Cyphorhinus interpositus ( Todd, 1932 )

Cyphorhinus interpositus ( Todd, 1932)

English name: Rondonia Wren

Portuguese name: Uirapuru-de-orelha-alaranjada

Type-locality: Vila Braga, Pará, Brazil.

Diagnosis: belly greyish brown (M 10YR 5/2, 5/3); crown red (M 2.5YR 4/8) with cinnamon brown (S 7YR 4/ 4).

Voice: series of simple phrases, each with few notes (3–5), short duration (1.5– 2.3 s), very slow pace (2.1–2.5 note/s), elevated mean peak frequency (3385.5 Hz), the longest minimum note duration among all the species and longest average note duration ( 0.17 s). Each phrase is repeated various times before changing to the next.

Distribution: the southern bank of Amazon River from the eastern bank of Rio Madeira to the western bank of Rio Tapajós ( Figure 4 View FIGURE 4 ).