The Birds freaked me out too.
But there was one movie, I can't recall the name of it, but it was about these giant ants and they were attacking people. So lame and cheesy now, but not at the time!
Also who remember's the Land of the Lost tv show? OMG, those stupid Sleestaks with their horrible breathing sound scared the crap outta me!!
But now as an adult I love being scared and it's hard to find a real good scary movie. Most are just gruesome and bloody and that is not the same thing.
ETA: The ant movie was called Empire of the Ants and starred Joan Collins. It came out in 1977 which means I was 6 when it was released. What the heck were my parents thinking letting a 6 year old watch that??