Just to clarify, F1 and F2 does not mean which breeding or which order an egg is laid, all wild birds from the first egg to the last in it's life are first generation, the parents are still wild no matter how many eggs are laid. The designation tells how far away an individuals genes are from a wild bird, that is why as soon as it is bred to a bird that was not from an F generation bloodline the designation no longer applies, you no longer know when the genes from both parents were wild genes. If these were purchased from a breeder in China and he or she did not give you an F designation they are not from wild birds but as I mentioned that in no way, shape, or form means they are not pure. All it means is possibly a different lineage then ones here in the states but it also means the quality and price could have been obtained from local breeders who are very careful and keep records of the bloodlines they breed.