A quick search around the ground under the eagle’s nest, one can find the remnants of meals-past including pellets or “castings”. These regurgitated clumps of indigestible prey parts usually consist of fur, feathers and bits of bone that weren’t completely dissolved by the acid in the eagle’s stomach. Around 12 to 18 hours after a meal, or just before its next meal, eagles will bring up a compressed mucus lined pellet from their gizzard, having extracted all digestible nutrients, to make way for the next feast.
