Black Neck Ostrich & Fertile Eggs

Ostrich is the biggest bird among all the bird species. They also produce the largest eggs. An adult male ostrich weights between 63 to 130 kg and an adult female ostrich weights about 155 kg . Adult male ostrich feathers are black colored,  primary and caudal feathers are white colored. Female and baby ostrich feather can be of gray or white colored. The neck of the both male and female ostrich is almost featherless.