The group will work to continuously wear down the much larger prey animal, using their wings and aggressive pecking to herd him away from the adults, ripping and tearing at his flesh until he finally weakens and dies. This process may take several hours or even days, but it's worth the effort if they succeed, for the carcass of a single snuffalo (of even a juvenile) can feed them for over a month.
Art for two species from Serina's Kyran Islands which lived during the Late Tempuscene (40 MYH), the strange tripedal snuffalo, an early megafaunal offshoot of the soft-billed birds, the line that would eventually lead to the tentacled birds that come to populate the moon's later periods, and the vicious butcherraptors, a near-flightless bird-of-prey species which evolved from ancestral shriekers that arrived on the archipelago relatively recently, adapting to hunt the isle's big game.
What an amazing sense of storytelling in a single picture! I really love the dynamic way you pictured the butcherraptors and made them truly feel like vicious and ruthless predators!
The snuffalo also feels like it has a lot of weight and character to it!