Ruby-crowned Kinglet Regulus calendula


Barton, D. C.; Lindquist, K. E.; Henry, R. W.; Luna Mendoza, L. M. 2004. Landbird and waterbird notes from Isla Guadalupe, Mexico. West. Birds 35: 186-196.

del Hoyo, J.; Elliott, A.; Christie, D. 2006. Handbook of the Birds of the World, vol. 11: Old World Flycatchers to Old World Warblers. Lynx Edicions, Barcelona, Spain.

Further resources

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Media resources

Recommended citation
BirdLife International (2021) Species factsheet: Regulus calendula. Downloaded from on 16/01/2021. Recommended citation for factsheets for more than one species: BirdLife International (2021) IUCN Red List for birds. Downloaded from on 16/01/2021.