Every now and then I got a glimpse of this bird which I'm pretty sure is not native to Northern Germany where I live. There are at least three of these birds around but I usually only see something quick and green somewhere in the trees. I finally managed to get some decent pictures so I'm hoping someone can tell me what kind of bird this is. I'm curious what biological niche this bird is likely to fill and which native species it might compete with.
I think I also managed to record its call, although it was dark and my ornithology skills are next to zero so it might just be a native species that sounds foreign to my untrained ear.