ocr: BIRD BOX Many small songbirds such as blue tits nest in cavities in trees. These birds look for somewhere with a arrow entrance, so that their vulnerable young can develop our of the reach of predators such as cars and crows.A - nestbox provides them with an artificial version of their natural home. Ideally,it shouldhave a hinged roof, SO that itC can be cleaned out, and the space inside should allow the air to circulate. SEE ALSO
