There are several colour mutations known of the Lineolated Parakeet besides the green type form. The first variation, a cinnamon coloured Lineolated Parakeet, was observed in California (USA) in 1958. Also blue or turquoise, respectively, (California/USA 1958 and The Netherlands 1974), yellow (Canada/USA 1986) and cream-coloured colour varieties turned up in the last centuries. In Belgium "silver and golden" birds were reared in 2000; they are called "edged" correctly. Further on one can find white and yellow pied birds sporadically and only in line breeding. Meanwhile also fallows are known, as well as pastel-coloured (probably "recessive dilute") and violet (probably co-dominant) birds. But for these mutations no coherent rules of heredity exist so far.
Additionally there is a so called dark factor (df), which allows several variations in the particular colour varieties.

Drei Farbschläge
Three colour varieties: Lutino, turquoise and green Lineolated Parakeet (from left to right).

For easier estimation of the expected offspring of a Lineolated Parakeet couple I prepared a few examples, which you can find in lists in the corresponding rubric, i.e. "turquoise", "ino/cinnamon" and "dark factor". Of course, these lists aren't complete according to the different possibilities of pairing. But if I would add any more examples it would be too complex.

Please note:
  • The inheritance patterns given (lists with examples) don't lay claim to completeness.
  • For correctness of the calculations no responsibility will be assumed. They had been created in all conscience. But there could occur mistakes. If you find discrepancies or even blunders, please let me know.
  • The programme had been tested before release. If you locate any mistakes, please let me know. Also, the results are without engagement.
  • At least: Heredity is a random process! To that effect the offspring of one couple can be quite different in successive breeds.