Nichelings should, now that they have wings, be able to have Feathers and now that they have scorpion tails, other arthropod appendages should be able to get in   Let me start with this   Avian Genes Feathered Body +1 flying with wings +2 cold resistance +2 heat resistance -2 stealth   Feather crest(in horn slot) +1 attractiveness +distasteful appearance   Clawed wings +1 digging +3 flight if genes are identical