In order to keep your Orioles happy, feeders should be thoroughly cleaned with hot water each time the nectar is changed or re-filled. Once a month, a diluted bleach solution should be used to soak the feeder for an hour. Do not clean your feeders with soap or place in the dishwasher.
When first putting out a feeder, it may be best to put it away from your house, in an area visible from above, but less distracting. Ideally near tress or vegetation that the Oriole may frequent may be ideal. Feeders near houses are less likely to be seen. Additionally, movement from inside the house may scare the Oriole away. Once you have some Orioles visiting your feeder, you may wish to move closer to your house for better viewing.
Other Nectar Sources for Orioles include the following flowers: tubular flowers, lilies, aloes, agaves, and hibiscus. Besides nectar Orioles will eat many kinds of insects, including a large variety of caterpillars. Orioles like many kinds of fruit including but not limited to blackberries, mulberries, elderberries and service berries.
Orioles are also common visitors to bird feeding stations that have orange halves, suet, peanut butter mixtures, grapes, watermelon pulp or rind as well as other kinds of fruits.