Isbar

Swedish Isbar

Many years ago, this breed was one of the breeds that started it all for us. They are the only pure breed of chicken that lays a naturally green tinted egg. All other green egg layers are hybrids that folks have created. The Swedish Isbar also has the ability to put purple speckles over top of their green eggs making them an excellent layer for the daily egg collecting basket.

Recently renamed “Silverudds Blue” by a group of breeders focused on preserving the breed, we have decided to continue to call them by Isbar out of respect to the long since deceased breeder that created them Martin Silverudd. We worked with this breed in the early years of our hatchery and had to put them on the back burner until we could find fresh genetics to mix with our line to ensure that robust and strong disease resistant chicks would hatch. In 2019 we found the fresh blood we were looking for and paired it with the original line of birds we had been carefully stewarding all those years. We are so pleased to be able to bring them back in all their glory for 2026 with all of our roosters tested homozygous for the blue gene. This breed is truly a special heritage breed that is worthy of being in anyones flock.

They are a smaller framed bird that lays generously sized eggs, usually year round of given the proper conditions. Their eyes can be pure black or black with a golden ring and they have a deep soulful gaze about them. They are confident in what they are and are a true delight to have in the flock.

These rare and beautiful birds come in three feather colors: blue, black and splash. Our most commonly hatched color currently is splash and black is our rarest, if you have a specific color of chick you would like, let us know in the checkout process and we will be happy to try to accommodate your request based on who hatches that week.

The hens are scrappy foragers that will require less grain than the typical hen if allowed to roam on a pasture. They will produce 200-230 green eggs a year that you and your friends will enjoy the beauty of.

We work exclusively with the first generation import of Isbar and have secured genetics that produce chicks free of immunity issues.

End up with a rooster and don’t know what to do with him? If you have the ability to keep him and want to breed him with your hens here is a chart offering what colors of chicks you can expect to see based on your current colors of chickens:

Statistics:

Weight: 
Hens 5-6  Lbs
Roosters 7-8 Lbs
Color Of Eggs: Green, Moss Green, Greenish Blue
Size Of Eggs: Medium to Large
Quantity Of Eggs: Very Prolific Layer, Especially In Cold Climates
Temperament: Extremely Docile and Friendly
Dual Purpose Breed (Meat): No
Origin: Sweden

Morning Feeding With The Hens

Blue, Black and Splash Isbar Chicks

Quick Breed Stats

Egg Color: green with speckles

Cosmetic Egg Bloom: Can have reverse speckles on occasion that look white, all eggs laid have their natural protective bloom.

Egg Size: standard

Egg Texture: matted 

Egg Production During Spring and Summer: high 5 eggs a week

Meat Production: best for egg production, males have some meat on them.

Heat Tolerance: very good if shade is provided

Cold Tolerance: very good if free from drafts. Use vaseline to prevent frostbite in winter for Roosters with large combs

Disposition: laid back and very curious. Will come running for treats.

Weeks to Maturity: 22

Free Range Ability: very high, very predator wise – roosters are excellent protectors of the hens.

Likelihood They Will Want To Hatch Eggs: low

Prices:

Straight Run Chicks: $25 Each.

Isbar (Silverudd’s Blue)

The world’s only purebred green-egg chicken 

Isbar — recently renamed Silverudd’s Blue in honor of their creator Martin Silverudd — are one of the most remarkable chicken breeds in the world. They are the only purebred chicken that lays a naturally green-tinted egg. Every other green-egg layer (olive eggers, sage eggers, moss eggers) is a hybrid cross of brown and blue parents. Isbar carry the blue-egg gene as a recognized breed standard.

They were one of the breeds that started it all for us. After pausing the line for several years to source fresh genetic input, our Isbar are back for 2026 — first-generation imports paired with our proven Alchemist genetics. All of our breeding roosters test homozygous for the blue-egg gene, meaning the trait is reliably passed down.

Quick Breed Stats

What Makes Our Isbar (Silverudd’s Blue) Different

• The ONLY recognized purebred chicken that lays a green egg — every other green-egg breed is a hybrid.
• Created by Swedish breeder Martin Silverudd; recognized internationally.
• All our breeding roosters test homozygous for the blue-egg gene — trait reliably inherited.
• First-generation imports paired with our proven Alchemist genetics.
• Free of the historical immune-system issues that plagued earlier Isbar lines.
• Particularly prolific in cold climates — selected for Nordic winters.
• Striking deep black eyes (occasionally with a gold ring around the iris).

Care Basics

• Cold-hardy: Isbar are at their best in cool climates and lay strongly through winter.
• Standard 3-4 sq ft coop / 10+ sq ft run per hen.
• Excellent foragers — they’re intelligent and active outside.
• Standard 20% chick starter through 18 weeks, then 16-17% layer feed.

Pricing

Shipping is a flat $70 for up to 25 chicks via overnight USPS Express. Seasonal minimums: 10 chicks March-May and October, 6 chicks June-September. Local farm pickup is free with no minimum (we recommend at least two chicks so a lone chick does not get lonely).

Pair Your Isbar (Silverudd’s Blue) With

• Olive Eggers — Isbar are part of the olive egger parent lineage
• Moss Eggers — another green-egg layer for shade variation
• Sage Eggers — for lighter green alongside the Isbar’s moss tones
• French Black Copper Marans — for chocolate-brown contrast

Common Questions

Are Isbar really purebred?

Yes. Isbar (Silverudd’s Blue) are a recognized purebred chicken developed by Swedish breeder Martin Silverudd. They are the only purebred chicken in the world that lays a naturally green-tinted egg.

Why are you still calling them Isbar?

The breed was officially renamed Silverudd’s Blue to honor its creator. We continue to use the original name ‘Isbar’ out of respect for breeder tradition, It is what Martin Silvered named them so we stick with that. The two names refer to the same breed.

What does homozygous mean?

Our breeding roosters carry two copies of the blue-egg gene (homozygous), rather than just one (heterozygous). A homozygous rooster will pass the blue-egg gene to every chick he sires, ensuring the trait holds in the next generation.

Will my Isbar’s eggs be green or blue?

Most Isbar lay a true green — somewhere between moss and seafoam. Some lay greenish-blue. Many hens add purple speckling for visual drama.