01/09/2024
📚 Educational Post 📚
The Pied Cockatiel (Light, Heavy & Clear)
Common Abbreviation: Pd or pD
When it comes to the Pied mutation, there's a lot of information! And sometimes this information paired with pictures of a Cockatiel bird can make a person question whether their bird is a Pied or not.
There is a particular confusion between Pieds, Normal Grays and Normal Gray Pearls, and a particular confusion between Whiteface Pieds, Normal Whiteface and Whiteface Pearls. But there is a difference!
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To understand the Pied mutation, one must first know what the term "Pied" refers to in a Cockatiel.
It refers to a FLIGHT or TAIL feather that is either solid white (in Whiteface Pieds) or solid yellow (in Natural Pieds). Basically, a feather that is = FREE of gray.
These featherss that lack any color gray are also called CLEAR feathers.
Depending on how many feathers a Pied has that are clear feathers, they are categorized into 3 classifications:
1️⃣ A HEAVY Pied has MORE clear feathers and FEW gray feathers.
2️⃣ A LIGHT Pied has has LESS clear feathers and MORE gray feathers
3️⃣ A CLEAR Pied has ALL clear feathers and ZERO gray feathers.
- Clear Pieds are often confused with Lutinos or Whiteface Lutinos (which are completely different mutations). The primary visual difference between the two is eye color: Lutinos will have a red eye whereas Clear Pieds will have a black eye and brown pupil.
- Clear Pieds / Clear Whiteface Pieds are considered rare as it usually takes a few generations of intentional and selective breeding to obtain this mutation.
What is the PIED mutation?
1️⃣ PIED is a pattern mutation, and there are no two Pieds that look the same. They are a combination of 3 pigment colors - liprochrome, melanin and pstitacin - which are responsible for the yellow, gray, orange colors , respectively. In some cases, the melanin (gray) color appears to be a light brown, which indicates the presence of the Cinnamon mutation gene.
Pieds can be Natural Pieds - meaning they have yellow and gray in their plumage and orange cheeks, or Pieds can be Whiteface Pieds - meaning they are only white and gray and lack the yellow and orange colors (and always will).
2️⃣ Pied is a RECESSIVE mutation. In a breeding, parent pair of birds, this means that BOTH mom and dad MUST carrry the Pied gene to have visual PIED babies.
If only one parent carries the gene, the chick will be split to Pied (meaning it will carry the gene in it's genetic make-up) but it will NOT be a visual Pied.
In short - you can't have a PIED baby if both parents do not carry the gene.
3️⃣ Pied is an ANTI-DIMORPHIC mutation: males and females can display or the lack the same colors and patterns as either s*x. This means they do NOT occur in gender-distinguishing colors. no matter the age, markings, patterns or if it has molted. The colors they develop as chicks do not change as adults.
What is the visual difference between birds that are Pieds and aren't Pieds?
1️⃣ To officially be classify as a PIED, a bird must have:
- Solid yellow tail and/or flight feathers with yellow feather veins for Natural Pieds, or
- Solid white tail and/or flight feathers with white feather veins for Whiteface Pieds.
2️⃣ NOT a Pied - If a bird has yellow tail feathers with GRAY feather veins.
- Normal Gray Pearl females and Normal Gray females have YELLOW tail feathers with GRAY feather veins, which is normal!
- Normal Whiteface Pearl females and Normal Whiteface females have WHITE tail feathers with GRAY feather veins, which is normal!
3️⃣ Split to Pied... but NOT a Pied
It is possible for a Cockatiel (male or female) to carry certain physical aspects of the Pied mutation within its genetic makeup without officially being classified as a Pied. We call this type of Cockatiel being "split to Pied"
- Depending if the bird is an orange cheek or whiteface cheek mutation, the bird will have yellow or white patches on the back of the head or neck area, or
- yellow or white feathers mixed in within a mostly gray head crest
- a bird may have some black talon nails and some white/pink nails
How can a Pied be visually s*xed?
1️⃣ Pied does not adhere to many of the mutations and genetics "rules" that other mutations follow, which is why Pied almost 100% requires a DNA test (if you are trying to determine gender based SOLELY on looks)
2️⃣ There is one exception in visually s*xing a Pied Cockatiel, and this exeption is based on a 3 part condition:
1 - It is a Pied mutation + a s*xlinked mutation (usually Pearl or Cinnamon being the most common)
2 - Knowledge of the parents' mutations must be known
3 - Mom CANNOT be the same visual s*x-linked mutation as the Pied bird in question.
* If mom is NOT the same s*x-linked mutation, the Pied offspring in question is a female.
* If mom IS the same s*x-linked mutation, the Pied offspring cannot be s*xed UNLESS it carries a second s*x-linked mutation that the mom is not.
3️⃣ Pied Pearls
- Female Pied Pearls will keep their pearls for their entire life, just like other Pearl mutation females. Pied Pearls (usually 3-4 years old and older) are females.
- Male Pied Pearls will eventually lose their Pearls (in most cases). In some rare exceptions exist, a Pied Pearl male may never lose their pearls. If they do lose their pearls, as most do, it usually takes longer to molt them completely away.
Pictured: Pied Cockatiels and NON-Pied Cockatiels, for reference only (see individual pictures for captions)