Loki never was on pellets only Rocko was and the pet store dosent sell them anymore and I wouldnt want to have to order them all the time id rather just feed vegetables and grains.This can happen when a bird is on a seed diet and doesn't have variety and/or doesn't eat pellets. It can also just be pure curiosity. If it starts happening often, I would consider feeding pellets to your 'tiels again.
Thanks what does that do she was doing it again today.Eating droppings can be a sign of a vitamin deficiency. You can try brewer's yeast to help.
Since Loki and Rocko share the same food dish is it ok for him to eat some too.The article I posted explains it better than I can but it can be a sign of a vitamin B deficiency and sprinkling brewers yeast on her food- I think the article suggests for a week, can help provide the missing vitamins.