To repeat unassimilated information
Individuals who are close to drowning can also regurgitate their stomach contents and breathe these into the lungs.
emetic effect effectively increases the tolerance levels for toxicity in species which can regurgitate.
They may " mouth gag " or " neck stretch " in an attempt to regurgitate.
gull chicks peck at a red spot on their parents's bill to induce their parents to regurgitate food.