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.
A Robin's Favorite Winter Foods In winter robins concentrate on berry bushes, trees and vines, like the bittersweet vine above. (On warm days, though, you might spot a robin running on lawns, searching for worms!) Winter robins eat berries, other fruits, and seeds they find on shrubs, trees, and vines.