Yes. They like any kind of hay, really.
grass hay weeds plants flowers cress
Fresh hay smells much like grass.
they like long dead brown colour grass like hay
Oxen eat the same things as cows and cattle eat: grass, hay, grain, silage, etc. See related question below for more.
When you cut grass in the meadow, this is called mowing the grass and if the grass is to be used for hay it is called mowing the hay or a 'hay mow'.
hay or grass(Y)
pasture grass and hay
The noun ox is the singular form; the plural form is oxen.
grass and leaves and wild hay
all dried grass is called hay. it is where you dry fresh cut grass make it into hay.
Timothy is a grass hay
A timothy grass hay field at maturity is around 40-inches tall, filled with bunch grass. The stems of timothy hay end in a seed head. The 2 to 6-inch leaves are a soft, light green.