Can budgies eat watermelon?

Yes, in small amounts

Yes, in small amounts. Watermelon is safe for budgies and refreshing, but it is mostly water and sugar, so a small cube now and then is plenty.

Portion: A cube about 1 cm (⅜ in) across
How often: Once or twice a week
Sugar: 6.2 g / 100 g

How to serve it

Wash the rind before cutting so dirt on the skin is not carried into the flesh
Cut away the rind
Remove the seeds
Serve a small cube and remove it within a couple of hours

Why

Risks. It offers little nutrition beyond sugar and water. Too much can crowd out more nutritious vegetables and make droppings more watery.

Benefits. Watermelon adds moisture and is well liked on warm days.

Questions owners ask 2

Can budgies eat watermelon seeds?

Watermelon seeds are not a known toxin like apple seeds or stone-fruit pits, but one veterinary school guide advises removing the seeds of all fruit, so it is simplest to take them out.

Can budgies eat watermelon rind?

The rind is not toxic, but it has little value and the outer skin can carry dirt and residues. Stick to the flesh.

Watermelon: nutrition per 100 g

Water	91.5 g
Energy	30 kcal
Sugars	6.2 g
Fat	0.2 g
Protein	0.6 g
Fibre	0.4 g
Calcium	7 mg
Phosphorus	11 mg
Calcium : phosphorus	0.64 : 1
Sodium	1 mg
Vitamin A (RAE)	28 µg
Vitamin C	8.1 mg

“Watermelon, raw”, USDA FoodData Central (SR Legacy, FDC 167765). Public domain.

Sources & method 3

The sources below discuss watermelon for budgies (or for pet birds generally). Confidence: high. Rated on the JOMIZOO Feeding Scale; when good sources disagree we choose the more cautious level.

Feeding Budgies — VCA Animal Hospitals
Fruits and Vegetables in Birds' Diets — VCA Animal Hospitals
How to care for your pet bird — University of Florida Small Animal Hospital, College of Veterinary Medicine