Datura stramonium is poisonous to people, and Merck's Veterinary Manual says it's dangerous to "All" animals: It is listed here in the last section ("Dangerous season: All seasons"): http://www.merckmanuals.com/vet/toxicology/plants_poisonous_to_animals/range_plants_of_temperate_north_america.html Datura stramonium is widespread in much of the the U.S., and there are also some native Daturas.

HI, I found a book called Bird Tracks & Signs and on Google books you can read parts of it. I think I am going to order a copy. Anyway, one thing I read was that "pileated woodpeckers leave tubes of carpenter ants dipped in white at one end", often found at the base of trees beneath excavations with wood chips on the ground. Counldn't tell from your picture what kind of food this critter had been eating. The tube appearance and white on the end sounded like your picture and a pileated woodpecker seems large enough to make a dropping the size those you found.

Keep water in the traps in the bathroom to prevent sewer gas. If you have peeling paint on the walls, that may well be a sign of moisture inside the walls and wet insulation. Remove the plywood and investigate. If you see signs of mold and mildew, you will need to remove the insulation and disinfect wall cavities and let them dry out. Gutters and downspouts should be clear and carrying water away from the foundation. Inspect the crawl space for standing water. Soil around the home should be sloped away from the foundation to carry water away. You should have adequate foundation ventilation with no dead air spaces and a polyethylene moisture barrier covering the soil. If you have moisture problems, you probably also have termites and/or wood boring insects. You might want to consider getting an exterminator to inspect your home. Most give a free inspection. Mold/mildew can be detrimental to your health, resulting in allergies, headaches, respiratory and other health problems.

Thanks to everyone who have replied with suggestions. I did figure it out and it's all quite embarassing! I read on the internet that sometimes a dead animal smell can sometimes be confused with burning electrical wires. I smelled my daughters light switch in her bathroom and oila! Boy was it strong. There was also an electrical outlet close to the smell in the kitchen so, I called the electrician...But wait, it gets better! Electrician came out. Said it wasn't electrical wires, more like a chemical or hair burning. Took him about 30 minutes, but he figured it out. I had purchased some strong kind of glue to fix my daughter's shoes. The glue was sealed up, but sitting on my counter in the kitchen. My daughter's shoes were in her closet (therefore the smell in the bedroom) and my handyman had used to glue to fix the lightswitch he had cracked in my daughter's bathroom. Threw out the glue, the shoes, and the lightswitch. Mystery solved!