The European starling, a familiar bird in both urban and rural areas (3), may at first glance be confused with a blackbird due to its yellow beak and blackish plumage (2). The European starling however, has many differences; it is smaller, and the feathers have an iridescent bluish-purple and greenish sheen, there are also some yellowish spots on the body (4). The sexes are similar, but in spring and summer the males lose the spots on the breast, and the lower part of the bill becomes bluish towards the base (2). In winter the bill becomes dark in both sexes. Juveniles are greyish-brown, and immature birds retain a greyish brown head but have a spotted body (2). A wide range of chuckles, whistles, knocking and grating sounds are produced, along with good imitations of the songs of other birds (4).
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