THE SECRETARY BIRD Nature's Most Powerful Wildlife Documentary Ep26

Parent birds feed insects to their chicks for a rich supply of protein essential for rapid growth, building muscle, and developing feathers. While seed-eating adult birds often switch to their natural diet as they mature, young chicks almost universally rely on insects and other arthropods during their initial stages of development. Parent birds may digest the insects, sometimes creating a "crop milk" like pigeons, before regurgitating them to feed their demanding offspring.