Song: Song of insect like high pitched chips run into a buzzy trill "sip-sip-sipp-tsip dzzi-dzzi-zzi-zzzziiii", tone similar to Grasshopper Sparrow's trill. Calls include a variety of metallic buzzing "tsip' "syiik" and "sii-sii chi" notes.
Sound: Fernando González-García (Biblioteca de Sonidos Aves de México); 2004 Mar 14; Mexico, Veracruz; El Lencero, Emiliano Zapata; Adult; Female; Call;