closeup on a female grey-backed mining bee, andrena vaga sitting on yellow pollen of goat willow, salix caprea

arthropoda andrena vaga andrenidae bee hymenoptera insect kanaalbermen nature adult animal backed biology close up closeup detail entomology fauna fluffy grey greybacked hairy invertebrate macro mining one outdoor pollination single solitary white wild wildlife wing female sitting yellow pollen goat willow salix caprea