chris, yes, it is highly correlated to when they are fed -- the same as with cows. In my own herd this time (so far -- we are not quite done kidding yet), I religiously feed once a day between 5-6 p.m. I have had 10 does kid so far. Eight of the 10 kidded during daylight hours.
That correlates with cattle studies showing about 80% daytime births to cows fed in the evening hours. See as one such study:
http://www.ansi.okstate.edu/exten/cc...mecalving.html
I would be interested to hear from others. We had a thread on this once, and it pretty much confirmed it.
The benefits to daylight kidding are many. They include less need for intervention because of ease of observation, less predator impact on pasture-kidded goats and kids, less loss of sleep for herder (potentially benefiting the disposition and thus the marriage! LOL), and easier access to professional veterinary help if needed.
All my goats pasture-kid. Upon observation, we then either just leave the kids to her observed excellent caregiving, or get the kids and have mama follow us back to a kidding pen in the barn if we feel she may be a tad overwhelmed. They stay in the pen one day, then are turned out.
In this way, we hope we are teaching and encouraging our does to take care of business in the way that is most akin to Nature, and offers us the least chance to work. Hey, we're lazy, what can I say? LOL.