The first U.S. record of Eared Trogon was in October, 1977. The Eared Trogon had distinctive calls. One is a loud EEE-chuck. Another is kreee. These and other vocalizations sound in no way like an Elegant Trogon.
Eared trogons have a slate-colored bill and no eye ring.
They do not have a white breast band. The wide tail has a bluish cast.