Nest-site provision experiment for Long-eared Owls

To attempt to improve the breeding success of Long-eared Owls Asio otus, artificial nestsites were provided in an area where the owls were known to overwinter. The nests provided consisted of two types: old potato or apple-picker baskets made of willow, with the handles removed, and baskets of a similar shape made of wire-netting. Three willow

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