Way more early pollen than nectar. That pollen will spur brood rearing and every year people lose colonies because the rapidly expanding bees starve to death. I murdered one by my inattention last spring. Complacency costs.
This cannot be stressed enough. It doesn't take much feed to get them thru winter. Once brood rearing starts they will starve to death in a hurry.
By the same token if their fed too much they'll backfill the brood nest and probably swarm. Moderation in everything.