a black cow resting
a green grassy field
black cow in a field
black cow lying down 
a cow laying down on the ground
a black cow laying on the ground
a black cow laying on grass
a cow laying on the grass
a black cow laying in a field
a cow laying in a green field
a field of cows
a field of black cows
a field of cows standing
a field of cows standing and laying
black cows lie in the grass, on a grassy hill while other cattle are laying down