The (Common/European) Starling has a beautiful iridescent purple and green gloss and white/pale spots at the tips of its feathers.
Its is brighter/spottier in summer and duller brown in winter. The beak is yellow in the breeding season and brown/black late in the year.
Housework: when clearing the eggshells the Starling is clever enough to take them far away from the nest to deter predators.
They are opportunist feeders eating anything they can.