Johnston & Jeff Dried Calciworms – 500g
Calcium-rich dried calciworms for wild birds, providing a nutritious source of protein and fat for year-round feeding.
Johnston & Jeff Dried Calciworms are a highly nutritious wild bird food made from dried Black Soldier Fly larvae.
Naturally rich in calcium as well as protein and fat, calciworms provide a valuable addition to your garden birds' diet throughout the year.
Calcium is particularly important for healthy skeletal development and egg formation, making calciworms especially useful during the breeding and nesting season.
They can be offered on their own, mixed with your usual wild bird seed, fed from a suitable mealworm feeder or placed on a bird table or ground feeding tray.
Key Features
Premium dried calciworms from Johnston & Jeff
Made from dried Black Soldier Fly larvae
Naturally high in calcium
Good source of protein and fat
Helps support healthy bones
Valuable during egg production and the nesting season
Suitable for year-round feeding
Particularly beneficial during winter and spring
Can be fed alone or mixed with wild bird seed
Suitable for a wide variety of garden birds
Convenient 500g pack
What Are Calciworms?
Calciworms are the dried larvae of the Black Soldier Fly, scientifically known as Hermetia illucens.
They are similar in appearance and use to dried mealworms but naturally contain considerably higher levels of calcium.
This makes them a useful high-energy supplementary food for wild birds, especially at times of increased nutritional demand.
Suitable for a Wide Range of Garden Birds
Johnston & Jeff Dried Calciworms are enjoyed by many common garden bird species, including:
Robins
Blackbirds
Blue Tits
Great Tits
Coal Tits
Sparrows
Starlings
Dunnocks
Finches
Nuthatches
Wrens
Thrushes
Woodpeckers
Wagtails
They are an excellent choice for anyone looking to attract a wider variety of insect-eating birds to their garden.
How to Feed
Dried calciworms can be offered in several ways:
From a mealworm or insect feeder
On a bird table
In a ground feeding tray
Scattered in a suitable feeding area
Mixed with your normal wild bird seed
Always provide clean, fresh drinking water alongside your bird food.
Feeding During Nesting Season
During spring and when fledglings are around, the calciworms can be soaked in warm water for approximately 20–30 minutes before feeding.
This softens the worms and adds moisture, making them easier for adult birds to feed to their young.
Why Feed Calciworms?
Calcium plays an important role in birds' diets, helping support:
Healthy bones and skeletal development
Egg formation
Normal muscle function
Normal nerve function
Calciworms also provide protein and fat, making them a useful high-energy addition to a balanced wild bird feeding routine.
Product Details
Brand: Johnston & Jeff
Product: Dried Calciworms
Feed Type: Dried Insect Wild Bird Food
Composition: Dried Black Soldier Fly Larvae
Species: Hermetia illucens
Pack Size: 500g
Manufacturer Product Code: CW500
EAN / Barcode: 5031871987751
Suitable For: Wild garden birds
Feeding Period: All year round
A nutritious addition to your garden bird feeding station and particularly useful during the colder months and nesting season.
Available from Croot’s Country Store in-store and online.