The California gull is a medium-sized bird of the gull family. It lives in the western part of North America near lakes, rivers, and saltwater bodies.
The California gull differs from other gulls in its yellow legs and red spot on the bill. It is important for nature because it eats harmful insects and maintains balance in aquatic and coastal ecosystems.
picks up food from the water surface or ground, sometimes catches prey in the air
Immature form that undergoes metamorphosis before adulthood.
pecking
Worker
Hot summer almost without rain
scraping
birth time
Submerges underwater to reach prey or food at depth.
Pelagic Ocean
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
g
lots of rain, warm summer, snow in winter
t
When your next jubilee falls in {name} life years
Human
mangrove
detritus, eat dead remains of plants, animals and all kinds of organic debris on the bottom
days
Warm summer
worms
invertebrates
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.
mollusks
Rasping or abrading food surfaces with teeth or mouthparts.
beak
adult
Maturity
organic debris
mangrove forests along the seacoast
Coconut
invertebrates
insects
About health
marine coastal
vertebrates
cool, lots of coniferous trees, snow in winter
Searches for food on or among rocks and stony surfaces.
kleptoparasitism
When your next birthday would fall if you lived as {name}
Repro interval
results
summer warm and almost no rain
aerial
summer warm, winter not very cold
Colors
Sex
Upcoming jubilees
Gremllins
diving
mo
Uses jaws or beak to break hard-shelled or tough food items.
live fish
rains are very rare, almost a desert
all seas and oceans
Trophic type
all living animals without backbone
Filters
Upcoming birthdays
standing fresh waters — lakes, ponds, oxbow lakes
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
Desert and dry shrubs
rains almost always, very humid
Age (juvenile)
Age (from birth to death)
rock
Age (embryo)
Wanderers
Food items are collected from exposed outer surfaces of substrates.
Feeding occurs in open air space above ground or water.
far from shore, deep water, large whales and sharks live here
Jubilee = every 10th birthday
dry, cold winter, lots of grass, few trees
Earliest developmental stage inside an egg or womb.
Business sausages
Lifespan average
young after fast growth
Juvenile stage following larval metamorphosis but not yet adult.
What do they look like?
Maturity
scavenging
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
dead vertebrates
fish
end of acceleration
Share
swampy freshwater biotopes — peat bogs, marshes, river mangroves
live snails, mussels, oysters
Find a pet...
Mature, fully developed individual capable of reproduction.
Actively hunting and capturing live prey.
from 0.5 to 0.8 kilograms, 0.5 – 1 meter
where the river flows into the sea, slightly salty water, lots of fish and birds
flight
Pets
Nearctic realm
Repeatedly strikes or probes substrate with beak to obtain food.
Lots of rain and cool summer
Feeding occurs primarily on land or in vegetation.
{name} jubilee
cm
Temperate coniferous forest
carrion
Old-timers
Find an animal or breed...
Wingspan
Captures prey or food items while in active flight.
turns
Rascals
Flooded grasslands
bird
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
Actively searching habitats to locate food items.
Where are they found?
picks up food from the water surface or ground, sometimes catches prey in the air
all rivers and lakes
Summer almost without rain
Down color
lots of rain, cool summer, snow in winter
Locomotion through water employed while searching for or capturing prey.
Legendary longevity: over 100 years. Galapagos tortoises, Greenland sharks, ocean quahogs celebrate with family once every 4 years
Offspring
Elders
Bro
lakes and ponds
freshwater marsh and wetlands
Taxons
almost no rain in summer, more precipitation in winter
if born as {name}
omnivore
age
birth date
swimming
Close
was
Career from 7 to 15 months. Dwarf hamsters, voles, field crickets celebrate their birthday twice a month
The basics
coastal
My weight?
summer is hot and almost no rain falls
Non-stop carnival: they only live a few days. Mayflies, rotifers, midges celebrate their birthday more than twice a day
surface
primary food sources
Beak size
Potential Habitat
lots of grass, few trees, rains are rare
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
Feeding occurs in water bodies such as rivers, lakes, or oceans.
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
aquatic
{name} birthday
live annelid worms
Nearctic realm
No results found
North America and Greenland, from tundra to forests
On the map
lunge
Pleasant summer
Female ♀
all life stages
Cold and almost dry
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.
birth year
lots of grass, few trees, rains occur
Maturity
bird eggs
terrestrial habitat, land surface outside water
sq mm
yr
Beak color
comfortable summer, +20…+25 °C
How similar?
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
Legs color
What if eaten?
Very dry
Neither
from birth to adulthood
Young offspring still dependent on parental care.
dead invertebrates
nest
What do they eat?
dry and cold almost all year round
Where do they live?
Immature individual that has not yet reached reproductive maturity.
Marine world
Lots of rain and warm summer
from birth to death
much snow in winter, cold
early young
Plumage color
water often floods the land, lots of grass
River estuary into the sea
Freshwater
Temperate mixed forest
Duration
live insects
saline marine habitat
This is me
Warm summer with almost no rain
Steppe
freshwater
Always very wet
Gamers
crushing
How are they built?
marine
shallow near the shore, water rises and falls, crabs live here
Temperate steppe
mm
Theoretical lifespan
ml
Stars
Link copied
coastal marine zone — shelf, neritic zone
My age?
wk
My size?
terrestrial
Taiga
Asexual
swap
freshwater environment — rivers, lakes, ponds, swamps
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?
Warm summer and lots of rain
Head color
celebrated their {n} birthday
When you would have been born if you lived as {name}
Littoral Zone
Cold steppe
Daddies
Lifespan maximum
foraging
Capturing or collecting food while airborne.
whole life
Hermaphrodite ⚥
North America and Greenland, from tundra to forests
embryo
Hard, projecting mouthpart used to probe, pluck, or crack food.
summer warm, many oaks, birches, maples
Length
kg
very hot and dry, rare rains, cacti live
lots of rain, warm and pleasant summer
Rapid forward strike to seize prey.
Observations
◉{N} more on tap