Top tea brand Bird & Blend cuts the ribbon on its Cambridge store this week – with free goodies for the first through the door. . . Known for both its ethical and innovative approach, brilliant British tea company Bird & Blend is coming to Cambridge! Opening its 22nd store on the city’s Green Street – the official ribbon-cutting is on October 30 – shoppers can expect more than 100 teas to choose from, ranging from classic Builders Breakfast Brew to cute Birthday Cake. Plus there’s Cambridge Classics, a store-exclusive blend of three black teas “evocative of the comforting scent of new books; a…