Ash-throated Flycatcher vs Brown-crested Flycatcher

In short

The Ash-throated Flycatcher and the Brown-crested Flycatcher can be difficult to distinguish, especially in overlapping ranges. The most reliable field mark is the bill size: the Brown-crested has a noticeably larger and heavier bill. Both species have similar plumage, but subtle differences exist in their tail and wing patterns.

Identification tips

1. Bill Size: Look for the larger, heavier bill of the Brown-crested Flycatcher. 2. Tail and Wing Pattern: Check for more rufous in the tail and wings of the Brown-crested. 3. Vocalization: Listen for the louder, more emphatic calls of the Brown-crested. 4. Habitat: Consider the habitat; Brown-crested prefers mature riparian areas, while Ash-throated is more versatile. 5. Season and Location: Be aware of the range overlap in the southern and southeastern U.S., especially during migration.

Size

The Brown-crested Flycatcher is generally larger with a heavier bill compared to the Ash-throated Flycatcher.

Plumage

Both species have similar overall plumage with grayish heads and yellowish underparts. However, the Ash-throated Flycatcher typically has paler underparts and a less contrasting tail pattern, while the Brown-crested often shows more rufous in the tail and wings.

Behaviour

Both species are cavity-nesters and can be seen sallying from perches to catch insects. The Brown-crested Flycatcher tends to be more canopy-dwelling and secretive.

Habitat

Ash-throated Flycatchers are found in a variety of open habitats including desert scrub and open woodlands, while Brown-crested Flycatchers prefer mature riparian forests and areas with large trees or cacti.

Voice

Vocalizations are crucial for identification; the Brown-crested Flycatcher has a louder and more emphatic call compared to the softer call of the Ash-throated Flycatcher.