What is Jackdaw?
{{Taxobox | name = Jackdaw | status = LC | status_system = iucn3.1 | status_ref = <ref name=iucn>BirdLife International 2009. ''Corvus monedula''. IUCN Red List of threatened species. Version 2011.1. International Union for Conservation of Nature.</ref> | image = Галка (Corvus monedula), Царицыно.jpg | image_caption=''Corvus monedula''<br> | image_width=300px | image2 = Corvus monedula calls.ogg | regnum = [[Animal]]ia | classis = [[Bird|Aves]] | ordo = [[Passerine|Passeriformes]] | familia = [[Corvidae]] | genus = ''[[Crow|Corvus]]'' | binomial = ''Corvus monedula'' | binomial_authority = ([[Carolus Linnaeus|Linnaeus]], 1758) | range_map = Corvus monedula distribution de.svg | range_map_width =300px | range_map_caption = Jackdaw range in green,<br> summer-only range in pale green<br>blue areas are winter visitor only }} [[File:Coloeus monedula MHNT.ZOO.2010.11.172.3.jpg|thumb|Eggs of the ''Coloeus monedula (western jackdaw)'' ]] The '''Jackdaw''' is a large [[bird]], a member of the [[crow]] family [[Corvidae]]. It is black, with a grey back of the head. The jackdaw is common over the whole of [[Europe]] and much of [[Asia]]. It is mostly a resident, although northern and eastern populations [[migration|migrate]] south in the winter. It is about {{convert|34|–|39|cm|in}} in length, The jackdaw is [[wikt:gregarious|gregarious]] and vocal, living in small groups with a complex social structure. It is found in farmland, open woodland, on coastal cliffs, and in urban settings. == Behaviour == Jackdaws are [[omnivore|omnivorous]] and opportunistic. They eat a wide variety of plant material and [[invertebrate]]s, as well as [[food waste]] from urban areas. Jackdaws are [[Monogamy|monogamous]] and build simple nests of sticks in cavities in trees, cliffs, or buildings. About five pale blue or blue-green eggs with brown speckles are laid and incubated by the female. The young fledge in four to five weeks. In his book ''King Solomon's Ring'', [[Konrad Lorenz]] described and analysed the complex social interactions