Those questions will have different answers for different species of wood. It would help tremendously to know the general area in which you reside. The more info you provide, the easier it is to tell you what to look for and make suggestions on where to look. I travel all over the lower 48 of the US and have a fairly good working knowledge of local bow woods in most regions. I won't know every tree in every region, but can generally point you towards a few species that should be available. One important thing to remember is to get permission to cut wood. I joke about a limb saw and the cover of darkness to gather bow wood, but truth be told its not hard to find out who owns the land and I've never been turned down to harvest a few limbs once the land owner knows what I'm about. Josh