>Can you describe the 'banana feeder' ? I'd like to try putting one out....
The simplest feeder is just a compost pile in a shady spot (it's
important to keep in mind that butterflies (and moths!) that are
attracted to fruit tend to be tree-feeding shade lovers). Add fruit
and anything else that ferments!
A real simple feeder, like the ones I used in TX, just consists of a
piece of aluminum screen sandwiched between 2 wooden "frames" and
hung with wire from screw-in-type eyes at the corners. You can make
them any size you need but as you get larger the screen will sag in
the middle and will need some cross members. The screens are great
because butterflies (and moths at night!) can get at the fruit from
both the upper and lower sides...some species seem to prefer to hang
from the bottom of the feeder. But bananas and other fruit dry out
much faster when they're surrounded by air.
My more "civilized" feeder here (so the wife doesn't complain that
it's "unsightly") is a hanging cedar feeder/bird bath that I found at
WalMart. It has a plastic dish (basically an 8" plant saucer) inside
a hexagonal cedar frame with a perforated bottom. Rain water has to
be drained from the dish after every rain (unless you also hang the
feeder under a clear acrylic squirrel guard -- these were common in
the States but I've not found one large enough to do the trick here)
but the dish keeps the banana from drying out as fast. I just add
another layer of sliced banana every 5 or so days...a few layers and
the butterflies are much easier to see/photo. I empty the dish and
clean it out about once a month.
Here, with one feeder, I'm going through about 4 large bananas a
week. I just slice off the stem, slice them lengthwise and lay the
halves fruit side up in the feeder. In TX, where I had 4 large screen
feeders, I was going through 2 large bags (the "unsellable" bananas
that end up bagged at the supermarket) of bananas a week. Even
discounted, it could get expensive!