Bad Birds Back

Last winter we were overrun by a growing pack of Red Winged Blackbirds.  I think at one point I counted 90 or more birds at one time.  They eventually cleared out by springtime, which was predicted.  Unfortunately things at the nearby pond may be getting rough and I am seeing RWBs again.  The really bad news is that we are farther along on the Blackbird Fibonacci series: my second count was twelve birds!  This sign of the Apocalypse has prompted me to make some feeder enhancements and replacements that exclude large birds from my north side feeders.  I do not need to encourage these louts and will cage everything if I have to.  We shall see what happens!