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North American ducks try to breed in Yorkshire
(www.bbc.co.uk)
Note: Our temporary logo is from The Wildlife Trusts. We are not officially associated with them.
Our current banner is a shot of Walberswick marshes, Suffolk by GreyShuck.
The push seems to be to get native species back to their previous numbers - wouldn't an American duck be considered an invasive species? Or are they only called invasive when they're upsetting the balance?
There's never balance in nature. Something's always on the way out while something else is always on the way in. When this change is slow, people confuse it for balance.
Surely there's a difference between, say, black swans being introduced to Britain and rabbits being introduced to Australia? Black swans aren't disrupting the British ecosystem (that I know) whereas rabbits down under are a serious pest.
They're only considered to be invasive when they have a negative impact on the local ecosystem.