They aren't just pheonix! Meanings and what the pheonix symbolizes.

The pheonix of Chinese legend is a symbol of heaven's favor, virtue and grace, luck and happiness. 

The male pheonix is named 'Feng' and is the yang, solar, fire bird.

The female pheonix is named 'Huang'. It is feminine, yin, and lunar. The feminine aspect denotes beauty, delicacy of feeling, and peace,

The Feng and the Huang together symbolize everlasting love, and as bridal symbol signifies 'inseperable fellowship'. They also symbolizes a duality, the yin and yang, mutual interdependence in the universe.

http://horchang.blogspot.my/2011/03/sze-yah-templekuala-lumpur.html