The second effect of the pied cockatiel gene is to cause those flight and tail feathers that are whitened to carry a broad spread of yellow pigment rather than the usual barring. the normal body colour and less white or yellow. var sc_partition=6; As a result, there has been a search for subtle indicators of what splits a cockatiel is carrying. if(MSFPhover) { MSFPnav8n=MSFPpreload("_derived/Pastelsilver.html_cmp_brisbane-cockatiels-theme110_vbtn.gif"); MSFPnav8h=MSFPpreload("_derived/Pastelsilver.html_cmp_brisbane-cockatiels-theme110_vbtn_a.gif"); } // -->