The Argentinian parrot (Myiopsitta monachus) became fashionable as a pet in the 60’s, being cheaper than parrots and cockatoos.
Not considered technically as “vermin”, although their overcrowding can cause serious problems of coexistence.
They have a gregarious behavior. They feed on seeds originally, but have adapted bread well to their diet. They especially have ravaged crops in Baix Llobregat (Barcelona.)
When some escaped or were released by their owners because they were very noisy animals, they began the colonization of towns successfully. We talk of an annual growth of 8%.
Lack of predators in our towns and more than enough food, have been factors contributing to their growth.
We could talk about parrots in Europe as a “typical Spanish” phenomenon, and the wild population concentrates in urban centers such as Barcelona and its metropolitan area (around 2.500 specimens), Lleida, Malaga, Valencia, the Balearic Islands and,increasingly significant, in Madrid.
They sit on tops of trees such as palms, pines, cypresses and banana trees. Their nests are authentic forts, with weights that are usually around 100 kg. Given the fragility of some trees where they are based, they turn out to be dangerous.