They may look cute...!

ARE GEESE SELF-SUFFICIENT?
If you have a patch of grass – something like an overgrown orchard – and plenty of kitchen scraps, then geese can manage for most of the year without extra feeding. As William Cobbett says in his now classic self-sufficiency book Cottage Economy (published 1821) …”Geese are amongst the hardiest animals in the world… a goose will lay a hundred eggs a year… we give such things that are going to seed…lettuce… cabbages…they thrive exceedingly upon this food.”