are birds born with feathers?
154898
Technically yes, but they are so fine they are said to be covered with "down."
975004
A birds bones are lighter and hollowed out.  The feathers are lighter then human hair.  There bodies are streamlined similar to an airplane.  Depending on what kind of bird,  these adaptations may vary.  An ostrich is much heaviar then a falcon.  A falcon is much like a fighter jet, it is built for flight and speed.  They achieve high speeds by having thin wings and light bones,  many birds are built in this way and some may not fit the category.  Some are not built for flight.  But these adaptations are set to make different birds greatly adaptable to there surroundings.
371411
No. \n    Now let us look at the question deeply.\n \n 1)THE SHELL -- When an egg is laid, it has an outer shell of calcium carbonate. This shell will NOT increase or decrease in its weight any time after it is formed till the chick is hatched and even after that.The shell only protects the egg and allows gaseous exchange and plays no other role.\n \n2)THE YOLK & THE ALBUMEN -- This part of the egg contains two important things viz. the fertilized nucleus and the reserve food for the growth of the embryo/chick.\nThe fertilized nucleus is embedded in the yellow yolk and can hardly be seen with the naked eye initially ;but as the embryo begins to grow ,this embryo can be seen with the naked eye with its beating heart and the web of blood vessels (but you have to break open the egg and then it is a waste.)\n \n The raw material for the growth is drawn from the yolk(the yellow of the egg ) and the albumen ( the white of the egg. ), i.e. the reserve food is converted in to embryo and then the chick. There is no loss or gain of weight here.\n\nNow comes the crux of the problem.\n \n3)THE ENERGY OR THE FUEL FOR THE DEVELOPMENT -- The energy required for this development also comes from the SAME reserve food material (Yolk & Albumen).\n This conversion of food in to energy means LOSS in the weight. \n\n Thus, if you weigh a newly laid egg and newly hatched chick with the tattered shell the egg will weigh more. (you can discount the weight of the shell from both the readings).\n \n4)THE CONCLUSION -- The chick does not gain any weight in fact it has less weight than the egg. It begins to gain weight only when it begins to feed on its own.\nThis is applicable for all the birds.
870400
One feather at a time.
761767
Birds evolved from a group of therapod dinosaurs. "Transitional fossils " do exist, the most famous been the Jurassic  Archaeopteryx, which had a teeth like and a long bony tail a reptile, but feathers like a bird. Beautifully preserved specimens have been found in fine grained  Solnhofen limestones in Germany .
705913
lice can come from several diffrent things birds are a big carrier also cats they can not live on any source that does not supply them with a food source blood they like very clean hair birds humans cats are usaly very clean so there is a little light on the subject i hope
395275
In nature, living things evolve through changes in their DNA. In an animal like a chicken, DNA from a male sperm cell and a female ovum meet and combine to form a zygote -- the first cell of a new baby chicken. This first cell divides innumerable times to form all of the cells of the complete animal. In any animal, every cell contains exactly the same DNA, and that DNA comes from the zygote.\n\nChickens evolved from non-chickens through small changes caused by the mixing of male and female DNA or by mutations to the DNA that produced the zygote. These changes and mutations only have an effect at the point where a new zygote is created. That is, two non-chickens mated and the DNA in their new zygote contained the mutation(s) that produced the first true chicken. That one zygote cell divided to produce the first true chicken.\n\nPrior to that first true chicken zygote, there were only non-chickens. The zygote cell is the only place where DNA mutations could produce a new animal, and the zygote cell is housed in the chicken's egg. So, the egg must have come first.
82718
The egg came first. Creatures evolved. There was once a chicken-dinosaur like creature, or maybe something like that, maybe not dinosaur, but whether it was from dinosaurs, or avians, or both, I can't remember... But there was something before the chicken, it had an egg, but there was a genetic mutation in the genes of the baby chick due to adaptation or just accident. Anyways, when the mutated chick hatched from the egg, the chicken as we know it came about.
98736
Chimpanzee babies fuss. Sea gull chicks squawk. Burying beetle larvae tap their parents' legs. Throughout the animal kingdom, babies know how to get their parents' attention. Exactly why evolution has produced all this fussing, squawking and tapping is a question many biologists are trying to answer.
341330
Parrots ARE smarter than doves, but you're right about the muscles being the deciding factor rather than the brain. Given the sounds I've heard coming from both, parrots have more "agile" syrinxes than doves.
672312
My guess: chickens evolved from animals who breed via eggs, so eggs were first. Like there was one animal similiar to a chicken, that one day dropped an egg, and out of the egg came the first chicken. Or something like that...
156281
Take him to your local brid bander...a professor of ornithology at your local college... he will blow on the feathers just above the anus in an upward direction, this patch of skin will have variations based on sex.  A female will have a more fatty patch of padding in this area.  A brood patch.
505527
I think recently they discovered they had Feathers
935305
they have hair, are chordates, mammary glands, produce live offspring
973157
Lots. Recently there are several theropod fossils with feathers discovered in a fine-grained Chinese deposit, things like Sinosauropteryx, Caudipteryx and Beipiaosaurus (look them up on wikipedia). These are younger than the famous Archeopteryx, which has a reptilian skull, teeth, digits, claws, vertebrae, sternum, ribs, pelvis and tail, and a few bird traits like a wishbone, wings and feathers. However, older theropods and Archeopteryx have many similar skeletal features and the feathered therapods add further support to the relationship. In younger sediments than Archeopteryx, there are several fossil species with more birds-like traits, such as Sinornis and Shenzhouraptor and dozens more (wikipedia "fossil birds").
387089
they have wings, feathers, beaks and all the simalarites a bird has except flying
270594
Well both have feathers.. feathers have many oiles in them which keep water away from the bird. water never comes in contact with the real skin of the bird and with it being warm blooded the bird is able to keep a good body temp.