Scientifically regarded this is wrong, because birds (Avialae) belong to the dinosaurs and so dinosaurs didn't die out.
Sorry. I should have said non-avian dinosaurs.
That is a load of bull and I can't believe you believe in that stuff. The earth is like five point five billion years old or older. And the dinosaurs where around sixty five million years ago. And some scientist's found dinosaur fossils. So the Earth is billions of years old.
I'm not surprised they believe that stuff. I've heard some creationists believe even more bizarre stuff, such as a drop of rain can be stretched to cover an entire planet, the ice caps came because a fast moving comet "gently" landed on both ends, oh and froze the mammoths, and if you lock a chameleon in an airtight room, it'll grow up to be a triceratops.

:
It's pretty much pointless to try to argue with creationists because they seem to pretend to not hear you, or try to say it's not enough, etc. Even if they were provided with strong evidence that proves something (such as the age of the earth or the dinosaurs living millions of years ago), they would dismiss it and make some kind of remark trying to counter the claim, even if this remark is insane and makes no sense. Or they'll even just run away, as I've seen this happen in the past. They just stop talking. Oh and then they'll block anyone who argues against them (on Youtube). How mature.
And yes, I'm aware not all creationists are like this. I'm simply referring to the ones that are.
One interesting thing I should point out is, according to what I've heard, there are a lot of scientists who do believe in a god or some kind of creator, but also in evolution. In fact, creationism (the idea that everything just appeared out of nowhere, fully formed, and the earth is only a few thousand years old), is considered outdated by most religions and pretty much given the boot (including, interestingly enough, Christianity, though there are still some creationist Christians out there, obviously). Most religions now accept evolution as a way that their creator allows species to adapt to their environment.
I do have respect for rationalists (yes that is what they're called; that's the name given to people who use real evidence to figure stuff out about their world, not a bible) like that. Yes it is possible for one to be religious and scientific. It's possible to believe in a god, but also be scientific. After all, proof of a creator doesn't negate evolution.
In fact, evolution cannot, in anyway, interfere with the existence of a creator as it has nothing to do with the origin of life; just how it changed over time. I'm aware that some creationists try to say otherwise, but creationists have made up a lot of stuff about evolution (either due to spite or misunderstanding).
For instance, I heard stuff like "if evolution were true, we'd see crocoducks", "evolution says our grandmother was a monkey", etc. Such claims pretty much just prove how little they truly understand evolution and prove they are not fit to debate it. Any amount of researching evolution would show these two accusations I showed (plus others I've heard) are wrong.