Not only this year.
Here’s an article from 2018 that discusses this and some of the reasons behind it:
Here’s an article from this year about the current situation:
In short, while climate change definitely is making animals change their ranges, in these cases it appears to be some combination of breeding booms, storms/weather, and juveniles potentially getting confused.
An example of the latter case are the flamingos that occasionally wind up deep in Siberia, something that’s been documented since at least 1907.