Ruby-crowned Kinglet
A species of Kinglets Scientific name : Corthylio calendula Genus : Kinglets
Ruby-crowned Kinglet, A species of Kinglets
Botanical name: Corthylio calendula
Genus: Kinglets
Content
Description People often ask General Info
Photo By Cephas , used under CC-BY-SA-4.0 /Cropped and compressed from original 
Description
The ruby-crowned Kinglet is a tiny kinglet bird that only weighs up to 10 g. Its song is very complex and quite loud for an extremely small bird. This kinglet is easily recognizable not only by its size but also by its constant wing flicking, especially while foraging for food. The distinctive red patch on its head is often concealed and appears when the bird is excited.
Size
9 - 11 cm
Colors
Green
Yellow
Life Expectancy
5.6 years
Nest Placement
Tree
Clutch Size
5 - 12 eggs
Incubation Period
1 brood
Number of Broods
12 - 14 days
Nestling Period
16 - 18 days
Feeding Habits
Ruby-crowned Kinglet's diet consists of spiders, pseudoscorpions, various insects like aphids, wasps, ants, and bark beetles, as well as a minor portion of seeds, grains, nuts, fruit, and plant sap. They forage mainly in high trees, employing hover-gleaning to extract prey from foliage.
Habitat
Ruby-crowned Kinglet predominantly inhabits coniferous forests with a preference for spruce-fir woodlands in northern America, thriving at higher altitudes. During breeding, they seek out dense, mature trees to suspend their nests. The species adapts to a variety of wooded environments, including mixed forests and floodplain woodlands of oak, pine, spruce, or aspen. Non-breeding seasons see ruby-crowned Kinglet in widespread woodlands and thickets across the continent where adequate shelter and foraging opportunities exist.
Nest Behavior
Female ruby-crowned Kinglet build nests within 5 days, making frequent material collection trips. Egg-laying and brood care details remain elusive, but the nest stretches as young grow, implying adaptive parental care and maintenance.
Nest Characteristics
The nest of ruby-crowned Kinglet is built high in trees, near trunks or on branchlets, concealed by foliage. It's globe-shaped, roughly 4 inches wide, 5-6 inches deep, with an inner dimension of 3 inches across by 2 inches deep. Constructed from grasses, mosses, spiderwebs, cocoon silk, fine plant material, and fur, it is elastic and requires maintenance.
Dite type
Insectivorous
People often ask
General Info
Feeding Habits
Bird food type
Hulled Sunflower Seeds
Suet
Peanut Hearts
Mealworms
Bird Feeder Type
Suet Cage
Platform
Sounds
Call
Recording location: United States
Call
Recording location: United States
Song
Recording location: United States
Song
Recording location: United States
Song
Recording location: United States
Behavior
Ruby-crowned Kinglet lead an active lifestyle, often characterized by their lively acrobatic foraging. They incessantly flit through shrubs and trees in search of insects and arthropods, their primary food source, perpetually flicking their wings—a distinctive behavior among their kind. During breeding season, ruby-crowned Kinglet energetically defend their territories through prolonged, melodic vocalizations, a safer alternative to physical confrontations. These breeding pairs display a short-term monogamous bond, remaining together just long enough to rear their offspring.
Distribution Area
Their breeding habitat is coniferous forests across Canada, Alaska, northern New England and the western United States. They nest in a well-concealed hanging cup suspended from a conifer branch and may lay as many as twelve eggs in a clutch. The recent counting indicates that the ruby-crowned kinglet population is on the rise. This is mainly due to discovery of less disturbed territory farther north. This allows more successful breeding. These birds migrate to the southern United States and Mexico. Some birds are permanent residents in the west. 
Scientific Classification
Phylum
Chordates Class
Birds Order
Perching birds Family
Goldcrests and kinglets Genus
Kinglets Species
Ruby-crowned Kinglet 
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