The Eurasian Nuthatch (Sitta europaea) is a small passerine. It is a resident bird of deciduous woods and parkland, with some old trees for nesting. It feeds on insects, seeds and nuts. Its old name “nut-hack” derives from its habit of wedging a nut in a crevice in a tree, and then hacking at it with its strong bill. It has the ability, like other nuthatches, to climb down trees, unlike species such as woodpeckers which can only go upwards. It will come to bird feeding tables, and is then very aggressive, driving other species away.