive yet rewarding find for birders in misty, coniferous canopies.

Fun Facts

Despite its drab plumage, the Pine Flycatcher has a surprisingly aggressive streak: it will fearlessly dive-bomb much larger birds, like jays or hawks, that venture too close to its nest, sometimes even striking them in mid-air. It also possesses a peculiar “tail-pumping” behavior, rhythmically flicking its tail up and down while perched, a movement so constant it’s often the easiest way to spot it against a backdrop of pine needles. One of its most clever adaptations is its nest placement—it frequently builds its cup-shaped nest directly on top of an old woodpecker hole or a natural cavity in a conifer, using the existing structure as a sturdy base and camouflage.

Habitats & Distribution

The Pine Flycatcher is resident in highland pine-oak and pine-evergreen forests, typically between 1,500 and 3,500 meters in elevation. It favors open, montane woodlands with a sparse understory, often along forest edges or in areas with scattered clearings. Its geographical range extends from northern Mexico (primarily in the Sierra Madre Occidental and Oriental) south through the highlands of Guatemala, Honduras, and El Salvador, with isolated populations in Costa Rica and western Panama. It is generally absent from lowland regions and occurs exclusively within the Neotropical realm.

Behaviours & Reproduction

The Pine Flycatcher is a solitary, territorial insectivore. During the breeding season, males establish and defend a territory through persistent song, a distinctive *fitz-bew* call, and aggressive chases. Courtship involves the male performing short, fluttering flights and rapid wing vibrations while singing to attract a female. Once paired, the bond appears monogamous for the season. The female builds a small, cup-shaped nest of grasses, moss, and spiderwebs, typically placed in a fork of a pine or oak branch. She lays a clutch of 2-4 creamy-white eggs with fine brown speckles. Incubation is performed solely by the female, lasting about 14-15 days. Both parents feed the nestlings, which fledge around 15-17 days after hatching. No unique reproductive strategies like brood parasitism or cooperative breeding are reported for this species; its behavior is typical of the genus *Empidonax*, relying on cryptic nest placement and high parental investment to mitigate predation.

Diet

The Pine Flycatcher is an insectivorous bird, with its diet consisting almost exclusively of small flying insects such as flies, moths, beetles, and wasps, which it captures through agile, aerial sallies from a perch. Interestingly, it is highly specialized in its foraging strategy, often returning to the same prominent perch after each catch, a behavior known as "hawking." It also gleans insects from foliage and bark, and during colder months when insects are scarce, it will occasionally supplement its diet with small berries or seeds, though this is rare. Another notable fact is that its feeding activity peaks during dawn and dusk, coinciding with the highest insect activity, and it has been observed to follow army ant swarms to snatch flushed prey.

Colors

The Pine Flycatcher is a small, olive-brown bird with a pale yellowish wash on the belly and a whitish throat. It has two distinct pale wing bars, a faint pale eye ring, and a relatively short, thin bill. Its subtle, streaky olive-gray back provides effective camouflage against pine bark and shadowy forest foliage, lacking bold markings or bright colors.

Distribution Map

Places linked to this species. A sighting is never guaranteed.