From Starbounder - Starbound Wiki
||^orange;Avians^reset; next I think! Probably best to ^green;go to planets where ^orange;jungle^white; terrain is in abundance - Avians like to inhabit such places. You'll find those kinds of planets around ^orange;radioactive stars^white;. See you soon, dear. Be careful, and happy hunting!
||With that last clue we've got all we need to find the Avian artifact! Thank you for all that hard work.