It has almost become the ruling paradigm that reptiles (dinosaurs, that is) evolved into birds -- in fact that birds are really merely highly evolved dinosaurs, flitting about and singing sweet dinosaur songs.
There are about a zillion reasons why this is a fantasy; and one, illustrated by our photos, is the difference between scales (here shown on a representative reptile -- couldn't seem to find a dinosaur to photograph) and bird feathers (here illustrated by the flank of a cooperative Canada Goose and a somewhat less cooperative Chickadee). I invite you to click on the photos (especially the bird photos) to see at least the superficial details of what makes feathers so special.
The story goes that scales somehow evolved into feathers -- that somehow scales became frayed and became feathers. This story is ridiculous at every level. The vast difference in complexity between the two types of structure should prove the obvious. While scales are formed as mere skin folds (which the snake in the photograph will periodically shed as one piece), feathers originate from follicles whose complexity is difficult to imagine -- with the ability to generate feathers whose complexity is even more difficult to imagine.
And what about those "feathered" dinosaurs dug up in China? They have generated as much controversity among ardent evolutionists as they have between evolutionists and creationists -- and not a small number of out-and-out fraudulent claims.
Of course, the scales vs. feathers difference between reptiles and birds is but one of the multitudinous reasons that the two life forms are of different created kinds. Believing otherwise is a matter of pure darwinian faith and has little to do with real scientific evidence.
If you've been drinking the darwinian Koolaid, it's time to switch from that unhealthful sugar water and start taking big gulps from God's inerrant communication to man -- starting from Genesis 1. Good reading!
Of course, listening to this 15-minute clip might be of value as well: http://www.youtube.com/watch?v=WCiVaiv0HN0
Soli Deo Gloria