At the time every year when autumn gives way to the chills of winter, the Minccino emerge like an army from their burrows to clean away every fallen leaf in sight. Although these pokemon are capable of feeding on dead leaves, and do consider this season a feast, the amount of leaves dropped from Unova's trees dwarfs even their enormous appetites, and most leaves are simply swept away by their broom like tails – wherever "away" may be.
What the Minccino care about is not, as many have imagined, some divine sense of cleanliness or order, but the practical concern that the tall grass and shrubs on which these pokemon feed are not strangled by a coat of dead leaves. This is demonstrated by their lack of concern for where the leaves go, whether they are stuffed in dead trees, swept into other pokemon's burrows, or swept onto paved roads in human cities, although many towns have had success in directing wild Minccino to sweep leaves into compost piles.
The Minccino do not practice true agriculture, any more than Pachirisu do by burying nuts, but their instinctual behavior has much of the same effect; when Unova was first settled, many are reputed to have been amazed that grasses grew under trees in the absence of human cultivation. That it is instinct can be demonstrated by the so-called "green floor experiment", for in captivity these pokemon will just as vigorously clear away all sorts of human detritus, provided that the surface they clear is green. Many Minccino trainers, grateful for their pokemon's assistance, have carpeted their whole houses in that color, while others extirpate all traces of green from their house, for a Minccino's idea of cleanliness is often at odds with knowing the locations of one's own possessions.