Original: The castle is frequently known as HakurojÅ ( '' White Egret Castle '' ) or ShirasagijÅ ( '' White Heron Castle '' ) because of its brilliant white exterior and supposed resemblance to a bird taking flight .
Simplified: It is sometimes known as HakurojÅ or ShirasagijÅ ( '' White Heron Castle '' ) because of its brilliant white exterior .