For this weeks edition of Wild Bird Wednesday I am featuring the [Western] Jackdaw (Corvus monedula) the smallest of the UK's corvids. Often very vocal but definitely a very sociable species.
Within a flock or "clattering" there is a distinct social hierarchy and it is often very noticeable that these birds fly around in pairs. These small crows are extremely faithful and once a pair have been together for over six months they almost rarely divorce even when breeding is unsuccessful otherwise they would forfeit their nest site and slip down the social scale.
Very occasionally amongst a flock you might find one leucistic bird. Leucism is a fairly unusual condition whereby the pigmentation cells in a bird fail to develop properly and this can result in unusual white patches appearing in varying degrees of density or, more rarely, completely white (albino) birds. I saw this individual happily feeding with lots of his colleagues three years ago. FAB.