usally small fine grains like thisle and or wheat, they prefer those but will eat any thing.
Mice eat grain, owls eat mice. Less grain, less mice, less owls.
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Most all cats will hunt and consume mice .
grain and stuff. Field mice eat whatever they can find. Field mice commonly eat seeds, new plant shoots, berries, fruits, insects, invertebrates, and even carrion.
seeds of many kinds of plants
all kinds of bugs. except SPIDERS
They would eat mice, moles and rats if they can catch them.
Grain is consumed by a variety of animals including birds (such as sparrows and pigeons), rodents (such as mice and squirrels), insects (such as weevils and beetles), and livestock (such as cows and sheep). In the wild, grain is an important food source for many small animals.
i am pretty sure that they do eat mice because they are field mice and field mice eat grain and if the grass grows maybe corn crops then the field mice would eat it !!
mice, snakes, and other kinds of very small animals
Usually, Rattlesnakes eat all kinds of insects. The Rattlesnake also will eat mice and small bunnies. (poor things ;(. )
Well mice are fast breeders so they will eat the crops. And snakes can eat lots of mice but they have lots of babys and they can have 10-13 babys every 3 weeks so its very hard to get them all and they will eat lots of the crops. But their cute =D The snake population will increase.