How do birds distribute seed? ...
Answers: Seeds are basicly not digested in birds, and it pass out with their misuse matter (manure), which make the seeds much easier to grow once the droppings on the ground cools off beside a bit of rain. Some seed are also very catchy to the birds feathers and thus get transported to the distance where they are competent to release them.
when they eat and don't digest them economically, they poop them out... also if they happen to seize stuck on the bird (on their feet and feathers) they subsequent fall stale and distribute