Catherine Menard and her research team wrote a paper in 2002 to describe the feeding niches of horses and cows in a European wetland. They also used a complimentary site in France, where cattle and horse grazing is a conservation strategy. Their study found that, like Hanley stated, horses ate more than cattle. In addition, Menard et al. (2002) stated that horses foraged 50% longer than cattle and in one month consumed 63% more.
Both animals consumed less vegetation in spring and summer, and more in fall and winter due to increased energy needs