Wildlife Breeding Habits in March

March is a pivotal month in the UK wildlife calendar—early spring triggers breeding behaviour across a wide range of species.

As daylight increases and temperatures begin to rise, many animals start nesting, mating, or preparing for young.

Here’s a detailed breakdown of UK wildlife that breeds in March:

Birds That Breed in March

March marks the start of the bird breeding season for many resident species.

Early nesting birds:

• Eurasian Blackbird – One of the earliest nesters; often already incubating eggs

• European Robin – Begins breeding very early, sometimes late winter

• Common Wood Pigeon – Can breed almost year-round, including March

• Carrion Crow – Starts nesting in tall trees

• Common Raven – Often already feeding chicks by March

Woodland and garden birds:

• Great Tit – Begins nest-building and territory defence

• Blue Tit – Actively inspecting nest sites

• Chaffinch – Singing and pairing up

👉 March is also peak time for birdsong, as males defend territory and attract mates.

Mammals Breeding or Giving Birth

Many mammals don’t mate in March—but this is when young are born after winter pregnancies.

Red Fox

Cubs are born in March

Litters stay hidden in underground dens

European Badger

Cubs emerge above ground for the first time

Births often occur earlier (Jan–Feb), but activity increases now

European Hare

Breeding season peaks

Famous “March hares” boxing behaviour

Grey Squirrel

First litter of the year born around this time

Brown Rat

Breeds year-round, but activity increases in spring

Deer Breeding Cycle (Indirect Activity)

Most UK deer breed in autumn, but March is still important:

• Roe Deer – Pregnant females nearing birth (kids born May–June)

• Red Deer – Antlers regrowing in preparation for later breeding season

Amphibians: Peak Breeding Season

March is one of the most important months for amphibians.

Species actively breeding:

• Common Frog

• Common Toad

• Smooth Newt

What happens:

• Mass migration to ponds

• Spawning (frogspawn/toadspawn visible)

• Males competing for females

👉 This is when you’ll see garden ponds full of life.

Insects Emerging & Breeding

Warmer days trigger insect activity.

Key early breeders:

• Buff-tailed Bumblebee

Queens emerge and start new colonies

• Honey Bee

Colony activity increases

Early brood rearing begins

Butterflies like:

• Peacock Butterfly

• Brimstone Butterfly

Seabirds Returning to Breed

Along UK coasts, March signals the return of seabirds.

Examples:

• Northern Gannet

• Atlantic Puffin

• Black-legged Kittiwake

They begin:

• Pair bonding

• Nest site selection

• Colony formation

Why Is March So Important?

March represents a turning point in the UK ecosystem:

• Daylight increases rapidly

• Food becomes more available

Hormonal changes trigger breeding instincts

This leads to:

• Birdsong explosion

• Amphibian migrations

• Mammal births

• Insect emergence

Quick Summary

Breeding in March:

Early nesting birds (blackbirds, robins, crows)

Amphibians (frogs, toads, newts)

Insects (bumblebees, butterflies)

Giving birth:

Foxes

Squirrels

Badgers (emerging young)

Preparing to breed:

Many other birds and mammals

If you want to experience UK wildlife at its most active, March is one of the best times to look.

From frogspawn in ponds to fox cubs underground and birds building nests, the natural world is rapidly coming back to life after winter.

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