Mother mallard
There is a mother mallard duck that has nested in my front yard in a flower garden. She's laid nine eggs. With the documented 28 day incubation (http://en.wikipedia.org/wiki/Mallard#Breeding_behaviour), I'm expecting some of them to start hatching in mid to later April. Does anyone know how long it takes a clutch of eggs to hatch? That is, how long from the time the first chick emerges until the last chick emerges? If possible I'd like to get some pictures of this, but I'm guessing the window will be short, and perhaps at night.