for est ation ▁of ▁the ▁he ath land ▁in ▁the ▁ 1 9 th ▁century . ▁There ▁are ▁also ▁small ▁stands ▁of ▁older ▁decid uous ▁trees : ▁o aks ▁and ▁be ech . ▁The ▁high ▁proportion ▁of ▁woods ▁makes ▁the ▁Lü ne burg ▁He ath ▁Nature ▁Reserve ▁one ▁of ▁the ▁largest ▁areas ▁of ▁protected ▁wood land ▁in ▁Germany . ▁In ▁addition ▁there ▁are ▁streams ▁and ▁small ▁valle ys , ▁mar sh es , ▁me adows , ▁past ures , ▁fields ▁and ▁open ▁s ands . ▁ ▁The ▁region ▁is ▁extremely ▁important ▁for ▁the ▁protection ▁of ▁bi ot op es ▁and ▁plant ▁and ▁animal ▁species . ▁It ▁is ▁the ▁only ▁freely ▁accessible ▁part ▁of ▁Lower ▁Sax ony ▁in ▁which ▁the ▁Black ▁Gr ouse ▁may ▁be ▁found . ▁The ▁results ▁of ▁the ▁gr ouse ▁cens uses ▁have ▁been ▁able ▁to ▁show ▁an ▁encourag ing ▁improvement ▁in ▁recent ▁years . ▁ ▁Population ▁of ▁Black ▁Gr ouse ▁ ▁Places ▁of ▁interest ▁in ▁the ▁nature ▁reserve ▁ ▁W ils ede ▁has ▁one ▁of ▁the ▁oldest ▁open ▁air ▁museum s ▁in ▁Germany : ▁the ▁He ath ▁Museum ▁( He ide museum ) ▁opened ▁in ▁ 1 9 0 7 ▁in ▁a ▁historic ▁building ▁that ▁had ▁been ▁transferred ▁there ▁and ▁known ▁as ▁Dat ▁o le ▁Hu us ▁(" the ▁o le ▁house "). ▁Inside ▁the ▁house ▁you ▁can ▁see ▁how ▁the ▁he ath ▁folk , ▁the ▁He id jer , ▁lived ▁and ▁worked ▁around ▁ 1 9 0 0 . ▁Other ▁places ▁of ▁interest ▁include ▁the ▁Em hof ▁in ▁W