Report number 18 from Kvismare Bird Observatory: Verksamheten vid Kvismare fågelstation 1971 Annual Report Published 1972. 46 page(s). Örebro. Documents Document vkf_1971_erik_rosenberg_till_minne_18_3.pdf Document vkf_1971_hackningsresultat_hos_brun_karrhok_18_4-9.pdf Document vkf_1971_skrattmasen_i_narke_1967_-_1971_18_10-13.pdf Document vkf_1971_intryck_fran_en_inventering_i_narkes_skogar_18_14-15.pdf Document vkf_1971_studier_av_hemortstroheten_hos_nagra_smafagelarter_18_22-23.pdf