Northwest Airlines, for example, currently requires a note from a physician if a woman seeks to fly within one month of the due date. At the time Heilman flew, 34 weeks was the cutoff. Her daughter Katie, now 4, was delivered 400 miles from home by Caesarean section.
1 This may happen because the birds use their beak to probe for food in muddy wetland soil.  Most sandhill cranes live in freshwater wetlands, feeding on plants, grains, mice, snakes, insects, and worms. Sandhill cranes usually nest in wetlands and create a structure from whatever plants may be at hand. Females typically lay two eggs, which both parents incubate.
There are six subspecies of sandhill cranes; three migrate, three do not. The lesser sandhill crane is the most numerous subspecies and the most common crane in the Platte River area. In fact, 80-90 percent of the worldâs population migrates through the region.andhill cranes do not reach sexual maturity until they are 3 to 5 years old; in the wild they can live to be more than 25 years old. Once on their nesting grounds, the pair builds a ground nest and the female lays two eggs.