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White-tailed deer vision: the science and the numbers

Odocoileus virginianus · order Artiodactyla · Mammals: all the numbers

Deer have 2 colour receptor classes (457 and 537 nm): mainly blues and yellows; reds and greens look alike.[1] Their activity pattern is cathemeral.[12][13][14][1][15][16][17][18]

See it on your photoBack to How do deer see?
  • 2colour receptor classesMeasured

The white-tailed deer (Odocoileus virginianus) is a mammal in the order Artiodactyla. Its eyes belong to the vision type Grazing ungulate panorama: two cone types, a horizontal band of sharp vision and a near-panoramic field with a blind area behind the head. Measured in this species: colour and night vision. Measured colour or sharpness: a measured receptor set or acuity in this species; other dials come from relatives or group defaults.

This is a simulation built from published eye measurements, not what the animal experiences.

Method: How we know what animals see (the See Like Animals vision engine) · Sources · Last updated . Every value below carries its evidence level and sources; nothing is typed by hand.

What deer see: colour receptors

White-tailed deer colour receptor peaks, 300 to 700 nmWhite-tailed deer: 2 receptor peaks at 457, 537 nm; you: 3 at 421.5, 532, 558.4 nm. ultraviolet300400500600700
White-tailed deer: 457, 537 nmPeople: 421.5, 532, 558.4 nmWavelength in nanometres

Can deer see blaze orange?

Deer have 2 colour receptor classes (457 nm and 537 nm). Orange and green both fall mostly on the longer one, so blaze orange is not a vivid, separate colour to a deer: it looks close to the green and brown around it, and it shows mainly through its brightness.[1]

Why do tigers look green to deer?

With only 457 nm and 537 nm receptors, orange fur and green leaves give a deer's eye similar signals, so an orange tiger blends into green plants for it.[1]

What stands out

  • It has two colour receptor classes (a dichromat): reds and greens fall on one axis, as in red-green colour blindness in people.
  • Activity pattern: cathemeral.

The six dials

Evidence levels: how the tiers work. "Measured" means a value measured in this species; "Estimated" values come from a close relative or an eye-size formula. The last column gives the values for people from the same catalogue.

Vision values for the white-tailed deer (Odocoileus virginianus), catalogue-v1
DialValueEvidenceSourcesPeople
ColourColour receptors
2 receptor classes: 457 nm (SWS (blue)), 537 nm (MWS (green))
measured in this species
Measured[1]Colour receptors: 3 receptor classes: 421.5 nm (VS/SWS (violet)), 532 nm (MWS (green)), 558.4 nm (LWS (long)) Measured (not re-verified)[1][2][3][4]
SharpnessAcuity
18.48 cycles per degree
median of 1 relatives in family Cervidae: Dama dama
Estimated[5]Acuity: 63.75 cycles per degree Measured[6][5]
Field of viewBinocular overlap
45°
median of 4 relatives in order Artiodactyla: Ovis aries, Bos taurus, Capra hircus, Sus scrofa
Group default[7][8]Binocular overlap: 122.5° Measured[7][8]
Total field of view: 200° Measured (not re-verified)[9]
Blind area behind the head: 160° Derived[9]
Eye placement: frontal Derived[7][8]
Total field of view
350°
group default: median total field of vision type the "Grazing ungulate panorama" type within phylum Chordata in species-v1: Equus caballus
Group default[10]
Sharp zones (foveas)Number of foveas
0
median of 9 relatives in order Artiodactyla: Bos taurus, Bubalus bubalis, Capra hircus, Ovis aries, Camelus dromedarius, Vicugna pacos
Group default[11]Number of foveas: 1 Measured[11]
Fovea type: fovea Measured[11]
Fovea type
anakatabatic area, area centralis, horizontal streak		Group default[11]
Night visionActivity pattern
cathemeral
mode of 7 rows (of 8 rows): cathemeral; cathemeral (polyphasic); crepuscular; mesopic; mixed (nocturnal/crepuscular, cathemeral, crepuscular or diurnal/crepuscular); nocturnal/crepuscular
Measured (not re-verified)[12][13][14][1][15][16][17][18]Activity pattern: diurnal Measured (not re-verified)[19][13][14][1][15][16][17][18]
Pupil shape: vertical Group default[12][20]
Reflective layer (tapetum): no Measured[21]
Rods vs cones: cone-dominated Derived[19][13][14][1][15][16][17][18]
Rods vs cones
mixed
nocturnal -> rod-dominated; crepuscular / cathemeral / mixed -> mixed; diurnal -> cone-dominated
Derived[12][13][14][1][15][16][17][18]
Motion (flicker fusion)Flicker fusion frequency
60 Hz
median of 2 relatives in order Artiodactyla: Ovis aries, Sus scrofa
Group default[22]Flicker fusion frequency: 60 Hz Measured[23][24]

All mammals side by side: Mammals: every measurement. Method: how we know what animals see.

Sources

  1. Longcore 2023
  2. Kirwan
  3. Müller et al. 2009
  4. Thermal Activation and Photoactivation of Visual… 2004
  5. Veilleux et al. 2014
  6. Kirk et al. 2004
  7. Heesy 2004
  8. Heffner et al. 1992
  9. Campbell & Green 1965
  10. Timney & Keil 1992
  11. Kopania et al. 2025
  12. Banks et al. 2015
  13. Borges et al. 2018
  14. Wilman et al. 2014
  15. Maor et al. 2017
  16. Jones et al. 2009
  17. Schmitz et al. 2011
  18. Moura et al. 2024
  19. Anderson et al. 2017
  20. Cervino et al. 2021
  21. Guareschi et al. 2025
  22. Haarlem et al. 2026
  23. Healy et al. 2013
  24. Inger et al. 2014

Every value cites its sources (all sources). Values were extracted from these works and converted (units, medians, derived values); changes are ours, and the listed sources do not endorse this site. Data: catalogue-v1, built 2026-09-29. Accuracy notes: how accurate is this? Method: how we know.