Cinereous Antshrike vs Bluish-slate Antshrike

The Cinereous Antshrike and Bluish-slate Antshrike are similar Thamnomanes species often found in mixed-species flocks in Amazonia. The most reliable field mark is the female plumage: Cinereous females are warm brown, while Bluish-slate females have gray upperparts and bright cinnamon-rufous underparts. Both species have a similar structure and foraging behavior.

1. Female plumage: Look for warm brown in Cinereous females vs. gray and cinnamon-rufous in Bluish-slate females. 2. Foraging height: Cinereous often forages higher in the midstory. 3. Vocalization: Listen for the sharp, fast rattle of the Cinereous Antshrike in flocks.

Both species are similar in size, typical of the Thamnomanes genus.

Female Cinereous Antshrikes are warm brown throughout, while female Bluish-slate Antshrikes are gray above with bright cinnamon-rufous underparts. Males of both species are similar in their bluish-slate coloration.

Both species are regular members of mixed-species flocks, with the Cinereous Antshrike often foraging higher in the forest midstory compared to the Bluish-slate Antshrike.

The Cinereous Antshrike is found across most of Amazonia, except southwestern regions, while the Bluish-slate Antshrike inhabits lower stories of lowland evergreen forests, both terra firme and seasonally flooded areas.

The Cinereous Antshrike is noted for its sharp, fast rattle call, often heard in mixed-species flocks. Specific vocal differences with the Bluish-slate Antshrike are not detailed.