The night passes slowly, in the morning Zarina goes to check on her snares but no rabbit landed, probably all of Magnolia's loud singing kept the small furry animals away, but with Missoi's help you both found a berry bush which should serves as a nice and quick breakfast before you part.
Zarina and Missoi collect enough to get by for a day for three people total, remember that foraging gets you more resources but slows you down. As for saving food, it's not really taken into account on the rules, I'd say you can save food depending on what you find and only for a few days at most.