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.
Living with Sandhill Cranes. Sandhill cranes are cherished members of the Florida ecosystem. They stand almost 4 feet tall and their bugling or rattling calls are haunting and beautiful. Sandhill cranes occur in pastures, open prairies and freshwater wetlands in peninsular Florida from the Everglades to the Okefenokee Swamp.