Screenshots taken from BBC 32K version using the Extra Colours Loader modification

contrasted with the smaller, modified levels from the Acorn Atom version.

Two of the earliest rounds, levels 1-8 and 17-24, do not contain all the hens - those that are in place from the start are coloured magenta (Atom: orange) in these screenshots. The additional hens, coloured cyan (Atom: magenta) here, are introduced from level 25.
Level 25
Level 26
Level 27
Level 28
Level 29
Level 30
Level 31
Level 32