Well, that may still be true, but consider the following from the BBC today:
Let's assume for a moment that this is true, and neither a prank nor a misunderstanding. What seems to have happened is that the egg was retained inside the mother's reproductive tract. This (technically called dystocia) happens occasionally, especially to older hens. The egg just gets stuck, and usually eventually breaks and comes out in pieces, which can often kill the mother, and which also smells terrible, as the egg is usually quite rotten. But in this case it appears that the retained egg developed successfully, and the mother wasn't killed until the chick was viable. So assuming this is true, it is the first example of live birth in a bird I can find.
'Eggless' chick laid by hen in Sri LankaInstead of passing out of the hen's body and being incubated outside, the egg was incubated in the hen for 21 days and then hatched inside the hen.
The chick is fully formed and healthy, although the mother has died.
Now before all you penguins trade in your carefully maintained rock scrapes and hole-nests for shrines to the fertility god, keep in mind the following:
1. The mother died, probably quite painfully, and therefore is not around to feed the chick.
2. It would be hard for a trait like that to spread through a population, as each mother could produce only one offspring, and sexually reproducing mothers need to produce at least two adult offspring to reach replacement.
3. It probably isn't true anyway.
Still, it is an interesting story. If a group of birds could for some other reason first evolve to have un-calcified eggs, then it seems more likely that live birth would have a chance of evolving.