It depends on the bird. Quite often the most colorful displays are because of sexual selection and evolution. When mates go for birds with best and most pretty feathers, they tend to have offspring with very pretty display feathers. And the cycle continues with mates selecting for mates with good feather displays, and good feather displays allowing mating and offspring with good feather displays.
With sexual selection, once the cycle starts, evolution takes over and the whatever criteria that is being selected for is hyper accentuated by evolution, because the organism with that does the best because they get to mate, and their kids also are quite likely to share that same quality.
because it has big ones so it flys better and smaller ones on the tail because it flaps them when flying in air and medium every where else because it keeps it warmer every where.
The reason that birds may have different feathers and colours,because they may be from different species of birds.Like the different types and styles of birds.
cause of their genes and what traits get passed down.
like if your were to do a punnett squareto see what percent of the birds were to get bright feathers.
Because feathers are lighter for the birds to fly instead of fur that is heavier. Scales are used by fishes to swim.
primary flight feathers, secondary flight feathers, and tertiary flight feathers.
Feathers.
All birds have a body covering of feathers. It is sometimes referred to as the bird's plumage.These feathers may be different in structure, depending on the species, but having a body covering of feathers is one of the defining characteristics of birds.
Yes. Birds are animals that have feathers.
Yes. Some types of birds (like ducks) moult all their feathers at once and so have a period when they cannot fly. Other change one or more feathers at a time and can always fly.
All birds have feathers and birds are the only animals that do!
As with other birds, the wing of a blue jay is covered in feathers.
Because all birds live in different environments and weather conditions. ------------------------------------------------------------------------------------- Birds feathers have evolved to serve a number of purposes, the most important of which are warmth and flight. The feathers need for warmth have to be small, soft and fluffy while the feathers needed for flight have to be large, strong and sleek.
No. Only birds have feathers. Kangaroos are mammals, not birds.
Yes. Kingfishers are birds, and all birds have feathers.
Pretty much all birds have feathers
no they have feathers
There are no animals that have feathers besides birds.