I was in China two years back had visited the cherry plantation of the China
Academy of Agricultural Sciences. There I saw a simple but very effective
technique to control birds. They were putting nylon fibre nets (not like
the ones used by fishermen) put like volley ball nets around the plantation.
The height of the net was adjusted in such a manner that it commensurated
with the normal flying height of the birds. So it was about a metre wide,
fixed like a volley ball play ground nuts. The birds used to get trapped in
this net and could not come out. They ultimately died in a day or two. The
sight of trapped birds and their distress calls probably frightened other
birds and they keep away. It was quite inexpensive and VERY effective.
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