Birdman and Chicken was a British comic strip published in Krazy from 1977 until 1978 and drawn by Trevor Metcalfe. It concerned the (mis)adventures of the superhero 'Birdman' and his not-so-bright sidekick 'Chicken', who was nicknamed 'The Boy Blunder'. The title and stories were a parody of Batman.
References
Birdman and Chicken Wikipedia(Text) CC BY-SA