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Noxious: Montana’s Battle With Spotted Knapweed, and What Birders Can Do

10,000 Birds

(Indeed, some reports take the term ‘noxious’ quite literally, stating that knapweeds exude natural herbicides to discourage competition and can cause irritation to the skin of humans trying to pull them; one rumor gives them the power to induce ‘hand cancer’ if not handled with gloves.)

Montana 165
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Acclimatisation Societies of New Zealand

10,000 Birds

A housecat in Buenos Aires got its start in Africa, a sheep in Australia to the Middle East, a chicken in Ireland can trace its origin to the jungles of Asia. Secondly, New Zealand had already experienced on wave of extinction due to the introduction or rats and human hunting.

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Greater Rheas: Germany’s new Big Bird

10,000 Birds

It is not unusual to drive by a farm building and see a bunch of Greater Rheas on the farm’s fenced-in pasture next to sheep or goats. This is where the fact that German birders are humans comes into play (and they sure aren’t the only ones ). Clearly, the birds had to be removed, the sooner the better.

Germany 260