The main deserts of the Americas are:
North America:
Mojave
Great Basin
Chihuahuan
Colorado Plateau (Includes the Painted Desert)
Sonoran (Includes the Colorado Desert)
South America:
Patagonian
Atacama
Sechura
Monte
There are also a number of smaller, insignificant deserts or semi-deserts on both continents.
Squirrels do live in the American deserts.
Two South American deserts are located on the west coast of that continent - the Atacama and the Sechura Deserts. Other deserts are located in the interior or on the Caribbean coast.
No, pampas are South American grasslands, not deserts.No, pampas are South American grasslands, not deserts.
Yes, there are cacti in all the deserts of North and South America.
If by buffalo you mean the American Bison, yes they are still found in small number in some North American Deserts.
The deserts are classified as hot subtropical deserts (Mojave, Sonoran and Chihuahuan) and cold winter deserts (Great Basin and Colorado Plateau).
Maine has no deserts.
Connecticut has no deserts.
Florida has no deserts.
Quebec has no deserts.
There are no deserts in Massachusetts.
Australia has many, many deserts. Its capital is Canberra. Chile has deserts. Its capital is Santiago. Egypt has deserts and its capital is Cairo. Algeria has deserts and its capital is Algiers.