Head: Bone structure Directional feather Frontal rise Crown feather length Eye placement Beak and cere shape/width etc. Mask: Depth Spot size Spot shape Wing: Primary and secondary flights Primary and secondary coverts Scapulars and remaining coverts[length, width and shape] Markings Body: Shape Feather structure A fancier may prefer to pair birds excelling in visual attributes, with no known genetic relationship, to seek improvements.
(Primary and secondary flights Primary and secondary; remaining; ) (A fancier; may prefer; to pair birds) Context(A fancier may prefer,List([315, 335))):(A fancier; may prefer to pair; birds excelling in visual attributes) Context(A fancier may prefer,List([315, 335))):(A fancier; may prefer to seek; improvements) (birds; excelling; L:in visual attributes)
A fancier may prefer,List([315, 335)) A fancier may prefer,List([315, 335))
Primary and secondary flights Primary and secondary A fancier A fancier A fancier birds
remaining may prefer may prefer to pair may prefer to seek excelling
to pair birds
birds excelling in visual attributes
improvements
L:in visual attributes