Opline mutation in lovebirds.

The opaline mutation is a well-known and widely recognized mutation in lovebirds. It is a sex-linked mutation, which means it is located on the sex chromosomes (specifically, the Z chromosome in lovebirds).

The opaline mutation affects the feather coloration and pattern of lovebirds. In lovebirds without the opaline mutation, the normal coloration is referred to as "wild-type" or "green series." With the opaline mutation, the feather colors become more pastel and diluted, resulting in a softer and often paler appearance. The body color of opaline lovebirds can vary depending on the specific mutation and the bird's genetic background.

In opaline lovebirds, the characteristic features include a reduction in melanin pigmentation, resulting in lighter colors, and a change in the distribution and pattern of color on the feathers. The specific color variations can vary depending on the base color of the bird, such as blue, violet, or lutino, and other genetic factors involved.

Opaline is a popular and visually appealing mutation in lovebirds, and breeders often work with this mutation to produce a variety of beautiful color combinations.

1. Inheritance:
The opaline mutation follows a sex-linked recessive pattern of inheritance. This means that the gene responsible for the opaline mutation is located on the Z chromosome (the sex chromosome) and is recessive. As a result, opaline lovebirds can be either males or females, but for a female bird to exhibit the opaline trait, it must inherit the mutation from both parents.
2. Feather Coloration:
The opaline mutation affects the distribution and intensity of color in the feathers. The melanin pigmentation is reduced, resulting in softer and lighter colors. The extent of color reduction and the specific color variations depend on other genetic factors and the base color of the bird.
3. Wing Pattern:
One of the distinctive features of opaline lovebirds is their wing pattern. The flight feathers on the wings often exhibit a broader band of color, giving them a "V" or "U" shape when the wings are folded. This pattern is referred to as the "opaline wing marking."
Eye Color: Opaline lovebirds may also exhibit a change in eye color. The iris color can appear lighter, with shades of red or pink instead of the typical dark iris color seen in wild-type lovebirds.
4. Breeding and Color Variations:
Breeders often work with opaline lovebirds to produce various color combinations and mutations. By combining opaline with other mutations such as lutino, pied, or cinnamon, breeders can create a wide range of visually striking lovebird varieties.

It's important to note that while opaline lovebirds are visually distinct, the mutation itself does not affect the bird's health or behavior. Lovebirds with the opaline mutation can live healthy and fulfilling lives just like their wild-type counterparts.