Cordilleran Flycatcher - Empidonax occidentalis

Song: Three parted song has same pattern as Pacific-Slope Flycatcher "tisp klseewii ptik". The final explosive "ptik" decreases in pitch from the first to the second syllable. Call notes of male are a two-parted "tee-seet" which is distinctive other calls include a rising "tsweep"" or "tseeweep".

Sound: Geoffrey A. Keller (Macaulay Library, Cornell # 105315); 1993 Jun 16; USA, Colorado; 16 km NE from Estes Park, Dunraven Recreation Area, Larimer Co; Adult; Primary Sound;