The rufous-browed mountain swallow is a small bird with a bright rufous stripe above the eyes. It lives on cliffs in West Africa, builds nests from mud, and catches insects in the air.
The rufous-browed mountain swallow differs from other swallows by its rufous eyebrow and choice of high cliffs for nesting. It is beneficial by destroying a large number of flying insects.
Low precipitation in winter
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Tropical moist forest
Worker
Elders
Bro
birth time
Taxons
Heavy rains in summer
if born as {name}
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
beetles
g
age
t
When your next jubilee falls in {name} life years
Human
birth date
hot Africa south of the desert, many savannas and forests
Palearctic realm
Close
Egg shell color
was
days
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
How old you would be if you lived as {name}
Neotropical realm
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.
My weight?
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
very heavy rains in summer, almost no precipitation in winter
adult
Maturity
primary food sources
South and Central America, hot and humid, huge forests
Beak size
Potential Habitat
About health
When your next birthday would fall if you lived as {name}
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
Repro interval
mosquitoes
results
Mass
Mosquitoes, fruit flies, small crustaceans hustle for up to 7 months and throw a birthday party every week
aerial
live flies, horseflies, dipterans
Colors
Sex
{name} birthday
Upcoming jubilees
Gremllins
mo
hot, rains in summer, little precipitation in winter
Always hot
No results found
little precipitation in winter, more in summer
Hot with heavy summer rains
Trophic type
Filters
On the map
all life stages
Female ♀
insectivore
Down feathers color
always hot and humid, huge trees and vines
Upcoming birthdays
world of Afrotropics
Breeding structure built or used for laying eggs and raising offspring.
termites
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.
Truly long lives: 40-100 years. Bowhead whales, albatrosses, giant tortoises recall their birthday at most once a year
Lifespan
birth year
Maturity
16 to 24 grams, 7 – 12 centimeters
terrestrial habitat, land surface outside water
Age (from birth to death)
sq mm
yr
Hot, little precipitation in winter
Beak color
most of Europe and Asia, various forests, steppes and tundra
Wanderers
Feeding occurs in open air space above ground or water.
How similar?
Wings size
Jubilee = every 10th birthday
Male ♂
until the celebration
baby / chick
hawking
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
Earliest developmental stage inside an egg or womb.
Business sausages
from birth to adulthood
live beetles — various species
Young offspring still dependent on parental care.
flies
nest
Lifespan average
What do they eat?
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Plumage color
forests on land — tropical, temperate, boreal
What do they look like?
Maturity
emergence (insects)
world of Afrotropics
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
Duration
Find a pet...
live mosquitoes and midges
Mature, fully developed individual capable of reproduction.
This is me
Actively hunting and capturing live prey.
Gamers
flight
hot, heavy rains in summer, little precipitation in winter
Pets
How are they built?
mm
Theoretical lifespan
ml
Stars
Link copied
mountain
My age?
wk
My size?
terrestrial
{name} jubilee
Asexual
swap
cm
live termites
Old-timers
Find an animal or breed...
active predation
Wingspan
Captures prey or food items while in active flight.
turns
Rabbits, falcons, red-eared turtles hang out for 6-9 years and party on their birthday four times a year
Rascals
Where do they take shelter?
terrestrial forest
Tail color
celebrated their {n} birthday
insect
hot Africa south of the desert, many savannas and forests
When you would have been born if you lived as {name}
very hot all year round, frequent rains, but sometimes dry
Litter size
Daddies
Lifespan maximum
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
Capturing or collecting food while airborne.
Hermaphrodite ⚥
Where are they found?
Mandarin
embryo
Length
kg
Observations
◉{N} more on tap