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.
Sandhill Cranes (Grus canadensis) Species Specifics Cranes are large, long-legged and long-necked birds of the order Gruiformes, and family Gruidae. There are 15 species of cranes in the world, but only two are found in North Americaâthe Sandhill crane and the whooping crane. The whooping crane is essentially all white and is slightly larger