genus
Firecrests, Goldcrests, and Allies
Regulus
Field notes
Regulus is a genus of bird in the family Regulidae.
It contains all kinglet species aside from the ruby-crowned kinglet (Corthylio calendula), which was formerly classified in Regulus but is now assigned to its own genus.
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Range
Greener is more native, amber more introduced; paler is less certain. How this was decided
Most observed native firecrests, goldcrests, and allies All
Native to the US, by observations.