Yes they are a Bully Type Gang Bird.
https://www.birdguides.com/news/gove...parakeet-cull/
[Government considering Ring-necked Parakeet cull
Ring-necked Parakeets may be culled by
the government, with a recent revelation
in The Telegraph stating that Defra officials
are in discussions about destroying satellite
populations of the species.
During the past few decades the parakeet
has spread from London to become
an established Category C breeding species
in much of the South-East with an
estimated population of some 8,600 – though
perhaps as many as 25,000 – pairs.
In recent years the species has penetrated
far corners of Britain; BirdGuides reports show
the parakeets have reached as far north as
Aberdeenshire and west as Devon since 2017.]
They are Tough Little Devils