CreatureData

Ruby-crowned kinglet

Corthylio calendula (Linnaeus, 1766)

Status not recordedsongbirds

The ruby-crowned kinglet (Corthylio calendula) is a species in the family Regulidae, order Passeriformes. Recorded adults weigh 6.19 g to 6.7 g and live up to 5.6 years.

Ruby-crowned kinglet (Corthylio calendula)
Photo: Wildreturn · CC BY 2.0 · Wikimedia Commons

Quick facts about the ruby-crowned kinglet

Weight
6.19 g – 6.7 gsrc for Weight
Length
Not recorded
Lifespan
5.6 yearssrc for Lifespan
Diet
Invertivoresrc for Diet
Main food
Not recorded
Habitat
forestsrc for Habitat
Egg incubation
12 dayssrc for Egg incubation
Young per litter or clutch
8src for Young per litter or clutch
Age at maturity
12 monthssrc for Age at maturity
Litters or clutches a year
1src for Litters or clutches a year
Lifestyle
Perchingsrc for Lifestyle
Migration
Migratorysrc for Migration
Conservation status
Not recorded
Countries on record
Not recorded

Where does the ruby-crowned kinglet live?

Not recorded

What is the ruby-crowned kinglet?

Quoted from WikipediaCC BY-SA 4.0

The ruby-crowned kinglet (Corthylio calendula) is a very small passerine bird found throughout North America. It is a member of the kinglet family. The bird has olive-green plumage with two white wing bars and a white eye-ring. Males have a red crown patch, which is often concealed. The sexes are identical apart from the crown, and juveniles are similar in plumage to adult females. It is one of the smallest songbirds in North America. The ruby-crowned kinglet is not closely related to other kinglets and was moved from Regulus to its own genus, Corthylio, in 2021. Three subspecies are currently recognized.

The kinglet is mostly migratory, and its range extends from northwest Canada and Alaska south to Mexico. Its breeding habitat is spruce-fir forests in the northern and mountainous regions of the United States and Canada. The ruby-crowned kinglet builds a cup-shaped nest, which may be pensile or placed on a tree branch and is often hidden. It lays up to 12 eggs, and has the largest clutch of any North American passerine for its size. It is mainly insectivorous, but also eats fruits and seeds.

From the Wikipedia article “Ruby-crowned kinglet” (en.wikipedia.org/w/index.php?title=Ruby-crowned_kinglet&oldid=1380703397), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.

Is the ruby-crowned kinglet endangered?

No conservation assessment is recorded for this species in our sources. That is not the same as being safe: it has not been matched to an assessment.

How is the ruby-crowned kinglet classified?

  1. kingdomAnimalia
  2. phylumChordata
  3. classAves
  4. orderPasseriformes
  5. familyRegulidae
  6. genusCorthylio
  7. SpeciesCorthylio calendula (Linnaeus, 1766)

Synonyms Motacilla calendula, Regulus calenda, Regulus calendula

Other names and names in other languages (50)
  • RickyEnglish
  • CikwicAtikamekw
  • Американско кралчеBulgarian
  • Dreolan kabell ruzBreton
  • reietó americàCatalan
  • Рубин вуян кож кӓзӓляMari
  • králíček americkýCzech
  • Dryw corunrhuddemWelsh
  • RubinfuglekongeDanish
  • RubingoldhähnchenGerman
  • rubenkrona regoloEsperanto
  • ReyezueloSpanish
  • Reyezuelo de moño rojoSpanish
  • Reyezuelo de rojoSpanish
  • Reyezuelo MatraquitaSpanish
  • Reyezuelo rubíSpanish
  • rubiin-pöialpoissEstonian
  • سسک تاجیاقوتیPersian
  • rubiinihippiäinenFinnish
  • Krúnureyður títlingskongurFaroese
  • Roitelet à couronne rubisFrench
  • Ti Kouwòn woujHaitian Creole
  • מלכילון אמריקניHebrew
  • crvenokruni kraljićCroatian
  • rubinfejű királykaHungarian
  • RauðkollurIcelandic
  • Regolo americanoItalian
  • ルビアキクイタダキJapanese
  • ルビーキクイタダキJapanese
  • Raudongalvis nykštukasLithuanian
  • raudonvainikis nykštukasLithuanian
  • sarkangalvītisLatvian
  • Tsiitʼáád halchíiʼii yázhíNavajo
  • RoodkroonhaanDutch
  • Ojikomishi (Coowensh)Ojibwa
  • ogniczekPolish
  • سندوری سر تاجیWestern Panjabi
  • estrelinha-de-fogoPortuguese
  • estrelinha-de-coroa-rubiPortuguese
  • Рубиновоголовый королёкRussian
  • RubinloddegonagasNorthern Sami
  • králik rubínovohlavýSlovak
  • rubinastoglavi kraljičekSlovenian
  • Američki crvenoglavi kraljićSerbian
  • rödkronad kungsfågelSwedish
  • Gözlüklü ÇalıkuşuTurkish
  • Yakut tepeli çalı kuşuTurkish
  • золотомушка рубіновочубаUkrainian
  • 红冠戴菊Chinese
  • 紅玉冠戴菊Chinese

Catalogue of LifeWikipediaiNaturalistWikidata

Relatives of the ruby-crowned kinglet

Other species in the same family Regulidae.

LC, Least Concern
Goldcrest (Regulus regulus)

Goldcrest

Regulus regulus

Regulidae

LC, Least Concern
Flamecrest (Regulus goodfellowi)

Flamecrest

Regulus goodfellowi

Regulidae

CompareRuby-crowned kinglet vs GoldcrestRuby-crowned kinglet vs Common firecrestRuby-crowned kinglet vs Golden-crowned kingletRuby-crowned kinglet vs Madeira firecrest

Common questions

Answered only where our data holds the answer.

How big is the ruby-crowned kinglet?

An adult ruby-crowned kinglet weighs 6.19 g – 6.7 g, according to values recorded on Wikidata.

How long does the ruby-crowned kinglet live?

The ruby-crowned kinglet has a recorded lifespan of 5.6 years.

What kind of animal is the ruby-crowned kinglet?

The ruby-crowned kinglet (Corthylio calendula) belongs to the family Regulidae in the order Passeriformes.

Sources and how to cite this page

Data as of 2026-11-11. How this page is put together.

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APA

CreatureData. (2026). Ruby-crowned kinglet (Corthylio calendula). Retrieved from https://creaturedata.com/animals/ruby-crowned-kinglet

MLA

“Ruby-crowned kinglet (Corthylio calendula).” CreatureData, 2026, https://creaturedata.com/animals/ruby-crowned-kinglet.

BibTeX
@misc{ruby_crowned_kinglet_2026,
  title = {Ruby-crowned kinglet (Corthylio calendula)},
  author = {{CreatureData}},
  year = {2026},
  url = {https://creaturedata.com/animals/ruby-crowned-kinglet},
  note = {Data as of 2026-11-11}
}