Contour feathers are on the wings and tail.
Down feathers
contour feathers
pterylae
Definition: The outer layer of feathers that cover a bird's body, wings, and tail and give the bird its characteristic appearance. Contour feathers differ from other body feathers (such as down and semiplumes) in that they consist of two vanes along a shaft that have interlocking barbs that give strenght and structure to the feather shape
Hooks increase the strength of contour feathers because it allows them to interlock with each other. The process works similar to Velcro.
contour
Down
Ostriches have down feathers. Because they can not fly they have no need for contour feathers...
contour
contour feathers,flight feathers,primary feathers and secondary feathers
Contour feathers are long, strong, and smooth, while down feathers are soft and fluffy. Contour feathers give birds their coloring and shape and are used in flight. Down feathers provide a layer of insulation.
contour feathers
yes
Contour feathers are found on every bird. They are not linked to any specific type of bird. Hope this answers your question! :)
The down feathers (or the soft feathers underneath the outside feathers).
pterylae
contour
Caruncle