A lot of things could cause whole seed in poop, 2 causes I have been looking in to is PDD (what my vet says Paulie has) which is not curable
or Giardia (a parasite) which is curable but I have read that it is difficult
defiantly take her to a vet, hopefully you have better luck than I've had
There's more chance of having a parasite than PDD, as she came to me pooping healthily, and started this out of the blue. PDD is more gradual than this.
If she has a parasite, however, all my birds have to be treated for it, as I haven't exactly been changing clothes when I go see her. I have been keeping her quarantined, but not tightly enough....*sobs*
After having read about giardia, I can honestly say she doesn't have ANY of the symptoms other than absorption problems. None of her feathers are plucked, and there's been no screaming or digging at herself. In fact, she's quiet, happy, and aside from pooping whole seeds, looks healthy.
PDD is now sounding less likely as she doesn't regurgitate, isn't lethargic or depressed, isn't weak, and doesn't lack appetite. She does sleep a lot, but wouldn't anyone who's pooping out most of their seeds?
I really, really hope this means she ate something bad, will be sick for a little while, and then will eventually turn all her poop, (which is less liquid and more solid now, with the presence of all three healthy "parts"), back to normal.
The problem is, you don't really have any way of knowing what's wrong without taking her to a vet.
A problem that might seem as though it will pass, might be something more serious.
Or it may be a problem that will lead to more serious problems over time.
As someone else said, passing whole seeds is never a good sign. If it is a bacteria infection, your bird may not be able to fight it off on her own.
Take her to a vet. At the very least, it will ease your mind. At the most, it will save Elizabeth's life.
Undigested food. If you notice any bits of seed or pellets, be worried. These symptoms could mean parasites, an intestinal infection, proventricular dilation, or a disease of the pancreas or other internal organs.
The first thing I thought of when I read you post was a bacterial infection but an avian vet would be able to do tests and tell you for sure what it is and get your tiel the proper medicine. Please don't wait until your tiel is acting ill, as birds hide that they are sick for as long as possible.