Don't use a trowel, murderer. Use something with tines and dig the hole deeper and wider. Don't feel guilty, robins don't.

Don't feel bad, you might actually be increasing their numbers.

Here is a link that might be useful: wiki worm

Turn yourself in to the worm king now and he may be mercifull.

Just kidding! I think I read somewhere that when you cut a worm in half both halves become new worms. After it rains, I watch the robbins eat their weight worth's of worms, somehow there are always worms around though.

Yup, I remember from 7th grade biology that the phylum annelida (earthworms) regenerate the rest of their body if they are cut in half. So really, you're not murdering them, you're helping them with their asexual reproduction. Who knew that 7th grade biology would ever be useful? (I'm still scarred from dissecting a starfish-ewww, gross.)

I spent the better part of last weekend planting cherry trees and relocating worms that surfaced to the veggie patch. :) I felt so bad for them- all sleepy and warm in their dark underground lairs and then being unceremoniously disturbed by me digging a hole. So, I kept making trips from one side of the yard to the other to put them in a more comfortable place... among my tomatoes and peppers! We're all living in harmony now. Care to join in a chorus of kumbaya?

As an act of repentance, leave offerings of grass clippings to the survivors, and make the garden a Robin Free Zone.

Be very glad you have so many worms, means you have very good soil. Be proud of how well you take care of your soil