~ Magic ~
No, but actually the AH sorts dragons by age. So finding those is just a matter of searching at the right time. I do AH sweeps for old dragons a few times a day, and sometimes I get lucky.
Searching for G1s is a little harder, since there's no real defining feature about them that sets them apart from other, normal dragons.
I usually search for them in the AH with a somewhat tedious method: I set the three genes to basic, and choose maybe 1 color I want to search for. Rose Primary, or something. Or a specific element, or whatever I'm looking for at the time. And then I sift through aalll the resulting dragons manually.
Newly hatched G1s can only be starter breed or Nocs, so I skip over the ones that aren't. I skip anything with like, same seller for multiple dragons in a row (those are usually users selling a whole clutch of dragons), unless all the flights are different (because a whole nest will have the same element but people usually hatch different element eggs).
I miss any G1 that's been gened or breed changed with this method, but that's the limit, I guess.
I also look at the prices to give me hints about maybe being G1 or not. Hatchlings in the 4-7k range are almost always just normal fodder. 10-14k is also usually unlikely unless it's really ugly, but then who wants to buy an ugly G1 anyway? Once you approach the 15-20k range, that's like starting point for G1s. Right around 40k+ is pretty promising; not nearly as many people put triple basic dragons up for 50k. The higher you go, the likelier it is to be G1.