plural of olive-backed oriole

plural of rufous-backed antvireo

Cinnyris jugularis, a bird of the sunbird family Nectariniidae

Poecile rufescens, a small bird of the tit family Paridae

Parus monticolus, a small bird of the tit family Paridae

Larus schistisagus, a large gull.

Lanius excubitoroides, a species of bird in the family Laniidae.

Anthus hodgsoni, passerine bird of the pipit (Anthus) genus, which breeds across southern, north central and eastern Asia, as well as in the north-eastern European Russia

A species of fairywren, Malurus assimilis, of the Australia mainland except the east coast; formerly considered to be the same species as the variegated fairywren.

plural of purple-backed fairywren