For centuries, salmon eggs have puzzled collectors and experts. These rare eggs, often found in groups, challenge the common understanding of avian shell shades. Can they be attributed to a special genetic mutation? https://docs.google.com/spreadsheets/d/1qL-aIM5KxaBFeWx9uqNsFK4KthW88k7ORDu_7a02O8s/edit?usp=sharing