Ruby-crowned Kinglet

Corthylio calendula

Least Concern · IUCN Red List

LCLeast ConcernSeedsForestCup nestTiny · 8 g

What the Ruby-crowned Kinglet sounds like

Sonogram of the Ruby-crowned Kinglet: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Jonathon Jongsma · Song · Miesville Ravine Park Reserve, Goodhue County, Minnesota, United States · CC BY-SA 4.0 · via xeno-canto
Sonogram of the Ruby-crowned Kinglet: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Jonathon Jongsma · Call · Miesville Ravine Park Reserve, Goodhue County, Minnesota, United States · CC BY-SA 4.0 · via xeno-canto
Sonogram of the Ruby-crowned Kinglet: time runs left to right, pitch bottom to top, and the brighter the mark the louder the sound.
Recorded by Jonathon Jongsma · Song · Powderhorn Park, Minneapolis, Hennepin, Minnesota, United States · CC BY-SA 3.0 · via xeno-canto

ID tip

The ruby-crowned kinglet is a very small bird, being 9 to 11 cm (3.5 to 4.3 in) long, having a wingspan of 16 to 18 cm (6.3 to 7.1 in), and weighing 5 to 10 g (0.2 to 0.4 oz). It has gray-green upperparts and olive-buff underparts. It has two white wingbars and a broken white eye ring. The wingbar on the greater secondary coverts (closer to the wing-tip) is wider, and is next to a dark band. The kinglet has a relatively plain face and head, although the male has a scarlet-red crown patch, which is usually concealed by the surrounding feathers. Voice: The ruby-crowned kinglet's vocalizations are remarkably loud and complex for its size. Its song can be divided into three main parts: a series of high pitched notes (zee-zee-zee or tee-tee-tee), two to five low trills (turr or tu), and a repeated three note "galloping" phrase (tee-da-leet, tee-da-leet).

Text from Wikipedia, licensed CC BY-SA 4.0.

When to see the Ruby-crowned Kinglet

One bar for each month. Filled bars are the 9 months with records; pale bars are months with none. The wide bar is April, the month with the most records.

Where to see the Ruby-crowned Kinglet

Regular rangeRare visitor

The map shades 9 countries with regular records, and 2 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.

Recorded as a rare visitor in Iceland, Cayman Islands.

About the Ruby-crowned Kinglet

The ruby-crowned kinglet 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.

Text adapted from Wikipedia, licensed CC BY-SA 4.0.

Easily confused with

Side by side: Golden-crowned Kinglet vs Ruby-crowned Kinglet · Goldcrest vs Ruby-crowned Kinglet · Common Firecrest vs Ruby-crowned Kinglet

Learn the Ruby-crowned Kinglet in the BeakBrain App

Photo and call practice. Coming soon to iPhone and Android.

Play today's Daily Bird

Every photo and recording on this page is credited to its author under the licence shown. Spotted a problem with this page, or have a better photo? Contribute.