Body lice? What do those look like?
-Kathy
Lice can be the flat, roundish, straw colored type that move somewhat quickly and live predominately at the vent, commonly called poultry lice. There is also, to my understanding and recent experience, a type that is elongated, brown/grey, and very fast moving over the whole body and termed as "body lice." In trying to figure out what parasites my birds were being plagued with, I've learned there are over 40 species of lice that can inhabit a chicken
All lice are chewing insects that feed on either skin cells, feather shafts, or even blood that rises with the irritation of chewing on the skin. Different lice types will live on different parts of the body, but all tend to move faster.
If it moves slow, chances are it is a mite; if it moves fast, chances are it is a louse (lice). If it moves very fast, chances are it is a certain type of "body lice."
There is a lot of conflicting reports (enough to make you crazy), but Ivermectin seems to be most effective on the lice types and mites that chew on the skin to feed or eat or suck blood as opposed to simply eating the feathers and dander. (It is also cheap as cattle pour on, easy to apply, and readily available in my area...all pluses for choice for me)
I'm not sure what kind I had as they were present on the bird during the day and night, small, cigar shaped, grey/brown, very fast moving through the body (chest and vent and legs), and exploding at an alarming rate...didn't look like a mite and wasn't the straw poultry louse. Poultry dust was slowing the population somewhat, but not eradicating. Not wanting to get behind a growing problem, nor certain if lice or mite, I hit it with Ivermectin which made a noticeable difference after first application, eradication after additional...safety assured with final third. A month later, and recheck shows no signs. Poultry dust, both permethrin and sevin, was supplied to bedding and coops, with a good repellent spray on wood...although no evidence was ever seen in the coop itself even on night close inspection...so fairly certain a body lice or mite.
After the fact, I learned a number of other poultry owners in my area also battled with a very unusual body pest this summer, attributed to the long hot summer with much drier conditions than normal.
What I've experienced.
LofMc
http://www.aces.edu/pubs/docs/A/ANR-0483/ANR-0483.pdf
http://parasitipedia.net/index.php?option=com_content&view=article&id=2402&Itemid=2667