These birds belong to corvid species and are beautiful as their feathers reflect the UV light.
When they communicate or are nervous they often raise their crest.
They are very clever and can imitate human voice and more.
They make their nest to breed high in a tree, up to 10m in coniferous but preferably with a thick bush at the basis of the tree.
their nest is made outside with small sticks but hey cover the inside with moss and grass to be more comfortable.
In autumn, they eat plants and berries but also acorns that they keep in reserve for the winter. In spring & summer, their food is composed of insects, beetles. but unfortunately they happen also to eat small rodents, lizards and even birds or their eggs.