Liz,

I live in the northeast and we don't have a "hare" problem like you
may, but we do have rabbits.
It is most likely that your bluebells are being munched on by the fast
multiplying hares.
However, if you want to try and determine as to whether you have slugs
or earwigs, here is how to tell: slugs are nocturnal so go out after
dark with a flashlight and look for them. also, slugs eat from the
inside out. so if your foliage is missing the tips, it is probably not
due to slugs. if you want to control slugs anyway, the best and safest
way is with a slug trap like this one:
http://www.bugspray.com/catalog/products/page919.html
It is less likely that earwigs are your problem because growing plants
are not their main diet. earwigs usually dine on other types of
insects, mosses, algae and lichens which is why you'll often see them
in heavily wooded areas. controlling earwigs is possible with
pesticides such as diazinon or sevin but usually not recommended until
you get them in your house. (they are pretty creepy little pests.)