. "Animalia" . "Aves" . . . "Opisthoprora euryptera" . . "Trochiliformes" . . "Trochilidae" . . "Chordata" . . . . "Mountain Avocetbill" . . . . . "Opisthoprora" . "Opisthoprora euryptera (Loddiges 1832)" . . "(Loddiges 1832)" .