Expressive language disorder is characterized by a child having difficulty expressing him- or herself using speech. The signs and symptoms vary drastically from child to child. The child does not have problems with the pronunciation of words, as occurs in phonological disorder .
You can usually determine the type of rodent by the size of the feces. Mice feces will be no larger than a grain of rice. If you are looking at pellet-sized stool, chances are you have a rat or a squirrel on your hands. The difference between squirrel and rat poop can have a lot to do with shape and color. Because of their limited diets, squirrel droppings are usually lighter in color and have a wrinkled appearance. Rats will eat almost anything, and their fecal matter is often dark and oblong in shape. Depending on the species of rat, the droppings ends may be rounded or pointed.
The Cotton Rat (Sigmodon hispidus), found in the southeastern US and down into Central and South America, has a bigger body than the deer mouse. The head and body measure approximately 5 - 7 inches (12.5cm - 18cm), with another 3 - 4 inches (7.5cm - 10cm) for the tail.iew a map showing where cotton rats live in North America. The Rice Rat (Oryzomys palustris) is slightly smaller than the cotton rat, with a 5 - 6 inch (7.5cm - 15cm) head and a very long 4 - 7 inch (10cm - 18cm) tail. It has short, soft, grayish-brown fur on top, and gray or tawny underbellies.