Parrot Diet Calculator - How Much Your Parrot Eats a Day

How much a parrot really eats in a day

Weigh what goes into the bowls in the morning and what is left 24 hours later, and the parrot diet calculator turns the two numbers into grams eaten, the share of pellets, seed and fresh food, and the change in your bird's weight. It does not hand out a gram portion per species, because veterinary references do not publish one. It measures your own bird instead, which is what an avian vet asks for when appetite or weight starts to drift.

Quick start: a budgie of 35 g. Morning: 10 g pellets, 3 g seed mix, 5 g chopped vegetables. Next morning left over, husks included: 4.5, 1.5 and 3 g. The result: 9.0 g eaten (0.32 oz), 25.7% of body weight, of which pellets 61.1%, seed 16.7%, fresh food 22.2%.

A 24-hour weigh-in, box by box

Bird weight - grams, on a kitchen scale or a perch scale, at the same time of day each time. Bird scales read in grams in the US too.
Previous weight and target weight - optional. The first gives the change since the last weigh-in, the second compares the bird with the weight your vet set.
Birds sharing these bowls - empty means one. With more, the result is an average per bird.
Put in and left after 24 h - three pairs: pellets, seed mix, vegetables and fruit. Put the empty bowl on the scale, zero it, add the food. A day later collect everything left in and under the bowl, husks too, and weigh it in the same zeroed bowl. An empty bowl is 0.
Bag of food - optional: pellets or seed, the size in pounds, ounces or grams, and the price. The result says how many days the bag lasts and what a month of feeding costs.

Eight birds, eight readings

Each case was run through the calculator. The figures in the results are what it prints.

Budgie on a mixed menu

Situation: 35 g, pellets 10 / 4.5, seed 3 / 1.5, fresh 5 / 3 g.

Result: 9.0 g eaten, half of the 18 g that went in. Pellets 61.1% of the meal, a little under the range a Texas A&M avian vet recommends.

Budgie on seed only

Situation: 35 g, seed 8 / 4.5 g, husks weighed with the leftovers.

Result: 3.5 g eaten, 10.0% of body weight, seed 100%. A full-looking bowl of empty husks is the classic trap here: the scale shows that less than half of the seed was actually eaten. The calculator adds the Merck note on seed-heavy diets.

Cockatiel halfway through a switch to pellets

Situation: 90 g, pellets 12 / 7, seed 6 / 2, fresh 10 / 6 g.

Result: 13.0 g eaten (0.46 oz), 14.4% of body weight. Pellets 38.5%, seed and fresh food 30.8% each. Weekly runs show whether the pellet share is really climbing.

African gray on pellets and vegetables

Situation: 450 g, pellets 30 / 6, fresh 20 / 12 g.

Result: 32.0 g eaten, 7.1% of body weight. Pellets 75.0%, inside 70-85%. Large parrots eat a much smaller share of their weight than budgies.

Two lovebirds at one set of bowls

Situation: 50 g, birds 2, pellets 12 / 4, fresh 8 / 5 g.

Result: 5.5 g per bird on average, 11.0% of body weight, pellets 72.7%. Whether one bird ate most of it, no bowl can tell; separate weigh-ins of the birds can.

Cockatiel that lost weight in a week

Situation: 85 g today, 95 g a week ago.

Result: -10.5%, shown in red with the LafeberVet advice: a bird that loses 10% of its weight over any period should see a vet.

Amazon above the weight the vet set

Situation: 520 g, target 430 g.

Result: 20.9% above target, past the Merck Veterinary Manual line for obesity (more than 20% above ideal). Merck lists Amazon parrots among the species most prone to it.

How long a bag of pellets lasts

Situation: pellets put in 30 g a day, bag 2 lb for $18.

Result: 907 g lasts 30 days, a month of feeding costs $17.86, $9.00 per lb. The count uses what goes into the bowl, because the leftovers are bought too.

The five weigh-ins with food in the bowls, side by side. The share of body weight falls as the bird gets bigger, which is why a gram figure copied from one species says little about another.

Case	Bird weight	Eaten in 24 h	Share of body weight	Pellets in the meal
Budgie, mixed menu	35 g	9.0 g	25.7%	61.1%
Budgie, seed only	35 g	3.5 g	10.0%	0%
Cockatiel, switching	90 g	13.0 g	14.4%	38.5%
African gray	450 g	32.0 g	7.1%	75.0%
Lovebirds, per bird	50 g	5.5 g	11.0%	72.7%

Lines the result checks against

The calculator colors a reading when it crosses one of these lines. Each comes from a veterinary source, read in the original.

Reading	Line	Source	What the result shows
Weight loss	10% over any period, or loss 3 days in a row	LafeberVet	Red box: get a veterinary check
Weight gain	10% or more	same line, other direction	Amber box: show the log to the vet
Above target weight	more than 20%	Merck Veterinary Manual	Red box: obese by Merck's definition
Pellets in what was eaten	70-85%	Texas A&M College of Veterinary Medicine	Amber note that the share is in range
Seed in what was eaten	more than 50%	Merck Veterinary Manual (seed and nut diets and obesity)	Amber note: switch gradually, keep weighing
Nothing eaten	0 g in 24 hours	World Parrot Trust (birds hide illness)	Red box: call an avian vet today

Sources disagree on how small a loss matters. Some bird care sources react to a drop of 2-4% over a few days, so for a 35 g budgie even 1 g deserves a second weigh-in the next morning.

Parrot owners ask

How much should a parrot eat a day?

There is no single gram figure in veterinary references, and care guides differ several times over. Small birds eat a much larger share of their weight than large ones: in the cases above a budgie ate between 10.0 and 25.7% of its weight, an African gray 7.1%. The useful number is your bird's own intake, measured the same way on several days.

Why weigh the husks with the leftovers?

Because they were in the bowl in the morning. Seed weighed in with the husk, eaten kernels gone, husks left: the difference is what the bird swallowed. Skip the husks and the calculator counts them as eaten.

What share of the diet should be pellets?

Dr. Ashley Navarrette of the Texas A&M College of Veterinary Medicine recommends about 70-85% pellets or formulated diet, with fruits, vegetables and legumes making up the rest. The calculator measures the share by weight eaten, which is the closest a kitchen scale gets.

Why does the fresh food reading run a little high?

Chopped vegetables and fruit dry out over 24 hours, so the leftovers weigh less than the same pieces did in the morning. The lost water shows up as eaten. For a closer figure, weigh the fresh bowl after a few hours and leave the dry food on the 24-hour cycle.

How often should I weigh my bird?

The Merck Veterinary Manual suggests weighing birds weekly. Do it at the same time of day, because a meal and droppings shift the number. Daily weighing makes the three-days-in-a-row rule from LafeberVet usable.

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