Wow--that is a dramatic decrease! I wonder if Monarch Watch is a good place for you to report or to check for sightings this year.

So sorry--know how disappointing it is to have everything up and ready and no takers. Maybe next year or you never know--you may get some still. When I was in NH, I would have some come through in September--migrating though--they loved all of the goldenrods and asters in bloom.

I have not seen monarchs either here in Northern VA. I have a big habitat loaded with milkweed and can't find one egg or cat