Keep in mind that baby birds poop A LOT. The poop pictured on this photo looks fresh and could be from the last 2-3 hours. Even I dont clean my cages that often.
That said, I always take care to make clean healthy pictures to put online. This seems a bit careless. And about the cigarette lighter, beats me what thats doing there
The rest of the birds do look fine and healthy, just very scared of people. My young birds never fly up the cage like then when I make pictures.