We regularly give the birds enrichment to keep them from getting too bored in their mews. Enrichment might take the form of training new behaviors, listening to novel sounds from my phone speaker, or playing with toys that encourage a raptor's natural inclination to rip and shred.
Each bird is an individual and some are easier to entertain than others. Aldo the kestrel loves training time and will tilt his head with interest at strange noises, but usually ignores any toys in his mew. Conversely, Carson the hawk is always curious about new items and quickly shreds newspaper, cardboard, or even heads of lettuce.
