Dunnocks

Just out of interest, is a Dunnock in any way related to a Sparrow ?  - Its only since  feeding birds and paying more attention to them that I  have noticed the difference between the two -  I have a  Dunnock that feeds regularly under hedges and bushes and alone and its behaviour is completely different to a sparrows  - I just wondered if they were from the same family of birds as they look very similar ?

 

Tracy