Roth & Scott (1987); Dorinny Lisboa de Carvalho (dados inéditos); Antônio Augusto Ferreira Rodrigues (verb.); Wege & Long (1995); E. O. Willis (in litt) in BirdLife International (2007); Aguirre (1962) in Roth & Scott (1987).
Further resources
Recommended citation
BirdLife International (2022) Important Bird Areas factsheet: Baixada Maranhense. Downloaded from
http://www.birdlife.org on 10/08/2022.
