Clam`a·to'res noun plural [ Latin clamator , plural clamatores , a bawler.] (Zoology) A division of passerine birds in which the vocal muscles are but little developed, so that they lack the power of singing. Found on http://www.encyclo.co.uk/webster/C/86
suborder Clamatoresnoun used in some classification systems; a suborder or superfamily nearly coextensive with suborder Tyranni; Passeriformes having relatively simple vocal organs and little power of song; clamatorial birds Found on https://www.encyclo.co.uk/local/20974