In December, while the northern hemisphere is experiencing a cold and dark winter, Africa is experiencing a balmy, welcoming summer. The temperature is warm and it is usually sunny, with periodic refreshing rain and cool breezes. Fresh grass has begun to cover Africa’s Serengeti, causing a massive wildlife migration. Predators follow the migrating herds in large numbers. Migrant birds also arrive from far afield, bringing with them a riot of color and melody. Beach vacations