How to attract orioles: Put the feeder out when they first return from their migration (for us, that's late April to early May). When they return they are on the lookout for places to feed. If you wait too long, they will have found their sources elsewhere. The type of feeder we use has a place for half an orange and grape jelly. The orioles are interested in the oranges early in the season; later they won't eat the oranges. It has something to do with their reproductive cycles. They like grape jelly all season long.
Linking to Fertilizer Friday