This list includes animals and plants that were brought to a non-typical habitat for them and began to multiply there quickly, displacing the local flora or fauna, notes EuroPulse.

Necklace parrots appeared in the Netherlands in the 1970s, and now there are more than 10 thousand.

These lively birds compete with the native feathered population of the country for places for nests - they settle in hollows of trees, such as owls. And the townspeople complain of not very melodic and loud cries of "invaders".

While necklace parrots are not recognized as an invasive species at the EU level, experts in the Netherlands are already inventing ways to reduce their numbers. While the two tactics are leading - not to give them the opportunity to nest or chemically sterilize (this does not harm the animal, but it will not have offspring anymore).