new chooks, ...poo changes....? any ideas?

hello.
day three of chicken keeping...all have learnt to walk up the ladder to the ark's attic with the help of a few grains of feed on each step, so glad as,
 1st night I had to man-handle them to bed, which cause so much squeeeeeling and wing flapping, 1st morning i showed them how to climb down again to the run area
the girls,so in two day and 8 weeks old, they are coop trained....phew..... they arrived on sunday and the fella forgot to bring what he had been feeding them on for me to blend in what I have....so is this why some poo is orange and runny compaired to the dark two toned black/white poo i have been finding also .....I have watched and Im sure just two of them are dropping the orange/brown stuff...occasionally
hear soon
 

Found it!!
http://chat.allotment-garden.org/index.php?topic=17568.0
Hope that helps.