Golden-crowned kinglet
Birds
The golden-crowned kinglet is a very small songbird in the family Regulidae that lives throughout much of North America. Wikipedia
Scientific name: Regulus satrapa
Mass: 0.19 oz (Adult)
Conservation status: Least Concern (Population increasing)
Family: Regulidae
Class: Aves
Genus: Regulus
Kingdom: Animalia
Source: Encyclopedia of Life