Motacilla flava, a small passerine bird in the family Motacillidae

Emberiza aureola, a passerine bird in the bunting family Emberizidae.

Emberiza chrysophrys, a passerine bird in the bunting family Emberizidae.

Xanthocephalus xanthocephalus, a medium-sized blackbird, and the only member of the genus Xanthocephalus.

A yellow-brown species of ant, Anoplolepis gracilipes, which forms large colonies and is an invasive pest in many countries.

plural of yellow crazy ant

plural of yellow lady's slipper

Cypripedium parviflorum, a type of lady's slipper orchid native to North America.

A species of pierid butterfly, Eurema laeta, inhabiting Asia and Australia.

plural of spotless grass yellow