Hi, Thanks for all the information. I have been loitering for a little while reading various threads.
Yes the two birds are from my flock. the yellow budgie is a recent arrival I purchased. The blue bird is one of my babies from last year. He has a sister the same but olive green.
This is their parents, George and Mildred, Mildred, the mother is the blue bird. I don't know what sort these are but I guess the cock is split with a blue bird to get the beautiful blue baby. cheers
Last edited by sputnik; 02-01-2017 at 08:45 AM.
Reason: better image inserted
You stated the sister is olive green. A sky blue (zero dark factor) hen cannot produce an olive green (2 dark factors) chick, even if the father is olive green (2 dark factors). I speculate the sister is grey-green like her father, with the grey color-adding factor making the green appear to be darker.
Would you like to post a picture of sister so the mutations experts can chime in? I'm not an expert but I've studied mutations a bit.
Indeed she is a grey green opaline budgie. From this photo you can see it by the colour on her main tail feathers, which are black instead of the normal dark blue colour seen on olive green budgies and other normal varieties.
RIP sweet Tito (Summer 2008 - January 17th 2013).
You are missed and never will be forgotten.