Britain's naturalised parrot now officially a pest, The Independent

SHOP — Foster Parrots — The New England Exotic Wildlife Sanctuary

Parrot - Wikipedia

Rose-ringed parakeet - Wikipedia

Bbc wildlife spring by StStilinski - Issuu

Britain's naturalised parrot now officially a pest, The Independent

Feral parakeets in Great Britain - Wikipedia

Much debated mystery of bright green parakeets' arrival in UK solved, scientists believe, The Independent

Nature Studies: London's beautiful parakeets have a new enemy to deal with, The Independent

Rose-ringed parakeet - Wikipedia

Invasive non-native species (UK) – Ring-necked parakeet - Inside Ecology

Madrid's War on Invasive Parakeets May Be Futile - Bloomberg