A record of the passionate campaign of 'ordinary people' to oppose the civil engineering scheme to construct a barrage across Cardiff Bay which would destroy the mudflats of the bay, the feeding grounds of protected species of birds.

Cofnod o'r ymgyrch angerddol pobl gyffredin i wrthwynebu'r cynllun peirianneg sifil i adeiladu argae ar draws Bae Caerdydd a fuasai'n dinistrio'r traethellau llaid, tir bwydo i rywogaethau adar dan warchodaeth.