Machu Picchu Mountain is greener than the Huayna Picchu trail and has many kinds of wild orchids and birds that highlight the path. It is higher than Huayna Picchu, topping out at 10,104 feet.
However, when the female Mallard duck lay eggs, her diet changes to include more animal life than plant matter. In general, Mallards typically eat more plants than animals, and they also eat more plants in the fall and winter seasons. Food selection also has to do with the shape and style of the Mallard's bill.
The runner duck, the Cayuga, the blue Swedish and the buff duck are among the top layer ducks, averaging up to 180 eggs per year. Poor egg layers such as the mallard may lay as few as 60 eggs a year. Some specialized varieties such as the white layer duck can produce nearly 300 eggs a year.