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Regulus calendula

(Ruby-crowned Kinglet)


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Common Names

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Click on the language to view common names.

Common Names in Czech:


Common Names in Danish:


Common Names in Dutch:


Common Names in English:

Ruby-crowned Kinglet, dusky kinglet, ruby-crown, Ruby-crowned Warbler, Ruby-crowned Wren, Sitka kinglet

Common Names in Estonian:


Common Names in Faroese:


Common Names in Finnish:


Common Names in French:

Roitelet , roitelet à couronne rubis, roitelet à couronne rubis

Common Names in German:

Rubingoldh, Rubingoldhähnchen

Common Names in Haitian Creole French:

Ti Kouw

Common Names in Icelandic:


Common Names in Italian:

Regolo Americano

Common Names in Japanese:

Rubi-Kikuitadaki, Rubiakikuitadaki, ルビーキクイタダキ

Common Names in Latin:

Corthylio calendula

Common Names in Lithuanian:

Raudongalvis Nyk

Common Names in Norwegian:


Common Names in Polish:


Common Names in Slovak:


Common Names in Slovenian:

Rubinastoglavi Kraljicek

Common Names in Spanish:

Reyezuelo, Reyezuelo Cornudo Rojo, Reyezuelo De Mo, Reyezuelo De Rojo

Common Names in Spanish (Dominican Republic):


Common Names in Spanish (Mexico):

Reyezuelo De Rojo


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Physical Description

Adult Female: Wings : Secondaries: olive green with yellowish edges Tertials: olive green with yellowish edges.Adult Male: Head : Crown: small red patch Face : Eye Ring: white Bill: black Length : short Body: Underparts: dusky-buff to whitish Upperparts: olive-green.


Olive-gray above; dusky colored under parts; wings black with two white wing bars; ruby-colored crown patch on the males (not always visible).


About 3.75-4.25 inches long, with a wingspan of 6.75 to 7.5 inches. Adults weigh about 0.2 ounces .


The primary habitat of the Ruby-crowned Kinglet is coniferous forests , but also includes mixed forests.

Vegetation: tropical lowland evergreen forest, pine forests • Maximum Elevation: 1,300 meters • Foraging Strata: Canopy • Center of Abundance: Upper subtropical: higher slopes, 500-1,600 m.; subtropics. • Sensitivity to Disturbance: High

Typically found at an altitude of 0 to 4,622 meters (0 to 15,164 feet).[1]

Ecology: List of Habitats :


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The diet consists mostly of insects and spiders and occasionally seeds, fruits, and tree sap . This kinglet forages by moving among the tree branches and leaves, moving its wings to flush prey . It also picks insects off of branches, leaves, and needles of the trees.


This species does not breed in the Southeast, but the breeding season begins in late May and extends to mid-July. Nesting usually occurs in conifer or mixed-conifer forest . The nest is usually 4.5-9 m (15-30 feet) high in a conifer. The female builds the nest out of moss, lichen, leaves, and spider webs. The nest is suspended under a branch , usually near the branch's outer edge . The female lays 5-11 (usually 7-9) eggs that she incubates for approximately 12 days. The young are altricial and fledge about 12 days after hatching . Both the male and female tend to the young while they are in the nest and for a period after fledging.




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Regulus calendula (Linnaeus, 1766) • Regulus calendula Linnaeus 1766


Name Status: Accepted Name .

Last scrutiny: 24-Jun-1996

Similar Species

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Golden-Crowned Kinglet, Hutton's Vireo. The Ruby-Crowned Kinglet may be distinguished from the similar Golden-Crowned Kinglet by its eye-ring.

Members of the genus Regulus

ZipcodeZoo has pages for 34 species and subspecies in this genus:

R. calendula (Ruby-Crowned Kinglet) · R. calendula calendula (Ruby-Crowned Kinglet) · R. calendula cineraceus (Western Ruby-Crowned Kinglet) · R. calendula grinnelli (Ruby-Crowned Kinglet) · R. calendula obscurus (Dusky Kinglet) · R. goodfellowi (Flamecrest) · R. ignicapilla (Common Firecrest) · R. ignicapilla caucasicus (Common Firecrest) · R. ignicapilla ignicapilla (Firecrest (European)) · R. ignicapillus (Firecrest) · R. ignicapillus ignicapillus (Firecrest) · R. madeirensis (Madeira Firecrest) · R. madeirensis madeirensis (Madeira Firecrest) · R. regulus (Goldcrest) · R. regulus azoricus (Goldcrest (Sao Miguel)) · R. regulus buturlini (Caucasian Goldcrest) · R. regulus coatsi (Goldcrest) · R. regulus ellenthalerae (Goldcrest) · R. regulus himalayensis (Goldcrest) · R. regulus hyrcanus (Goldcrest) · R. regulus inermis (Goldcrest (Western Azores)) · R. regulus japonensis (Goldcrest) · R. regulus regulus (Goldcrest) · R. regulus sanctaemariae (Goldcrest (Santa Maria)) · R. regulus satrapa (Golden-Crowned Goldcrest) · R. regulus sikkimensis (Goldcrest) · R. regulus teneriffae (Goldcrest) · R. regulus tristis (Goldcrest) · R. regulus yunnanensis (Goldcrest) · R. satrapa (Golden-Crowned Kinglet) · R. satrapa apache (Golden-Crowned Kinglet) · R. satrapa olivaceus (Golden-Crowned Kinglet) · R. satrapa satrapa (Golden-Crowned Kinglet) · R. teneriffae (Canary Islands Kinglet)

More Info

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Further Reading

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Data Sources

Accessed through GBIF Data Portal March 13, 2008:



  1. Mean = 975.960 meters (3,201.969 feet), Standard Deviation = 1,259.520 based on 4,836 observations. Altitude information for each observation from British Oceanographic Data Centre. [back]
Last Revised: 2014-04-23