For carving these kind of items you need green wood (fresh cut or wind felled), this time of year any tree with out leaves is a "hardwood" so your local woods is a good bet. Failing that phone a local tree surgeon and ask them nicely explaining that you are a novice carver, I had some favourable results when I started out woodturning many years ago and also from my local authority who had a tree clearance yard.
good luck and happy carving, Rob.