Definitions
pambara: hunt for food
nuna: become plump
Translation
A bird that does not hunt for food does not plump up.
Inspiration
Birds spend much of their time on the lookout for new food sources. They will fly around or survey an area from the tops of trees constantly searching for anything that could be a potential new source of food.
Application
One should not get tired of searching for success or survival, otherwise their life will always be hard.