JJ ,
http://purplemartinplace.com/trap-plans-p-429.html-----------------------------------------------------------
I know you asked about a pellet proof feeder but if the starlings are really ruining your fruit a simple trap will work from daylight to dark 24/7. There are better pictures to be had -with actual measurements of the opening and such with a little googling. Nothing on youtube that I could find .
One of the traps full of starlings -then inject a small gamey dog/cat/ferret into the cage -would be fun to watch -maybe invite your buds over -a couple of beers watching the cage match .
Just saying ..