Calci Worms

211 reviews

Our Dried Calci Worms contain extremely high levels of calcium which contributes to stronger bones and eggs.

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Grouped product items
Product Name Price Stock Qty
100g Dried Calci Worms £19.90 per kg
500g Dried Calci Worms £10.98 per kg
1kg Dried Calci Worms £9.49 per kg
5kg Dried Calci Worms £6.20 per kg
12.55kg Dried Calci Worms £5.42 per kg
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About Dried Calci Worms

Dried Calci Worms contain 20 to 40 times more calcium than Dried Mealworms which contributes to stronger bones and eggs. This makes them an excellent alternative.

What are Calci Worms?

Calci Worms (also known as Calcium Worms) are the larvae of the Black Soldier Fly (Hermetia illucens). They are high in protein, energy giving fat, amino acids and incredibly high in calcium.

These dried insects have a positive Calcium to Phosphorous ratio which research has proven promotes increased animal health and contributes to stronger bones and eggs for wild birds. These properties also make them an excellent addition to the diet of growing vertebrates such as hedgehogs and chickens.

How to Feed

Dried Calci Worms are very easy to feed to the wildlife in your garden. We recommend feeding from a special Mealworm Feeder, from a bird table or in a ground feeder.

If you regularly feed seed mixes or other bird foods, you could try adding the calci worms to those feeders to make a DIY seed mix. Or if you're birds are in need of a tasty treat, try soaking the calci worms in water overnight to plump them up before putting them out for your birds (you will need to use a special mealworm feeder, or bird table for this method).

To attract new birds to your garden, we recommend placing a new feeder with the calci worms in near where you’ve seen the birds parch. This gets them used to taking insects from you.

Please ensure that a good source of water is provided if feeding Calci Worms to ensure that your birds are kept hydrated and healthy.


Trust Pilot
4.9 / 5
211 review(s)
Excellent 94% 197 reviews
Great 6% 12 reviews
Average 0% 0 reviews
Poor 1% 1 reviews
Bad 1% 1 reviews
5 stars (197)4 stars (12)3 stars (0)2 stars (1)1 star (1)
Anthon Thorne a week ago
This was the first time I'd bought these calci worms and all my garden birds are very grateful! They look great quality and soon disappear when placed in feeders and on tables!
Ms Marian Davies 2 weeks ago
Loved by all the birdies

All orders over £25 are delivered FREE of charge.

For out of areas (e.g. Northern Ireland, Scottish Highlands and Islands, Isle of Man and outlying areas), please refer to our delivery information for our delivery charges.

Please refer to our delivery information for further delivery details, time frames, options and what to expect.

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Foods ideal for Autumn/ Winter.

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