World Bird List

Species factsheet
Ruby-crowned Kinglet (Regulus calendula)

Order: Regulus calendula
Family: Goldcrests, Kinglets (Regulidae)

Danske navn: Rubinfuglekonge

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
grinnelli Alaska, sw Canada and nw USA
calendula c and e Canada, sw, wc and e USA
obscurus Guadalupe I. (off nw Mexico)