The NY Times story To-Do List: Wrap Gifts. Have Baby. is particularly topical given that Z's daycare provider will be induced on Friday. She's due next week, but her doctor doesn't want her giving birth on Christmas, when fewer doctors and staff will be around. I thought it was interesting that births spike around (but not on) major holidays and that a statistically significant proportion of babies arrive before the New Year, particularly among those upper income parents who best stand to benefit from an income tax break baby.
There's also a sidebar where you can see how your birthday and your children's birthdays stack up in terms of popularity. Lots of June, July and (most strikingly) September babies. I guess the cold weather and holiday merry-making put couples in a family way.