Dark-eyed Junco vs Black-and-white Warbler

In short

The Dark-eyed Junco and Black-and-white Warbler are easily distinguished by their behavior and plumage. The junco is a ground-dwelling sparrow with a distinctive white outer tail flash, while the warbler is a tree-foraging bird with striking black-and-white stripes. Observing their foraging habits and plumage patterns will help separate these two species in the field.

Identification tips

• Observe behavior: Juncos forage on the ground, while Black-and-white Warblers are seen creeping along tree trunks.
• Check plumage: Look for the junco's white outer tail feathers and the warbler's black-and-white stripes.
• Consider habitat: Juncos are more likely in open areas, while warblers prefer forest interiors.
• Listen for calls: Although not the most reliable, juncos have a simple trill, and warblers have a high-pitched song.

Size

The Dark-eyed Junco is slightly larger and bulkier than the Black-and-white Warbler.

Plumage

The Dark-eyed Junco has a gray or blackish hood with a whitish breast and belly, and white outer tail feathers that are visible in flight. In contrast, the Black-and-white Warbler features a unique, sharply defined black-and-white striped plumage across its body.

Behaviour

Dark-eyed Juncos typically forage on the ground, while Black-and-white Warblers are known for their nuthatch-like behavior, creeping along tree trunks and limbs to forage.

Habitat

Dark-eyed Juncos are often found in open woodlands and forest edges, whereas Black-and-white Warblers prefer interior forests but can also be seen in forest edges and mixed flocks.

Voice

The vocalizations of these species differ, with the junco having a simple trill and the warbler producing a high-pitched, thin song. However, vocalizations are not the most reliable field marks for distinguishing these species.