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Fox Squirrel (Sciurus niger rufiventer) in Cottonwood Tree Sciurus niger
(fox squirrel)
Eastern Gray Squirrel (Sciurus carolinensis carolinensis) Head Poking Out of a Tree Sciurus carolinensis
(eastern gray squirrel)
Western Gray Squirrel (Sciurus griseus) Sciurus griseus
(western gray squirrel)
Western Gray Squirrel (Sciurus griseus) Tamiasciurus hudsonicus
(American red squirrel)
Douglas' squirrel (Tamiasciurus douglasii) Tamiasciurus douglasii
(Douglas' squirrel)
Least Chipmunk (Tamias minimus) Tamias minimus
(Least Chipmunk)
Urocitellus richardsonii
(Richardson's ground squirrel)
Spermophilus richardsonii (Richardson's Ground Squirrel) Urocitellus parryii
(Arctic ground squirrel)
Otospermophilus beecheyi (California ground squirrel) Otospermophilus beecheyi
(California ground squirrel)
Spermophilus richardsonii (Richardson's Ground Squirrel) Spermophilus tridecemlineatus
(thirteen-lined ground squirrel)
Fox Squirrel (Sciurus niger rufiventer) in Cottonwood Tree Cynomys ludovicianus
(black-tailed prairie dog)
Marmota flaviventris (Yellow-bellied Marmot) Marmota flaviventris
(yellow-bellied marmot)
Sciurus niger
(fox squirrel)
Index

Fox Squirrel (Sciurus niger rufiventer) in Cottonwood Tree Identifying Characterists
Taxonomy
Range
Characteristic Chart


Signs
 Prints
 Prints - Stride Length
 Erbation
 Dreys
 Tree Markings
 Object Relocation
Fox Squirrel (Sciurus niger rufiventer) by Willow Tree Fossil Record
Fox Squirrel (Sciurus niger rufiventer) Close Up Physiology
 Winter Pelage
 Vibrissae
 Olfactory Sense
 Vision
  Diurnal Adaptation
 Tail Overview
 Tail Truncated
 Fall Related Fractures
Sciurus niger rufiventer (Fox Squirrel) Skul Physiology
 Skeleton
  Skull
 Internal
   Eye
Fox Squirrel (Sciurus niger) with Corn Ecology
 Habitat
  
Tree Cavities
  Drey Materials
  Maternal Drey
  Economic Damage
  Bark Stripping
 Plant Defenses
  Black Walnut
Scatterhoarding
  Black Walnut
Fox Squirrel (Sciurus niger rufiventer) Licking Sugar Maple (Acer saccharum) Sap Ecology
 Diet
  Scotch Pine
  Colorado Blue Spruce
  Honey Locust
  Black Walnut
  Sugar Maple Sap
  Crab Apples
  Corn Cob
  Snow
  Ice

Dieases and Parasites
Sciurus niger rufiventer (Fox Squirrel) Male Searching for Female Reproduction
 Mating Chase
  Confused Male
 Pregnancy
Sciurus niger rufiventer (Fox Squirrel) Pair Looking at Eachother Behavior
 Communication
  Communication Overview
 Winter Weather
 Winter Fasting
 Snow Plow
 Foraging Technique
 Gallop
 Curiosity
 Parallax
 Social Grooming
 Identification Kiss
Fox Squirrels (Sciurus niger rufiventer) Pair Play-mounting Behavior
 Play Behavior
  Overview
  Object Play
  Social Play Initiation
  Social Play Mounting