I belive that Archaeopteryx is a bird and it has nothing to do with transitional form. Below is a brief info about this subject:
ARCHÆOPTERYX AND OTHER ANCIENT BIRD FOSSILS
While evolutionists have for decades been proclaiming Archæopteryx to be the greatest evidence for their scenario concerning the evolution of birds, some recently-found fossils invalidate that scenario in other respects.
Lianhai Hou and Zhonghe Zhou, two paleontologists at the Chinese Institute of Vertebrate Paleontology, discovered a new bird fossil in 1995, and named it Confuciusornis. This fossil is almost the same age as Archæopteryx (around 140 million years), but has no teeth in its mouth. In addition, its beak and feathers shared the same features as today's birds. Confuciusornis has the same skeletal structure as modern birds, but also has claws on its wings, just like Archæopteryx. Another structure peculiar to birds called the "pygostyle", which supports the tail feathers, was also found in Confuciusornis. In short, this fossil-which is the same age as Archæopteryx, which was previously thought to be the earliest bird and was accepted as a semi-reptile-looks very much like a modern bird. This fact has invalidated all the evolutionist theses claiming Archæopteryx to be the primitive ancestor of all birds.
Another fossil unearthed in China, caused even greater confusion. In November 1996, the existence of a 130-million-year-old bird named Liaoningornis was announced in Science by L. Hou, L. D. Martin, and Alan Feduccia. Liaoningornis had a breastbone to which the muscles for flight were attached, just as in modern birds. This bird was indistinguishable from modern birds also in other respects, too. The only difference was the teeth in its mouth. This showed that birds with teeth did not possess the primitive structure alleged by evolutionists. This was stated in an article in Discover "Whence came the birds? This fossil suggests that it was not from dinasour stock".
Another fossil that refuted the evolutionist claims regarding Archæopteryx was Eoalulavis. The wing structure of Eoalulavis, which was said to be some 25 to 30 million years younger than Archæopteryx, was also observed in modern slow-flying birds. This proved that 120 million years ago, there were birds indistinguishable from modern birds in many respects flying in the skies.
These facts once more indicate for certain that neither Archæopteryx nor other ancient birds similar to it were transitional forms. The fossils do not indicate that different bird species evolved from each other. On the contrary, the fossil record proves that today's modern birds and some archaic birds such as Archæopteryx actually lived together at the same time. It is true that some of these bird species, such as Archæopteryx and Confuciusornis, have become extinct, but the fact that only some of the species that once existed have been able to survive down to the present day does not in itself support the theory of evolution.
In brief, several features of Archæopteryx indicate that this creature was not a transitional form. The overall anatomy of Archæopteryx imply stasis, not evolution. Paleontologist Robert Carroll has to admit that:
The geometry of the flight feathers of Archaeopteryx is identical with that of modern flying birds, whereas nonflying birds have symmetrical feathers. The way in which the feathers are arranged on the wing also falls within the range of modern birds… According to Van Tyne and Berger, the relative size and shape of the wing of Archaeopteryx are similar to that of birds that move through restricted openings in vegetation, such as gallinaceous birds, doves, woodcocks, woodpeckers, and most passerine birds… The flight feathers have been in stasis for at least 150 million years…
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