Blue tit (Parus caerulens) - one of the most beautiful tit occurring in forests and near human settlements. Its food is insects, their larvae and small arachnids - this is how it helps to fight pests. In winter, it eagerly eats greasy seeds and unsalted lard, and sometimes apples. Its characteristic blue cap surrounded by a white border on the head often looks like nesting boxes, hollows or cracks in tree trunks, where it nests most willingly. This colorful tit, despite its small body structure, is an extremely aggressive bird, especially towards other tit. It is worth observing her behavior at the feeders because there will be an opportunity for it soon.