Olive-sided Flycatcher Gallery
Conotopus cooperi
eBird describes the Olive-sided Flycatcher this way: tocky flycatcher that almost always perches conspicuously on a high bare perch with an upright posture. From the front, look for dark sides creating a vest, with a bright white stripe from throat to belly. White patches on the sides of rump are sometimes visible from behind. Most similar to pewees but larger and larger-billed, with more contrasting vest. Feeds on insects. Breeds in clearings and bogs in boreal or mountainous forests, but can be found in migration in open habitats with a mixture of woods and clearings. Distinctive whistled song is often likened to “quick, three beers;” also listen for “pip” call notes. All About Birds offers additional descriptive information about the Olive-sided Flycatcher: The Olive-sided Flycatcher whistles an instantly recognizable quick, three beers! across its rugged habitat of coniferous mountain forests, bogs, and muskeg. This husky, barrel-chested flycatcher is the largest of the pewees, with heavy grayish markings on the sides as if the bird is wearing a waistcoat. Olive-sided Flycatchers are vigorous defenders of their territory and nest, chasing rivals and predators with the fervor of a kingbird. Look for them singing from open perches in the highest parts of live or dead trees. These birds are also fairly common in recently burned forests.
I saw and photographed the Olive-sided Flycather perched on a dead tree near Skyline Drive in the Davis Mountains State Park on September 1, 2020. This stoic little bird sat still just long enough for a couple of photos!
“Cool Facts” about the Olive-sided Flycatcher from All About Birds…
- Of all the flycatcher species that breed in the United States, Olive-sided Flycatcher has the longest migration, with some migrating between central Alaska and Bolivia, a distance of 7,000 miles.
- Olive-sided Flycatchers are frequently found in burned forests. The opened area and many dead trees (for perches) may help it to catch flying insects, which can be abundant after forest fires.
- Olive-sided Flycatchers defend their nests aggressively. A pair was observed to knock a red squirrel off a nest limb and chase it away.
- The oldest recorded Olive-sided Flycatcher was at least 11 years, 1 month old when it was recaptured and re-released during banding operations in California.