Poisons, profits and pests

Almost on the verge of losing its native species New Zealand is beginning to realize the environmental implications of 60 years of indiscriminate aerial application of toxic pesticides and chemicals like 1080 (sodium fluoroacetate) in its forest ecosystem. Secondary poisoning due to rat poison is posing a big threat for the birds of prey and insectivores. Though no one wanted it that way, birds are being poisoned when the insects eat the poisonous rat bait and the birds then eat the insects.