Yes — carrots are loaded with beta-carotene for feather and eye health, and the crunch is great beak exercise.
What it means for African greys
African greys particularly benefit from the vitamin A in carrots, which makes it a solid fresh-food choice. Greys can take a larger portion than small parrots.
The full picture on carrots
Beta-carotene converts to vitamin A, the nutrient pet parrots most commonly lack, supporting feather quality, eyesight, and immune function. Raw carrot's density also gives beaks real work — functional enrichment disguised as a vegetable.
Raw sticks for big beaks; grated or thin coins for small ones.
Leave the greens on — the tops are nutritious and fun to shred.