ocrophus, Tringa, [123]

ocularis, Motacilla, [664]
Rhinomyias, [470], [734]

Œdicnemi, [154]

Œdicnemidæ, [154]

Œdicnemus magnirostris, [154]

œnanthe, Motacilla, [565]
Saxicola, [565]

œnochlamys, Callisitta, [610]
Dendrophila, [610]
Sitta, [610]

Œnopopelia, [56]
humilis, [56]

olivacea, Abrornis, [474]
Amaurornis, [75]
Cryptolopha, [474], [734]
Gallinua, [75]

olivaceus, Prionochilus, [639]