Song: Song a varied rich, enthusiastic punchy warble "spi-wip pit see-spit", may suggest a euphonia. Calls include sharp high lisped "sii-siip", quiet clucking "chik" or clipped "tuk" notes.
Sound: Antonio Celis-Murillo; 2006 May 1; Mexico, Quintana Roo; Reserva Ecologica El Eden; Adult; Male; Primary Sound; Subspecies (E. Penicillata pallaida);