Do birds help plants grow

Birds of Prey are typically classified as carnivores, however some birds have may have unusual behaviours...like this i found earlier :P

Secretary birds regurgitate pellets after the prey is digested. The pellets consist of fur, bones, and invertebrate exoskeletons. .Sometimes grass is found in the pellets. It is unknown whether the birds swallow grass incidentally along with the prey, or if they swallow it intentionally to help hold the pellet together when there is little fur present. Stones, which are swallowed to help in breaking up the exoskeletons of larger invertebrates, have also been found in the pellets Secretary bird pellets are found around and in the nest and are especially helpful to researchers in analyzing the diet of birds in that area.