If you play Sicilian as black, then English, if you play Dutch as black then Bird.
this makes no sense. The Sicilian is an opening against e4, the Dutch is an opening against d4.
they can also be played as white against e5/d5, if you play the english and get e5, you have a sicillian but for white. if you play the bird and get d5, you have a dutch but for white.
Bird is more aggressive, and better for beginners