---
title: "Ruby-crowned Kinglet"
description: "Corthylio calendula — Birds. The ruby-crowned kinglet (Corthylio calendula) is a very small passerine bird found throughout North America."
canonical: https://animalchecklist.com/animal/ruby-crowned-kinglet
last_updated: 2026-09-20
---

# Ruby-crowned Kinglet

> Corthylio calendula — Birds. The ruby-crowned kinglet (Corthylio calendula) is a very small passerine bird found throughout North America.

- Scientific name: *Corthylio calendula*
- Category: `birds` (Birds)
- Habitats: `forest` (Forest)
- iNaturalist observations: 94480
- Wikidata: [Q117266977](https://www.wikidata.org/wiki/Q117266977)
- iNaturalist taxon: [1289388](https://www.inaturalist.org/taxa/1289388)

## Names

- en: Ruby-crowned Kinglet
- de: Rubingoldhähnchen
- es: Reyezuelo Matraquita
- fr: Roitelet à couronne rubis
- pl: Ogniczek

## Countries with the most observations

US (67511), CA (14356), MX (5607), BM (7), PT (3)

## Summary

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…

Text: Wikipedia (en), CC BY-SA 4.0 — https://en.wikipedia.org/wiki/Ruby-crowned_kinglet

## Photo

![Ruby-crowned Kinglet](https://animalchecklist.com/img/animals/ruby-crowned-kinglet/medium.jpg)

Photo: John Dziak · CC0 · inaturalist — https://www.inaturalist.org/observations/115607231

## Machine access

`GET https://animalchecklist.com/api/v1/animals/ruby-crowned-kinglet?lang=en` — see [openapi.json](https://animalchecklist.com/openapi.json).