Our feeders are protected by an anti climb inverted dome and all but one of the feeders are the caged squirrel proof type. Still doesn't stop acrobatic pigeons and magpies swinging around on them trying to get at the seeds.
Add squirrels to the "annoying list" but if one appears you only have to say "squirrel" to Pops and she hurtles out the door to chase it
We did have a problem with "long tails" coming in from the mining museum next door until I reduced the numbers with the air rifle, very rarely see one now.