There are two gigantic problems for evolutionites such as our Farmerman here involving birds, which you never see in print.
The first such problem arises from probability theory and combinatorics. Suppose for a moment that you aren't a flying bird, but that you wish to become one: You'll need a baker's dozen highly specialized systems, including wings, flight feathers, the complex system for turning flight feathers open on upstrokes and closed on downstrokes, a specialized light bone structure, specialized flow-through lungs and super efficient heart, specialized tail, specialized general balance parameters etc.
For starters, every one of these things would be anti-functional until the day on which the whole thing came together, so that the chances of evolving any of these things by any process resembling evolution (mutations plus selection) would amount to an infinitessimal, i.e. one divided by some gigantic number.
In probability theory, to compute the probability of two things happening at once, you multiply the probabilities together. That says that the likelihood of all these things ever happening, best case, is ten or twelve such infinitesimals multiplied together, i.e. a tenth or twelth-order infinitesimal. The whole history of the universe isn't long enough for that to happen once.
All of that was the best case. In real life, it's even worse than that. In real life, natural selection could not plausibly select for hoped-for functionality, which is what would be required in order to evolve flight feathers on something which could not fly apriori. In real life, all you'd ever get would some sort of a random walk around some starting point, rather than the unidirectional march towards a future requirement which evolution requires.
And the real killer, i.e. the thing which simply kills evolutionism dead, is the following consideration: In real life, assuming you were to somehow miraculously evolve the first feature you'd need to become a flying bird, then by the time another 10,000 generations rolled around and you evolved the second such reature, the first, having been disfunctional/antifunctional all the while, would have DE-EVOLVED and either disappeared altogether or become vestigial.
A velociraptor could of course simply hatch as a bird with all of the new features required at a stroke, but that would still just be a probabilistic miracle and the same miracle would have to occur twice on the same day, one male, the other female...
The other giant problem arises from a study of chickens. You have noticed that chickens have some sort of very limited flight capability but could not generally be called flying birds. That is because they originated as some sort of a little 1 pound or 1.5 pound jungle fowl and then were bred into a six or eight pound domestic animal, but still have the one pound bird's wings. Geese are as large and heavy as chickens and fly perfectly well because they were created with the wings needed by a bird of their size.
Again, a flying bird needs a dozen or so highly specialized biological systems, the lack of any one of which will cause the whole idea not to work. He needs wings, flight feathers, highly specialized and efficient hearts and lungs which are unlike those of anything else, a highly specialized kind of tail and general balance parameters, etc.
Now, a velociraptor has none of those things, yet the evolution crowd claims that a type of velociraptor, given enough time, basically turned into today's flying birds. Is that possible? The velociraptor-bird wannabe would be working from a miniscule numeric base, and would require numerous probabilistic miracles, along with some government agency like AFDC to feed him during the thousands of generations while he was carrying the incomplete wings and flight feathers and what not around as liabilities rather than assets. Again, they only BECOME assets on the day that the whole deal works.
Consider the kiwi, the auk, the ostrich, the emu, the penguin, and the whole host of flightless birds on the earth not only now, but during the last 50,000 years or so. At least some of these guys have some vestige of the things which the velociraptor would need to become a bird; if the velociraptor's trip to flying-birdhood is viewed as 1000 miles, the kiwi and what not need travel less than a mile.
According to evolutionist doctrine, somewhere within recorded history, some kiwi or emu or other such should have started to fly again, and we should occasionally look overhead and see them. At the very least, the fossil record should show such a thing. It doesn't.
The question: If the kiwi can't make it the last mile, given some sort of a start on all of the necessary organs and biological systems needed to become a flying bird, then how is the velociraptor going to make his 1000-mile journey?
Better yet, man has raised chickens all over the world throughout recorded history, and only for the last 50 years or so in cages. Chickens even have some minimalistic ability to fly, and the numeric base they've had to work from is immense. The numbers of escaped chickens over the last 5000 years or so must be in the billions. If the kiwi has less than a mile to travel to become a flying bird, then the feral chicken has less than a foot. According to all logic, given evolutionist dogma, some group of escaped chickens should have fully regained flight over the last 5000 years, and we should see them up overhead.
The reality is that once you lose any part of a complex trait, it's gone forever, and neither the Easter rabbit nor the Evolution fairy has any power to get it back for you. If you lack some complex trait altogether, such as the case of the velociraptor wishing to become a bird, your only hope will be God, Dr. Moreau, or somebody else with a fairly good idea of what he is about, and a bit of intelligent genetic re-engineering. Mutations and "natural selection" don't cut it in the real world.