Grubbing

Grubbing or clearing denotes the removal of trees, shrubs, stumps, and rubbish from a site, often from the site on which a transportation or utility corridor, e. g. a road or power line; an edifice, e. g. a home or office; or a garden is to be constructed. Grubbing is performed following clearance of trees to their stumps and preceding construction.
In animal behaviour grubbing is a feeding technique, referring to the digging and uprooting of roots and rhizomes of plants. It is employed by geese, especially greater and lesser snow geese and Canada geese, as well as swine.