It would be a good idea to treat them with either Sevin dust or Permethryn for lice/mites as a precaution... bedding and nesting boxes should be treated at the same time as the coop and the Silkies.
As she is very sick it may be worthwhile waiting to treat her for any worm infestation until you have offered treatment for lice/mites... you are unlikely to see mites as they tend to appear at night time when the birds are nesting.
Worms are unlikely to be seen in their poop... if ever you do see worms in poop it will be because they are very heavily infested.
As she is very sick it may be worthwhile waiting to treat her for any worm infestation until you have offered treatment for lice/mites... you are unlikely to see mites as they tend to appear at night time when the birds are nesting.
Worms are unlikely to be seen in their poop... if ever you do see worms in poop it will be because they are very heavily infested.