Willow Flycatcher vs Buff-breasted Flycatcher

In short

The Willow Flycatcher and Buff-breasted Flycatcher are both small Empidonax flycatchers, but they can be distinguished by habitat preference and plumage details. The Willow Flycatcher is often found in riparian zones, while the Buff-breasted Flycatcher prefers open pine-oak woodlands. Vocalizations are crucial for identification, especially since their plumage is similar.

Identification tips

• Habitat: Check the surrounding environment; Willow Flycatchers prefer riparian areas, while Buff-breasted Flycatchers are found in pine-oak woodlands.
• Plumage: Look for the buffy wash on the breast of the Buff-breasted Flycatcher and the more pronounced eye-ring.
• Vocalization: Listen for the Willow Flycatcher's 'fitz-bew' call, which is absent in Buff-breasted Flycatchers.
• Location and Range: Consider the geographic location, as Buff-breasted Flycatchers are more localized to southeastern Arizona and parts of Mexico.

Size

Both species are small flycatchers, typical of the Empidonax genus, with no significant size difference noted.

Plumage

Willow Flycatchers have a generally grayish-olive plumage with a less distinct eye-ring, while Buff-breasted Flycatchers have a more pronounced buffy wash on the breast and a clearer eye-ring. The Buff-breasted Flycatcher also has a more contrasting face pattern.

Behaviour

Willow Flycatchers are primarily aerial foragers, capturing insects on the wing, whereas Buff-breasted Flycatchers may also forage in more open areas due to their habitat preferences.

Habitat

Willow Flycatchers are typically found in riparian zones across a broad range, from Maine to British Columbia and south to southern Arizona. In contrast, Buff-breasted Flycatchers are associated with open pine-oak woodlands and montane riparian forests, mainly in southeastern Arizona and parts of Mexico.

Voice

Vocalizations are a key differentiator: Willow Flycatchers have a distinctive 'fitz-bew' song, while Buff-breasted Flycatchers have a different song pattern. Listening for these calls is often the most reliable way to distinguish between the two.