More active birds (show birds and birds in large flights that fly around a lot) and breeding birds (egg laying hens, parents feeding their young) and growing birds need more protein than the average caged pet bird.
(large flights; fly; around a lot) (parents; feeding; their young) (growing birds; need; more protein than the average caged pet bird)
large flights parents growing birds
fly feeding need
around a lot
their young
more protein than the average caged pet bird