Looks like an albino Grackle. They flock up in the Fall and fly south - but not too far, maybe Virginia. The flocks sometimes include Red-Winged Blackbirds and Cowbirds. They don't stay long at the feeder. Orioles? Still common here in SW CT and very vocal in May when they return. A few Orchard Orioles also. Put out some orange slices and some grape jelly and if any are around, they will come to eat.