Nouns

(n)eatage, forage, pasture, pasturage, grassbulky food like grass or hay for browsing or grazing horses or cattle
(n)foraging, foragethe act of searching for food and provisions

Verbs

(v)scrounge, foragecollect or look around for (food)
(v)foragewander and feed“The animals forage in the woods”