The song of Ecuadorian Trogon is described as "a slow, short series of cow notes that often starts slowly and builds in strength, e.g., cuh-cuh-cuh-cuh-cow-cow-ców-ców-ców" (Ridgely and Greenfield 2001b). The song is similar to that of Black-tailed Trogon (Trogon melanurus) of Amazonia, but "perhaps [is] slightly faster paced" (Lane, in Schulenberg et al. 2010).
For a representative audio recording with sonogram, see audio
Calls of Ecuadorian Trogon include "a rapid series of churring notes: crra crra crra crra" (Lane, in Schulenberg et al. 2010).