Birdcage is heavenly strong cocktail at 1.3 standard drinks. Built with 30ml gin london no1 and 15ml curacao blue iseo with 45ml tonic soda as well as 100ml ice and good with afternoon tea. Just place the ice into glass then add in the gin and pour in the blue curacao. Add in the tonice water and garnish with lemon peel and served in a old fashioned glass cold.