The Common Starling, Sturnus vulgaris, is a medium-sized passerine bird characterized by its glossy black plumage with a metallic sheen. Throughout the year, the plumage is speckled with white, though less so during the breeding season. Adults measure approximately 20 cm in length, with pink legs and a seasonally changing bill color—black in winter and yellow in summer. Juveniles display browner plumage compared to adults.
To identify the Common Starling, look for its iridescent black feathers, which may appear purple or green when reflecting light. The bird's bill is black in the winter and transitions to yellow in the summer, aiding in identification. The starling's flight is strong and direct, with pointed wings that are distinctive in the air. On the ground, its waddling gait is notable.
Common Starlings are highly adaptable, favoring urban and suburban areas where they find ample nesting and roosting opportunities. They also inhabit grasslands, such as farmlands and pastures, where short grass makes foraging for invertebrates easier.
Native to temperate Europe and western Asia, the Common Starling has been introduced to Australia, New Zealand, North America, and other regions. Its range extends from Europe to northern Africa and across the Palearctic to western Mongolia.
The Common Starling is a gregarious bird, especially in autumn and winter, forming large flocks known as murmurations. These flocks are thought to be a defense against predators. On the ground, starlings forage in groups, often following grazing animals to feed on disturbed invertebrates.
The Common Starling's song is a varied mix of melodic and mechanical sounds, including mimicked noises from other bird species and the environment. Males sing to attract mates and defend their territory. Calls include a harsh alarm scream and a variety of social chatters.
Breeding occurs in the spring and summer, with the female laying four to five glossy, pale blue eggs in a nest built within a natural or artificial cavity. Both parents share incubation duties, and the young fledge after about three weeks.
The Spotless Starling is similar in appearance but can be distinguished by its lack of iridescent spots in adult breeding plumage and longer throat feathers.
Omnivorous, the Common Starling's diet includes a wide range of invertebrates, seeds, and fruit. They employ various foraging techniques, such as probing the ground and catching flying insects.
Despite declines in some European populations, the Common Starling's global population is not considered to be declining significantly. It is classified as Least Concern by the International Union for Conservation of Nature (IUCN).