According to Dénes et al. (2011) and Seipke et al. (2011), vocalizations of the White-collared Kite apparently show no meaningful differences from known Gray-headed Kite calls. Mostly heard was the wuh-wuh- wuh..., or caw-caw-caw..., in series of 10–20, in flight, which may elicit response from individuals of nearby territories. The authors also describe the cat-like eeeAAW, often during the Butterfly Display flight, also similar to that of the Gray-headed Kite (Thorstrom 1997).