Copy Reference Birds Trained to Fight Insects
Year:1982 Issue:5
Column: Across the Land
Author: ZHANG SHEN
Release Date:1982-05-01
Page: 69
Full Text:
MANY birds catch insects as their food. Can some of them be trained as tree ''doctors"? A county on the coast of the Yellow Sea has tried it.In 1977 the forestry research personnel in Rizhao county,...
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