Chaco Earthcreeper vs Rufous Hornero

In short

The Chaco Earthcreeper and Rufous Hornero can be distinguished by their bill shape and nesting behavior. The Earthcreeper has a shorter, straighter bill and a contrasting white throat, while the Hornero is known for its distinctive mud nests and lacks the white throat.

Identification tips

• Bill shape: Chaco Earthcreeper has a shorter, straighter bill.
• Throat color: Look for the white throat in the Chaco Earthcreeper.
• Nesting: Rufous Hornero builds distinctive mud nests, which can be a giveaway.
• Plumage: Note the rufous forehead and dark belly of the Chaco Earthcreeper.

Size

Both species are similar in size, typical of ovenbirds, but the Rufous Hornero may appear bulkier due to its nesting habits.

Plumage

The Chaco Earthcreeper is relatively dark with a rufous forehead and dark belly, featuring a contrasting white throat. The Rufous Hornero is more uniformly rufous without the white throat.

Behaviour

Chaco Earthcreeper forages on the ground and in shrubs, seldom cocking its tail. Rufous Hornero is noted for its ground foraging and remarkable mud nest-building.

Habitat

Chaco Earthcreeper prefers scrub or light woodland, often with ground bromeliads in the north. Rufous Hornero is more adaptable, often found in open areas where it can build its mud nests.

Voice

Chaco Earthcreeper has slow, ringing notes, while Rufous Hornero's vocalizations are not detailed here.