What did the band Middle of Road sing?

Middle of the Road was a Scottish pop band originally known as Los Caracas or Sound Five and known best for their song "Chirpy Chirpy Cheep Cheep". They later recorded hits: _Sacramento (A wonderful town)_ , _(I'm) Sad to Belong_ , _Tweedle Dee Tweedle Dum_ & _Knock knock. Who's There ?