Herons and Humans
In many countries herons have decreased because they are shot by fishermen and fish farmers. In Britain they are fully protected by law and they are increasing, helped by recent mild winters. The population fluctuates between 4,000 and 4,500 pairs, but it falls after severe winters; the birds may starve when rivers and lakes freeze over.
Herons sometimes visit garden ponds to steal goldfish. They may be deterred from doing this by putting a net over the pond or possibly by placing a model heron at the edge - this is supposed to fool a heron into thinking that the pond already has a resident fisherman!Read More: Credits