Eurasian Jay (Garrulus glandarius)

The Eurasian Jay (Garrulus glandarius) Its usual call is the alarm call which is a harsh, rasping screech and is used upon sighting various predatory animals, but the Jay is well known for its mimicry, often sounding so like a different species that it is virtually impossible to distinguish its true identity unless the Jay is seen. It will even imitate the sound of the bird it is attacking, such as a Tawny Owl, which it does mercilessly if attacking during the day. However, the Jay is a potential prey item for owls at night and other birds of prey such as Goshawks and Peregrinesduring the day.Feeding in both trees and on the ground, it takes a wide range of invertebrates including many pest insects, acorns (oak seeds, which it buries for use during winter), beech mast and other seeds, fruits such as blackberries and rowan berries, young birds and eggs and small rodents.

(sourceWikipedia)