When a person moves in an environment saturated with wi - fi signals from routers, laptops and mobile phones, that movement creates
a slight change in the frequency of those signals, says lead researcher Shyam Gollakota, a U.W. assistant professor of computer science and engineering.
Depending on diet,
slight variations
in what is a normal amount of droppings for any given bird are to be expected, but any drastic
change in the size or
frequency of your bird's poop should be noted and reported to your veterinarian.