melissasparrots
Rollerblading along the road
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I don't think breeding them is unethical by itself. However, there is a lot of unethical color breeding. The white color is just a gene that is probably recessive so it will be easy to preserve the wild type. The problem as you mentioned is if LOTS of people decide to start breeding macaws for color instead of health. Then you start seeing smaller or larger size, poor feather quality, different body proportions and other problems seeping into even the wild type captive population because so many of them come from a lineage that included some mutations. I don't think I've ever seen a species of small bird that maintained the overall health of the captive population at a high level once mutations started being competitively bred. You can buy healthy cockatiels and lovebirds etc, but the overall shape and look of the species is starting to change, with more dying of health problems way before the birds 30 years ago were even though we are now feeding them so much better.