I believe it would be polyphyletic.
Polyphyletic groups are formed when two lineages convergently evolve similar character states. Organisms classified into the same polyphyletic group share phenetic homoplasies as opposed to homologies. The key difference between paraphyletic and polyphyletic groups is that paraphyletic contain their common ancestor, whereas polyphyletic groups do not.
Contour: Gives the bird its stream line shape.
<span>Down feathers: Keeps the bird warm.</span>
Chemicals produced by bacteria that limit the growth of other bacteria are called antibiotics.