a bit of info 4 all u out there who dont know much

1) the 4  spawn points are feralas,ashenvale,hinterlands and duskwood

2) 4 dragons are emeriss,lethon,taerar and ysondre

3)its 1week (approx) respawning time

4)the 4 places are the 4 stated above but the actual names of the places are:
a) bough shadow(ashenvale)
b) the twilight grove(duskwood)
c) dream bough/jademir lake(feralas)
d) seradane(the hinterlands)

this is all the info i can give ya good luck all
happy hunting