It is distinct from all known central European species and was probably introduced.
It is a European species that has been introduced in a number of areas worldwide.
The name is said to imitate the note of the European species.
This is a frequently observed European species with scattered records from many other parts of the world.
It is a common European species with a disjunct distribution.
It, and similar small European species, are often called chats.
As of current knowledge, it remains the only other valid European species.
It is often confused with various other European species.
Almost all of the plants and birds belonged to familiar European species.
Conversely, most European species live their adult lives on land and only visit water to breed.