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Show Sweden Provides Bird Houses Bird houses by the thousands have been set out by the Swedish government govern-ment forestry service to get the birds' aid in fight against insects. It has been found that when dead trees are systematically cleaned out there are not enough hollow trunks left for the birds to use as nests, and destructive insects have consequently been gaining gain-ing in force. So far about 7,000 government gov-ernment bird houses have been put up anil lie private owners of forestry land are asked to follow the example. |