Cedar is a nice soft wood to carve.....
Ya it's better to use live or green wood it;s softer,but not at the moment,I hav'ent tryed but Fish has and the sap is on the move so dont go chopping branches off the tree till the leves are out or droped.A nice wood is appal but let that dry for ayear or so,Lime is also a good one,you'r need a Hook or spoon knife there about £15 and then a bit of practise and you'll be there,I'v only been doing it a cuple of years