The birds who lay Australia's 'cage eggs' will never feel the sun on their feathers, beat their wings, or experience the life that nature intended them to. Instead, each hen is imprisoned in a wire cage with up to four other birds. Her 'living' space is smaller than one A4 sheet of paper—not even enough space to stretch her wings.
People may argue that caged hens provide cheaper eggs but, if this is at the expense of hen welfare then the price of eggs is not properly calculated.