The rough-legged buzzard, or rough-legged hawk, is a large predatory bird with fully feathered legs. It lives in cold northern regions, where it hunts rodents from great heights.
The rough-legged buzzard differs from other buzzards with its dense feathers on the legs, which protect from the cold. It is important for nature because it controls the population growth of rodents in the tundra.
Worker
Tail size
birth time
Submerges underwater to reach prey or food at depth.
vertebrates
ambush
Dogs, dolphins, lynx hang out for 9-25 years and party on their birthday three times a year
m
Map
will celebrate their {n} birthday
live mice and small voles
perch
g
lots of rain, warm summer, snow in winter
t
When your next jubilee falls in {name} life years
Human
very cold, short summer, almost no trees, lots of moss
days
Warm summer
How old you would be if you lived as {name}
Theoretical maximum lifespan estimated from the Dynamic Energy Budget (DEB) mathematical model. This value reflects a biological potential derived from metabolic parameters, not from direct observation — real recorded lifespans are often significantly shorter.
adult
Maturity
Melon
invertebrates
About health
cool, lots of coniferous trees, snow in winter
When your next birthday would fall if you lived as {name}
rodents in general — rats, squirrels, ground squirrels
Repro interval
results
land coast flooded by tides — salt marshes, littoral zone
aerial
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
diving
mo
alpine meadows and arctic tundra on land
Trophic type
all living animals without backbone
Filters
Tail count
Palearctic realm
Upcoming birthdays
Breeding structure built or used for laying eggs and raising offspring.
Winter with snow
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
rains almost always, very humid
Age (juvenile)
Age (from birth to death)
Age (embryo)
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Feeding occurs in open air space above ground or water.
Wings size
Jubilee = every 10th birthday
Tundra
Earliest developmental stage inside an egg or womb.
animals with backbone
Business sausages
Lifespan average
young after fast growth
Juvenile stage following larval metamorphosis but not yet adult.
What do they look like?
Maturity
emergence (insects)
end of lifespan
Wings color
How do they live?
fertilization / egg laying
How do they behave?
birth / hatching
metamorphosis / end of larval stage
end of acceleration
Share
Find a pet...
Mature, fully developed individual capable of reproduction.
Actively hunting and capturing live prey.
flight
Pets
Nearctic realm
Feeding occurs primarily on land or in vegetation.
{name} jubilee
cm
Temperate coniferous forest
Old-timers
Find an animal or breed...
Wingspan
turns
Rascals
terrestrial forest
terrestrial intertidal
Tail color
Flooded grasslands
Litter size
Map data sources: Ecosystem classification — IUCN Global Ecosystem Typology (Keith et al., 2022), indicative distribution maps Keith et al. (2020), https://doi.org/10.5281/zenodo.3546513; Large Marine Ecosystems — NOAA LME Program; Bathymetry — GEBCO Bathymetric Compilation Group (2026), GEBCO_2026 Grid, https://doi.org/10.5285/4f68d5c7-45eb-f999-e063-7086abc036fa; Climate data — Generated using Copernicus Climate Change Service information; Species occurrence data — GBIF.org, Derived dataset "all animals", https://zveriki.com/dataset/dataset.tsv; Terrestrial ecoregions — RESOLVE Ecoregions 2017 (Dinerstein et al., 2017), CC BY 4.0
How to care for them?
Living from 25 to 40 years. Orangutans, bald eagles, African elephants celebrate their birthday twice a year
°C
Not specified
alpine and arctic tundra
small birds
Where are they found?
from 0.8 to 1.2 kilograms, 0.6 – 1.2 meters
Talons count
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
small birds — sparrows, tits, hummingbirds
Bro
Taxons
carnivore
if born as {name}
Foraging takes place among trees and woody vegetation.
cold, short summer, almost no trees
Wings count
age
Predator remains still and concealed before launching a sudden attack.
birth date
Palearctic realm
Talons size
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
climbing
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
primary food sources
Beak size
Potential Habitat
d
In husbandry
On the go from 1.3 to 3.5 years. Forest mice, anoles, rainbow fish party on their birthday once a month
Mass
cold winter, lots of coniferous trees: spruce, pine
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
terrestrial
Gestation
vision
{name} birthday
Nearctic realm
No results found
North America and Greenland, from tundra to forests
Feathered legs temp
On the map
lunge
Pleasant summer
Female ♀
all life stages
Down feathers color
Map data sources: Ecosystem classification — IUCN Global Ecosystem Typology (Keith et al., 2022), indicative distribution maps Keith et al. (2020), https://doi.org/10.5281/zenodo.3546513; Large Marine Ecosystems — NOAA LME Program; Bathymetry — GEBCO Bathymetric Compilation Group (2026), GEBCO_2026 Grid, https://doi.org/10.5285/4f68d5c7-45eb-f999-e063-7086abc036fa; Climate data — Generated using Copernicus Climate Change Service information; Species occurrence data — GBIF.org, Derived dataset "all animals", https://zveriki.com/dataset/dataset.tsv; Terrestrial ecoregions — RESOLVE Ecoregions 2017 (Dinerstein et al., 2017), CC BY 4.0
Potential habitat modelled from GBIF occurrence data. Map © Zveriki.com, licensed under CC BY 4.0.
Beak count
birth year
Maturity
terrestrial habitat, land surface outside water
sq mm
yr
Beak color
comfortable summer, +20…+25 °C
How similar?
Male ♂
until the celebration
baby / chick
Tundra
age as {name}
How do they breed?
On the go from 3.5 to 6 years. Hedgehogs, crows, lizards treat themselves to birthday snacks 6 times a year
What if eaten?
Neither
Moving up vertical surfaces like trunks or rocks to reach food.
from birth to adulthood
Young offspring still dependent on parental care.
nest
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Lots of rain and warm summer
from birth to death
much snow in winter, cold
Talons color
forests on land — tropical, temperate, boreal
water often floods the land, lots of grass
live voles and similar small rodents
rodents
Temperate mixed forest
Duration
This is me
most of Europe and Asia, various forests, steppes and tundra
claws
Always very wet
Gamers
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
My age?
wk
My size?
terrestrial
Taiga
Asexual
swap
active predation
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Where do they take shelter?
Feathered legs color
celebrated their {n} birthday
When you would have been born if you lived as {name}
Daddies
Lifespan maximum
Capturing or collecting food while airborne.
whole life
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
Primarily detects and locates food using eyesight.
embryo
summer warm, many oaks, birches, maples
Length
kg
mice
Rapid forward strike to seize prey.
arboreal
voles
Observations
◉{N} more on tap