FIGURE 4 in Calls distinguish species of Antbirds (Aves: Passeriformes: Thamnophilidae) in the genus Pyriglena

FIGURE 4. Spectrograms of songs of Pyriglena populations. (A) pacifica, Tumbes Reserve Zone, Tumbes, Peru (ISL KJZ.120.028). (B) castanoptera San José de Lourdes, Cajamarca, Peru (ISL DFL.007.007). (C) marcapatensis, Cerro Saucipata, Cusco, Peru (XC 23005). (D) hellmayri 35 km N of Caranavi, La Paz, Bolivia (ML 33740). (E) maura Perseverancia, Santa Cruz, Bolivia (ISL TAP.026.001). (F) maura Chapada dos Guimarães, Mato Grosso, Brazil (ISL KJZ.074.029). (G) similis Rio Cristalino, Mato Grosso, Brazil (ISL KJZ.043.009). (H) interposita Caxiuanã, Pará, Brazil (ISL BMW.202.036). (I) leuconota Paragominas, Pará, Brazil (ISL BMW.098.034). (J) pernambucensis Reserva Florestal de Murici, Alagoas, Brazil (ISL KJZ.080.031). (K) atra Santa Luzia do Itanhi, Sergipe, Brazil (ISL BMW.157.023). (L) leucoptera precise location unknown, Rio Grande do Sul, Brazil (ISL TAP.023.009). Songs of picea were similar to those of castanoptera. Examples represent central tendencies. Archive acronyms in Appendix.