They pass through the body undigested.
Wind-Blown
Berries disperse their seed when animals eat them and then defecate them elsewhere.
I don't know any kind of scientific answer for that question, but I have a Dogwood Tree in my yard and its seeds are in little red berries that fall off the tree, and also the berries are eaten by birds and then dispersed by them in their elimination.
Yes, poison ivy produces white, waxy berries that contain seeds. The seeds are spread by birds and other animals that eat the berries and then disperse them through their droppings, aiding in the plant's reproduction.
Their spiked leaves deter leaf eating animals for eating them. Also their brightly coloured (generally red or brown) berries, which ripen over the winter months, attract birds as it contrasts with the colour of the snow. Birds eating the berries will help disperse its seeds.
yes but certain types of birds.
They eat the berries in the fall when they are ripe. Not all birds eat these berries, so can also depend on fall migration.
Berries have nutrients that birds instinctively crave. Berry eaters include thrushes, like bluebirds and robins, thrashers, mockingbirds and catbirds also relish berries.
The birds lead him to it
Like most birds... the parrot eats fruit. The seeds of the fruit are un-digestible, and they travel through the bird's digestive system, to be ejected when the bird defecates.
Berries are birds main diet only turkeys and chickens mainly eat seed and corn {11}
Probably what you are seeing is a flock of cedar waxwings. These birds love holly berries, and often a large flock will gather and as they feed, resemble a small tornado whirling about the tree.