The effect of sewage ponds on birds

[Grev Reidy <>]

Some years ago,at Darwin sewage ponds (where there were Garganey teal
and Yellow wagtails, and many other water birds), the water was bright
green,  perhaps from green algae, and there were numbers of dead or sick
birds. We assumed that the water was the cause.
                                  Grev Reidy

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