Flying Squirrels
- Information on the biology and life cycle of the Northern and Southern Flying Squirrels of North America.
- http://www.flyingsquirrels.com/

Flying Squirrels Of The World
- Information on the general biology of the 41 species of flying squirrel found outside North America.
- http://www.flyingsquirrels.com/World/

The Ecology and Behaviour of the Large Brown Flying Squirrel (Petaurista philippensis)
- Abstract of a study on these mammals and the food plants they prefer.
- http://www.wildlife.in/projects/Supported/15/

Marmots of the World
- Comprehensive article on these rodents, the largest ground-dwelling squirrels in the world.
- http://www.napak.com/marmots_of_the_world.html

Sciuridae
- Information from Wikipedia on the classification of the Squirrel family which includes tree squirrels, ground squirrels, chipmunks, marmots and the true flying squirrels.
- http://en.wikipedia.org/wiki/Sciuridae

Woodchuck
- Photograph and information on this species which is also known as the groundhog.
- http://www.holoweb.com/cannon/woodchuc.htm

Ground Squirrels
- Information on three Sonoran Desert species including their distinguishing features, habitat, feeding and life history.
- http://www.desertmuseum.org/books/nhsd_squirrels.php

Belding's Ground Squirrel (Spermophilus beldingi)
- Photograph and information on this species including its description, distribution, habitat, diet, behavior, reproduction and voice.
- http://www.bbc.co.uk/nature/wildfacts/factfiles/606.shtml

Arctic Ground Squirrel (Spermophilus parryii)
- Photograph and information on this species including a description, distribution, habitat, diet, behavior and reproduction.
- http://www.bbc.co.uk/nature/wildfacts/factfiles/3003.shtml

Alpine Marmot (Marmota marmota)
- Photographs and information on this species including a description, distribution, habitat, diet, behavior and reproduction.
- http://www.bbc.co.uk/nature/wildfacts/factfiles/593.shtml

European Squirrel Initiative
- Founded in 2002, this scheme aims to win the support of European governments to secure the future of the red squirrel by controlling the grey squirrel.
- http://www.europeansquirrelinitiative.org/

Southern Flying Squirrel (Glaucomys volans)
- Description, habits, reproduction and wildlife management information for this species, which is native to the deciduous forests of eastern North America, with isolated populations in Mexico and as far south as Honduras.
- http://www.ngpc.state.ne.us/wildlife/flysqu.asp

Sciurus niger, Fox Squirrel
- Mammalian species account from the American Society of Mammalogists. Extensive information on characteristics, distribution, fossil record, habitat, behavior, and other topics.
- http://www.science.smith.edu/departments/Biology/VHAYSSEN/msi/pdf/i0076-3519-479-01-0001.pdf

Black-tailed Prairie Dog - Cynomys ludovicianus
- Description, photos, habitat description, and map of range in North Dakota. From Northern Prairie Wildlife Research Center.
- http://www.npwrc.usgs.gov/resource/mammals/mammals/prairie.htm

Mexican Prairie Dog (Cynomys mexicanus)
- Brief narrative from the Animal Diversity Web.
- http://animaldiversity.ummz.umich.edu/site/accounts/information/Cynomys_mexicanus.html

Arctic Ground Squirrels in Alaska
- Images and information about Spermophilus parryii.
- http://www.turtlepuddle.org/pix/04Aug/Arctic_Ground_Squirrel/AGS.html

Squirrels of Silwood Park
- An e-book on grey squirrel behaviour and ecology in woodlands in near Ascot, England.
- http://www.jmtaylor.bigpondhosting.com/Squirrels/

Flying Squirrel Central
- Links to fact sheets, kids pages, and images.
- http://www.isidore-of-seville.com/flyingsquirrel/

International Marmot Network
- Information on the animals of genus Marmota (marmots, woodchucks) worldwide.
- http://cons-dev.univ-lyon1.fr/MARMOTTE/MARMOT.EN/marmotnetwork.html

Prairie Dog Patch
- A grass roots effort to preserve prairie dog habitat in Hastings, Nebraska.
- http://www.pdpatch.com/

Delmarva Fox Squirrel Habitat Study
- This site highlights student research and links involving the endangered Delmarva Fox Squirrel.
- http://www.qacps.k12.md.us/cms/sci/PROJABW.HTM

Underdogs: Prairie Dogs at Home Underground
- National Geographic presents this rich site full of sounds and pictures, where you can learn about prairie dogs and explore a typical burrow.
- http://www.nationalgeographic.com/features/98/burrow/

Chipmunks
- Brief information on Tamias minimus.
- http://www.chipmunks-chipmunks.com

Richardson's Ground Squirrels
- A complete reference of the behavior, physiology, and natural history of Spermophilus richardsonii.
- http://home.uleth.ca/~michener/

The Simple Pleasure of Squirrels
- From the National Zoo comes this article about who squirrels are and how humans have interacted with them.
- http://www.si.edu/natzoo/zooview/animals/squirrel.htm