Bolivian Antpitta vs Chami Antpitta

In short

The Bolivian Antpitta and Chami Antpitta are both small, elusive birds found in the Andes, but they differ in plumage and vocalizations. The Bolivian Antpitta typically has a more uniform brown plumage, while the Chami Antpitta shows more contrast with its rufous tones. Vocalizations are a key differentiator, with distinct songs for each species.

Identification tips

1. Listen for vocalizations: Each species has a distinct song. 2. Observe plumage tones: Look for more uniform brown in Bolivian Antpitta and rufous tones in Chami Antpitta. 3. Consider geographic location: Bolivian Antpitta is found in Bolivia, while Chami Antpitta is in Colombia.

Size

Both species are similar in size, typical of small antpittas, making size an unreliable differentiator.

Plumage

The Bolivian Antpitta (Grallaria cochabambae) generally exhibits a more uniform brown plumage, whereas the Chami Antpitta (Grallaria alvarezi) often displays more rufous tones, particularly on the underparts and wings.

Behaviour

Both species are secretive and often remain hidden in dense undergrowth, making them difficult to observe directly.

Habitat

Both species inhabit montane forests in the Andes, but the Bolivian Antpitta is found specifically in Bolivia, while the Chami Antpitta is more widespread in Colombia.

Voice

Vocalizations are distinct between the two: the Bolivian Antpitta's song is different from the Chami Antpitta's, which can be a reliable field mark when heard.