There are many dialects in Friesland (NL) and here you can see a comparison of the two most spoken dialects. Wâldfrysk (Woodfrisian) and Klaaifrysk (Clayfrisian). Not only are there a difference in vocabulary and pronunciations, there are also differences in ways of thinking and their outlook on life. The Wâldfrisians are folk who don’t like to be in the spotlight, sound harsher and tend to be more forward. This part of Friesland, de Wâldhoeke (Woodcorner), is also known as the most roughest region of Friesland. However, there is also the Clay region. This region has more singers and writers. Clayfrisians don’t mind to be more in the spotlight. They’re also less bold and rough.
Just think of The Lord of the Rings (or The Hobbit) which has elves and wood elves.
Note; The Wâldfrisian dialect has more a connection to English (and German) and Klaaifrisian more a connection to Dutch.