The segregation and early migration of cranial neural crest cells in the avian embryo.
D000818:Animals; D002465:Cell Movement; D002642:Chick Embryo; D004848:Epithelium / Q000502:physiology; D008636:Mesencephalon / Q000196:embryology; D008854:Microscopy, Electron; D008855:Microscopy, Electron, Scanning; D009432:Neural Crest / Q000502:physiology* / Q000648:ultrastructure