Animal ID
🦉
Great Horned Owl
🦉BirdsOwlsLC - Least Concern
Verified Field Specimen

Native Biome: Forests, deserts, suburbs, open country

Naturalist Field Guide Tip:
Peer-Reviewed
Species ProfileTaxon ID: #GREAT-HORNED-OWL

Great Horned Owl

Bubo virginianus

Named for prominent ear tufts (“horns”).

Linnaean Taxonomic Tree

KingdomAnimalia
PhylumChordata
ClassAves
OrderSee species guide
Genus
Adult Weight

1–1.5 kg

Female: 1.5–2.5 kg
Top Speed

Silent powerful flight

Burst Acceleration
Lifespan (Wild)

10–15 years

Captivity: 20+ years

Compare Look-Alikes

vs Barn Owl

🐣Growth & Lifespan

Birth to old age slider

🔍 Distinctive Diagnostic Markings & Anatomy

Critical morphological field marks naturalists use to verify species identification in the wild.

Pelage, Coat & Coloration

Barred underparts; ear tufts; yellow eyes.

Skull, Dentition & Jaw

Ear tufts; facial disc.

Eyes, Pupils & Facial Discs

Yellow.

Paws, Claws & Ears

Feathered powerful talons.

Tail & Spoor Dynamics

Short

Sexual Dimorphism

Females larger

🍖 Trophic Role & Hunting Strategy

Apex Predator
Predatory Mechanics:

Perch-and-pounce on mammals/birds

Primary Prey Species:
🎯 Rabbits🎯 Rodents🎯 Birds🎯 Even skunks
Daily IntakeLarge prey items
Success RateVaries with conditions

🏕️ Social Behavior & Activity Rhythms

Strictly Nocturnal
Social Organization:

Territorial pairs

Maternal Care & Reproduction:

Biparental

Home RangeAmericas widely
Litter Size1–4 eggs
3-Pillar Ontogenetic Intelligence

Life Cycle, Growth & Lifespan Journey

1. Lifespan Progression BarAvg: 15 yrs • Record: 30 yrs
🐣 Birth (Day 0)🌱 Subadult Weaning👑 Prime Adult🌟 Max Age (30y)
2. Biometric Growth RangesPeer-reviewed estimates
AgeStageLength/HeightWeight
Birth / Hatch / Day 0Nestling79 cm0.0350.05 kg
Early growthNestling18.225.3 cm0.1510.344 kg
Mid juvenileFledgling39.656.6 cm0.3730.908 kg
Late juvenileJuvenile62.890.6 cm0.6141.5 kg
Near maturityAdult86.1125 cm0.8552.1 kg
*Growth values are approximate ranges and vary by sex, habitat, and diet.
3. Ontogenetic Life StagesAvian
🥚
Egg
Laid in takes over other nests.
Incubation
🦉
Nestling
Grows facial disc for powerful talons.
Hatch to branch
🦉
Fledgling
Silent-flight feathers mature.
First flights
👑
Adult
Nocturnal/crepuscular predator.
Years
🌟
Elder
Higher mortality with age in the wild.
Late life
📏

How Big Will a Great Horned Owl Get?

Calculate estimated adult weight, shoulder height, remaining growth timeline, and weekly development rate based on current age and biometrics.

IUCN Red List of Threatened Species

Conservation Status & Population Dynamics

LC - Least ConcernTrend: Stable
Estimated Global Population

Common

Subject to ongoing wildlife telemetry monitoring

Primary Threat Drivers
  • Cars
  • Rodenticides
  • Shootings
Active Conservation Programs
  • Habitat protection
  • Public education
Check current CITES appendices for this taxon
Interconnected Multimodal Graph

Field Intelligence & Diagnostic Hub for Great Horned Owl

Node ID: great-horned-owl
🐾 Footprint & Track SpoorGrade A+

Short

🔊 Bioacoustics & CallsSpectrogram

Audio frequency analysis, territorial roar/call synthesis, and harmonic resonance measurements.

🌳 Native Biome & EcosystemGIS Layer

Ecosystem food web, trophic interactions, and cohabiting species in Americas.

⚖️ Look-Alike Species Differentiation Matrix

Instant one-click comparison tools to prevent common field misidentifications

Great Horned Owl vs. Barn Owl

Key Differentiation

Barn owls lack ear tufts and have dark eyes/heart faces.

How to Identify Great Horned Owl from a Photograph

Standard operating procedures for photographers and field naturalists submitting sightings for verification.

1. Critical Photo Angles
  • 📷Clear side profile
  • 📷Head/face close-up
  • 📷Full body in natural light
2. Key Diagnostic Field Marks
  • 🔍Ear tufts
  • 🔍Yellow eyes
  • 🔍Barred chest
  • 🔍Large size
3. Photographic Pitfalls to Avoid
  • ⚠️Confusing with barn owl
Camera Lighting Advice: Moonlit silhouettes; respect roosts.

Frequently Asked Questions About Great Horned Owl

Verified answers compiled by zoologists, wildlife biologists, and field guides.

The “horns” are feather tufts, not true horns.
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