We're at university together <a href=" http://goldentabs.com/categories/Woman's-Health/Buy-Cheap-Alesse.html#valve ">spotting before period on alesse</a> For more than 75 years it has supplied protection for whooping cranes in winter. Over the same period a remote sister site in Canada has buffered the birds while they nested. These twin sanctuaries have been the foundation of the species&rsquo; rescue, but the journey towards security has involved constant setbacks. In a sense it is the real journey performed by whoopers between the two sites, a biannual flight of 2,537 miles, that has been problematic. Hunters, power lines, barbed-wire fences, pollution, hostile weather and the natural vagaries of migration have been a constant drain on numbers.