I decided to experiment and create a new butterfly feeder using a hummingbird feeder without the top. As you can see from the pictures, the Monarchs like the arrangement.
I tried two different mixes – one from Monarch Watch and another which was just Gatorade. I later added bee pollen to the Gatorade, but it doesn’t seem to be absolutely necessary.
The trick is to hang the feeder up high. I also put it over some milkweed that was in a pot to further encourage them to feed in this location. I noticed that one smaller feeder with the same mixture was ignored when it was placed down low on a table.