Chotoy Spinetail vs Plain-crowned Spinetail

In short

The Chotoy Spinetail and Plain-crowned Spinetail are both members of the Furnariidae family, but they can be distinguished by their plumage and vocalizations. The Chotoy Spinetail has a distinctive black-and-yellow throat and heavily streaked upperparts, while the Plain-crowned Spinetail has a more uniform appearance with a plain crown. Their vocalizations also differ, with the Chotoy Spinetail producing a low-pitched, guttural series of notes.

Identification tips

1. Look for the black-and-yellow throat on the Chotoy Spinetail. 2. Note the plain crown of the Plain-crowned Spinetail. 3. Listen for the low-pitched, guttural notes of the Chotoy Spinetail. 4. Observe the nesting behavior; the Chotoy Spinetail builds a large, globular nest.

Size

Both species are similar in size, typical of small spinetails, but specific measurements are not provided.

Plumage

The Chotoy Spinetail features a striking black-and-yellow throat and heavily streaked upperparts, whereas the Plain-crowned Spinetail has a plain crown and lacks the distinctive throat pattern.

Behaviour

Both species are often observed foraging alone or in pairs, primarily for arthropods. The Chotoy Spinetail is noted for building a large, globular nest with a long lateral entrance.

Habitat

The Chotoy Spinetail is commonly found in the Chaco and Espinal ecoregions, while the Plain-crowned Spinetail has a broader range but specific habitat preferences are not detailed.

Voice

The Chotoy Spinetail's vocalization is a low-pitched, guttural series of notes, distinctive in its range. The Plain-crowned Spinetail's vocalizations are not detailed here, but they are likely less distinctive.