Duck may be sick! Help!?

[duckychick]

I've got an Indian Runner, about 5 weeks old I believe. I'm getting a little worried...she has been laying a lot and when she stands up, and stays like that for a few seconds her legs begin to shake then she just lays back down. Her eyes don't look 100% like the others. She eats and drinks fine, but doesn't as much as the others. They kind of step on her and so she just goes to the corner. Any ideas what could be going on?

 

[Amiga]

She sounds like one of these things may be going on

internal infection
B vitamin deficiency
has ingested something toxic (including metal).

A good duck vet is always best. In the meantime, things you can do right away:

Start putting a tablespoon of brewer's yeast (not baking yeast, not winemaking yeast) in each cup of their food daily.
Get a good poultry vitamin, add to their water once a week.
At night, put a teaspoon of food grade activated charcoal powder per pint of drinking water for her (it won't harm the others). Charcoal absorbs toxins.

Keep watching - if she does not improve in a few days with the above, she may well have an infection and need antibiotics. So start looking at where you will be able to find them and how you will administer them.