These are the easiest migrants to spot, watch, savor. You don't need binoculars or a quick eye. Unlike warblers, these birds are chunky and not fidgety. They'll let you have a good long look. And blessedly, unlike warblers, they also eat seeds, so they'll come to your feeders and sit a spell. Look at those large cardinal-like seed crunching bills
I've had three and four rose-breasted grosbeaks jousting for position at my feeder for several days. They'll be here until it's time to move on to the Cumberlands or higher elevations of the Smokies.