Where Are the Hummers?

It has been some weeks since I last saw a Ruby Throated Hummingbird here.  Now, I know they are around.  This photo taken in May shows that they worked the Coral Honeysuckle until its blooms gave out.  And I have seen fallen Trumpet Vine flowers, meaning those were pollinated---almost certainly by hummers.  But the nectar feeders...no signs.  And I have not seen a bird zipping around in weeks.  Usually I see the hummers most often in late summer and it's looking like that pattern will hold.  But this late in June and nary as sighting?  That's a surprise.  I keep watching...and watching...