Eumorpha achemon
Reference
http://bugguide.net/node/view/142546
Pandora sphinx moth caterpillar
http://en.wikipedia.org/wiki/Eumorpha_pandorus
Usually brown, but that depends on what it has been eating. Reptile droppings consist generally of feces (usually brown), urates (a white or yellow chalky paste), and liquid urine.
Robins are small birds with a distinctive red or reddish-orange breast. They have a grayish-brown back, white belly, and a relatively long, thin beak. Their eyes are usually dark and they have a white eye ring.
I believe it is a killdeer.
A stoat turns brown with a white belly in spring.
The distinguishing features of a small brown spider with white spots on its back are its small size, brown coloration, and white spots that are visible on its back.
The lizard you found with a blue and white belly could possibly be a blue-bellied lizard, commonly known as a blue-bellied skink. These lizards are native to North America and are known for their bright blue undersides. It's important to consult a reptile expert for a more accurate identification.
The small brown bird with a white stripe on its head is called a White-crowned Sparrow.
It has white right under their necks than brown dots on its belly. The rest of it is mostly brown.
green with white belly with their armored, lizard-like bodies, muscular tails, and powerful jaw
That would be a Leopard Gecko.
The Carolina wren is a brown bird with a white belly.
Wallydaegers have all have stripped tails, the comman is light brown with a white belly, the eastern speckled is black and white