Females emit a loud quack, while the male's call is more of a muttering. Mallard is ancestor of the domestic duck. It interbreeds with both domestic and wild ducks for an assortment of varieties. Fruit is a drupe that is greenish, reddish, and eventually turns black. It is a preferred wildlife food.
Drupes are different from berries.
They have a stone encasing the seed, while berries have a fleshy covering. This tree yields valuable furniture timber. Common bluegrass tree which grows on moist sites and soils. Member of the elm family, with characteristic elm leaves which are simple, alternate, serrate and asymmetrical at the leaf base. Produces a dark orange-red drupe fruit, good for wildlife.