Spot-backed Puffbird vs Rusty-breasted Nunlet

In short

The Spot-backed Puffbird and Rusty-breasted Nunlet can be distinguished primarily by their plumage and bill structure. The Spot-backed Puffbird has a more contrasting plumage with a distinctive spotted back, while the Rusty-breasted Nunlet is more uniformly brown with a pale rufous underbelly. Both species belong to the Puffbird family but differ in their habitat preferences and vocalizations.

Identification tips

1. Look for the spotted back of the Spot-backed Puffbird. 2. Note the pale rufous underparts of the Rusty-breasted Nunlet. 3. Observe the habitat: more open areas suggest Spot-backed Puffbird, while dense forest indicates Rusty-breasted Nunlet. 4. Listen for the repetitive call of the Spot-backed Puffbird.

Size

Both species are similar in size, typical of small puffbirds, but the Spot-backed Puffbird may appear slightly bulkier due to its more robust bill.

Plumage

The Spot-backed Puffbird features a spotted back and a more contrasting plumage overall, while the Rusty-breasted Nunlet is dull brown above and pale rufous below with a pale supraloral. The Nunlet's plumage is less contrasting.

Behaviour

Both species are typically seen perched quietly in the mid to lower levels of forests, but the Spot-backed Puffbird may be more conspicuous due to its contrasting plumage.

Habitat

Spot-backed Puffbirds are often found in more open woodland and forest edges, while Rusty-breasted Nunlets prefer denser, more humid forest interiors.

Voice

The Spot-backed Puffbird has a distinct, repetitive call that can help in identification, whereas the Rusty-breasted Nunlet's vocalizations are less documented but generally softer.