The extreme conditions birds must face, some created by nature and some by man.
Birds use different methods to raise their young, from distinct feeding techniques to enlisting the help of others.
How the egg is protected from predators and kept at the correct temperature to ensure hatching.
How bizarre, but often beautiful, mating rituals help attract and keep a mate.
How birds communicate through intricate songs, delicate movements and a vast array of colors.
Birds that catch their dinners in salt water and fresh water, from filter-feeders to fish-eagles.
Carnivorous birds; hunting strategies.
The various means birds use to feed themselves, from unusual beaks to primitive tools.
Examining the aeronautics behind the grace, speed, endurance and agility of birds of flight.
Flying and flightless species.