'Field' in the Bible

I know every bird of the mountains,and the creatures of the field are Mine.

May there be plenty of grain in the land;may it wave on the tops of the mountains.May its crops be like Lebanon.May people flourish in the citieslike the grass of the field.

The boar from the forest tears itand creatures of the field feed on it.

As for man, his days are like grass—he blooms like a flower of the field;