What is "beakfuls"

Usage examples of "beakfuls".

He was always hungry, gobbling up in beakfuls the little scraps Kiukiu brought each day.

Tharius turned his eyes away to poke at the food without tasting it, watching this year’s flame-bird as it built its tinder nest on the ledge, flying back and forth across the window with beakfuls of fiber from the pamet fields.