One of the birds that, I personally have seen, dig worms out the ground is the American Robin. When we lived in Indiana, there were many Robin available to watch. Down here in central Florida, we very seldom see any. Mostly in the winter, a few Robins migrate through here. They do not stay for the winter, but keep heading further down the state.
Many other birds like worms also, including Bluebirds.
Yet, it seems that Garfield met a very interesting Bluebird that has a problem feeding her little ones:
” A merry heart does good, like medicine, But a broken spirit dries the bones.” Proverbs 17:22