Yes — dandelion greens are a wild-diet staple: extremely nutritious and adored by most parrots. Just source them from clean, unsprayed ground.
Keeper's noteOnly from areas free of pesticides, herbicides, and road runoff — your own untreated lawn or a farmers-market bunch. The whole plant is fair game: leaves, flowers, roots.
Why dandelion greens is good for parrots
Dandelion greens beat spinach on vitamin A, vitamin K, and calcium, with flowers and roots safe too. Wild parrots eat exactly this kind of forage daily. The only risk isn't the plant — it's what was sprayed on it or what ran off the road next to it.
How to serve it
Wash thoroughly even from clean sources.
Offer whole leaves and flowers for natural foraging.
Store-bought bunches appear in the salad-greens section spring through fall.