Red-tailed Hawk
Buteo jamaicensis
Explore the complete life journey from birth to maximum documented longevity. Move the interactive age slider below to see real-time biometric growth ranges, developmental milestones, metabolic changes, and ontogenetic stages.

Interactive Lifespan & Growth Scrubber
Drag the slider or click any milestone step to observe dynamic biometrics and physiological changes.
Shredded vole and rodent meat.
Nest-bound; chirps for food.
Taxon-Specific Life Stage Machine
How Red-tailed Hawk progresses through distinct morphological phases.
Eyas / Downy Nestling
Hatches in high cliff or tree crown nest. Both parents hunt mice and snakes to feed hungry brood.
- β’First down replaced by dense secondary thermal down
- β’Talon sheath keratinization
- β’Rapid binocular eye development
Immature Brown-Tail (Year 1)
Brown banded tail (lacks red tail). Wanders open fields practicing thermal soaring and perch-hunting.
- β’Juvenile flight feathers longer than adult feathers to assist early lift
- β’Brown striped tail plumage
- β’Iris turns from gray to amber
Adult Brick-Red Tail
Iconic brick-red tail feathers, piercing raspy scream, and master thermal dynamic soaring ability.
- β’Brick-red tail retrices molt in at second autumn
- β’Dark brown iris and yellow cere
- β’1.4-meter soaring broad wings
Growth Timeline Reference Matrix
Standardized peer-reviewed biometric development data.
| Age Milestone | Life Stage | Length Range | Body Mass Range | Maturity | Dietary Regime |
|---|---|---|---|---|---|
| π£Hatch (Day 0) | Newborn Eyas | 8β12 cm | 50β65 g | 0% | Shredded vole and rodent meat. |
| π¦ 6 Weeks (Fledging) | Fledgling Hawk | 110β135 cm | 950β1350 g | 10% | Whole mice, rats, snakes, lizards. |
| π2+ Years (Adult Red Tail) | Prime Red-tailed Adult | 120β145 cm | 1000β1500 g | 100% | Cottontails, squirrels, voles, rattlesnakes. |
Key Milestones in the Life of a Red-tailed Hawk
Fledging
Leaves aerie on first soaring flight ride on wind thermals.
Red Tail Molt
Sheds striped juvenile tail for brilliant red adult feathers.
Frequently Asked Questions About Red-tailed Hawk Life History
Scientific answers to high-intent queries regarding lifespan and growth.