Northern Long-eared Owl, Asio otus, is a species of nocturnal bird of prey found in cropland and woodland and forest ecosystems. It is a widespread breeder across much of Europe. This species breeds in dense vegetation adjacent to open areas such as grassland or shrubland, including open forest, nesting and roosting in forest. In mainland Europe, breeding occurs in edge woodland and scrub and in Britain it favours shelterbelts, small groves and thickets surrounded by moorland, grassland, marshes or farmland (European Red List 2015).

Asio otus has a breeding population size of 114000-269000 pairs and a breeding range size of 3030000 square kilometres in the EU27. The breeding population trend in the EU27 is Unknown in the short term and Unknown in the long term.

The EU population status for Asio otus is Unknown, as the data reported were not sufficient to assess the population status of the species.