In Calendar on my wife's iPhone, birthdays don't show. The birthday calendar is active however. On my wife's iPad, birthdays do show. I checked and compared the settings three times now, but I can't figure out why birthdays don't show. On my own iPhone and iPad (and iMac) birthdays are shown. - we sync contacts through iCloud - my wife syncs her own calendar through iCloud and so do I - my wife has an iPhone 5s and an iPad 2 - I have an iPhone 5s and an iPad Air 2 Am I overlooking something?