Ok...this will sound stupid but why not? It is still a bird. We have different breeds of dogs breeding together, and they are still dogs. So why not a two breeds of birds, still baby birds in my book...
not something I would think anyone would do on purpose but why would it not be possible....
Dogs are all one species...
Canis lupus familiaris. Dogs breeding together is just like humans of different races procreating - we are all the same species.
Lovebirds and budgies are both in the
Psittaciformes order, but are not in the same family or genus.
Budgie:
Melopsittacus undulatus
Lovebird
: Agapornis (8 species under this genus)
When animals are too distantly related they can't reproduce. Just as we are "closely" related to chimps but we cannot reproduce with them, so are many species of parrot very genetically diverse from one another.
When there are closely related, like conure species, they can create hybrid offspring. Similar to donkeys and horses.
Birds may all seem very similar to each other and thus seem easier to hybridize, but saying "they're all birds" is as accurate as saying "we're all mammals"