TY JOUR TI The morpho-ethological characteristics of honey bees Apis mellifera L. of Perm region KW honeybee KW the European dark bees KW worker bees KW virgin queens KW drones KW morphometry KW reproduction of queens KW flight activity JO Agrarian Bulletin of the AU Simankov, M.K. AU Kolbina, L.M. PY 2021 IS 205 PB Ural State Agrarian University