I haven't heard that one. Wasn't there a set of twins born a day or so after BO, at the hospital where he claims to have been born? If so, there must have been a maternity ward there.
I was born at home, and it had no maternity ward. In fact, most people of my generation were born at home also. Hospitals were where you went to die.
There is witness accounts and news stories in Kenya.
Some of those "witness accounts" are either hoaxes or random opinions of people who weren't there.
Kenyan "news stories" -- what are they, recent newspaper articles saying that he was born in Kenya without citing any evidence? -- don't count as much as the birth announcement in the Honolulu papers at the time of his birth.
BTW how was he born in a hospital that did not have a maternity ward until several years after his alleged birth date?
Which hospital? Kapiolani was formed from a merger of two hospitals, and you can bet at least one of them had a maternity ward, maybe the one called Kapiolani Maternity & Gynecological Hospital.
For all I know there probably is something wrong or deceptive in the circumstances of Obama's birth or conception, but still, the odds are that he wasn't born in Kenya.