How Long For Hummingbird Eggs To Hatch. The answer is because the female hummingbird will not start incubating the eggs until both of them have been laid. I did find a dead one in the grass near the location of the nest, but i can't be sure if that's her because i get so many in my backyard.if she isn't back tomorrow i'm taking the eggs out and plan on hatching them myself.
Most of the time, the mama bird warms her eggs by sitting on them while the papa bird provides food for her. The eggs hatch in approximately the same time sequence as they were laid. If they do happen to hatch at the same time, this means that incubation did not start until the second egg was laid.
Both eggs will hatch together, even though they are not laid at the same time.
During all this time, the mother sits atop the eggs all day long, leaving them only for about 5 minutes per hour. She typically lays one egg, skips a day, and then lays a second; The mother has been gone for 3 1/2 days now and i haven't seen her come back at all. The length of time it takes for eggs to hatch after incubation begins depends on the species and temperatures.