Sirystes

The Sirystes (Sirystes sibilator) is a genus of bird in the Tyrannidae family. It contains the following species :
 * Sibilant Sirystes, ''Sirystes sibilator
 * White-rumped Sirystes, ''Sirystes albocinereus
 * Todd's Sirystes, ''Sirystes subcanescens
 * Choco Sirystes / Western Sirystes, ''Sirystes albogriseus