The Olive-sided Flycatcher's bold 'quick-THREE-beers' song rings from the tops of dead snags in boreal and montane forests. It is the quintessential sentinel bird, sitting conspicuously at the top of the tallest dead tree. White tufts that sometimes protrude from the breast sides are diagnostic. It has declined significantly in recent decades.
Best time to see a Olive-sided Flycatcher
The best time to see a Olive-sided Flycatcher is April–June, when about 61% of U.S. sightings happen, based on 7,000 research-grade iNaturalist observations.
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Recent Olive-sided Flycatcher sightings near you
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