---
title: "Fox Cubs: The First Year, Month by Month"
description: "From a 100 g blind cub in March to a dispersing adult in November. What happens in a fox's first year, and what to do if you find a cub alone."
url: https://foxhut.online/blog/fox-cubs-first-year
published: 2026-05-29
modified: 2026-08-06
topics: ["cubs", "behaviour", "red fox"]
---

# Fox Cubs: The First Year, Month by Month

**Short answer:** Fox cubs are born blind and dark grey-brown in March, weigh about the same as a small orange, and stay underground for their first four weeks. They are weaned by two months, hunting badly by midsummer, and gone by autumn. More than half will not see their first birthday, and the single most common mistake people make is 'rescuing' a cub that was never in trouble.

## Key takeaways

- Gestation is 52 days; a typical litter is four or five cubs, born once a year in a single spring peak.
- Newborn cubs are dark grey-brown with blue eyes — the red coat and amber eyes arrive at around six weeks.
- A cub alone in the open in May or June is usually normal and being watched; intervening is often the wrong call.
- Autumn dispersal is the deadliest period of a fox's life; most first-year mortality is traffic.

A red fox's year has one reproductive shot in it. A vixen is in oestrus for roughly three days, once, in midwinter. Everything that follows — the screaming in January, the disappearance in March, the half-grown animals crossing roads in October — runs off that single window.

> **Field note — the cub that did not need rescuing**
>
> My first spring on rescue call-outs, we were sent to a cub sitting alone on a lawn, crying. I was certain it was orphaned. We watched from a kitchen window instead of picking it up, and eleven minutes later the vixen came over the fence, picked it up by the scruff and took it back through the hedge. I have thought about that eleven minutes on every call since.

## January to February: pairing and mating

The winter calling season is the noisy part of the process, and it is what most people notice first. Pairs form or re-form, territories are contested at the edges, and mating occurs. Because the fertile window is so short, a vixen that misses it does not breed that year at all — there is no second litter.

## March: birth underground

After about 52 days of gestation the vixen gives birth in an earth. Cubs weigh 80–150 g, are blind, deaf and dark grey-brown, and cannot regulate their own temperature. The vixen stays with them almost continuously for the first two to three weeks, and the dog fox and any helper vixens bring food to the entrance.

> **Why this is the wrong month to disturb an earth**
>
> A vixen who feels the site is compromised will move her litter, carrying cubs one at a time to a backup earth. That is a dangerous operation, and it is the usual reason cubs get separated from a family. If you suspect an active earth in March or April, stay away from it.

## April: eyes open, first light

Eyes open at around two weeks — slate blue at first, turning amber by six to eight weeks. By four weeks the cubs are appearing at the entrance in daylight, still fluffy and grey-brown, with short muzzles and blunt faces that look nothing like the adult profile.

**A cub's first eight months**

| Stage | Value |
| --- | --- |
| Mar | Born blind, 80–150 g |
| 2 wks | Eyes open, blue |
| 4 wks | First seen at the earth |
| 8–10 wks | Weaned |
| 4 mo | Hunting for itself |
| 7–10 mo | Disperses |

*Everything from birth to leaving home happens inside a single year.*

## May and June: the play season

This is when fox cubs are visible, noisy and, for a few weeks, easy to watch. Play-fighting establishes a rank order within the litter, and it is not gentle: dominant cubs get fed first and, in years when food is short, the difference decides who survives. Gekkering — the chattering squabble call from our [guide to fox sounds](/blog/fox-sounds-explained) — is more or less constant around an active earth.

Weaning finishes around eight to ten weeks. Adults begin bringing whole prey rather than regurgitated food, and cubs start following adults on short foraging trips.

## July to September: learning the job

By midsummer the family is loosening. Cubs are hunting for themselves — badly at first, and daylight sightings of an inept young fox stabbing at grasshoppers are common in July. The earth is progressively abandoned in favour of lying up above ground, and the litter starts to break apart.

*Fox cub development timeline*

| Age |Stage |Notes |
| --- |--- |--- |
| 0–2 weeks |Blind, dark, dependent |Vixen rarely leaves the earth |
| 2–4 weeks |Eyes open, moving in the earth |Blue eyes; grey-brown fur |
| 4–8 weeks |Emerging, playing, weaning |Red coat and amber eyes develop |
| 8–16 weeks |Solid food, first hunting |Family group still loosely together |
| 4–7 months |Independent foraging |Adult size approached; skull still lighter |
| 7–10 months |Dispersal |Males travel furthest; peak mortality |

## October to December: dispersal, and the numbers

Autumn scatters the year's cubs. Young males typically travel furthest — occasionally tens of kilometres, and exceptionally far more — while some young vixens stay on their natal territory as non-breeding helpers. Dispersal is dangerous: animals cross unfamiliar roads, enter occupied territories and take risks they have no experience of. In many studied populations more than half of all cubs born do not reach their first birthday, and vehicle collision is the leading cause.

**What to do if you find a cub**

1. **Stop and look before you touch anything.** A well-furred, alert cub sitting in the open in May or June is almost certainly fine and being watched.
2. **Go inside and watch from a window for two to three hours** if you can. Standing over the cub is the single thing most likely to keep the vixen away.
3. **Check the specifics that actually matter:** is it cold, thin, covered in flies, visibly injured, or has it been calling continuously for hours with no adult returning?
4. **If none of those apply, leave it alone** and keep dogs and children away from that part of the garden for a day or two.
5. **If any of them apply, call a wildlife rescue** and describe exactly what you see. Do not start feeding it — never give cow's milk, which causes severe diarrhoea in cubs.
6. **Only contain the cub if the rescue asks you to**, and then use a ventilated box in a quiet, dark, warm room, with no handling and no visitors.

## If you find a fox cub alone

1. **Assess before acting.** A well-furred, alert cub sitting in the open in May or June is normal. A parent is usually nearby and waiting for you to leave.
2. **Watch from a distance for a few hours** — ideally from indoors or a window. Do not stand over it.
3. **Intervene if the cub is** visibly injured, cold, thin, covered in flies, or calling continuously for hours with no adult returning.
4. **Call a wildlife rescue rather than handling it.** A cub taken unnecessarily loses its family and its territory, and hand-reared cubs release poorly.
5. **Never feed a found cub milk.** Cow's milk causes severe diarrhoea in canids and kills weak cubs fast.

The rule of thumb that wildlife rescues repeat every spring is worth repeating here: most 'orphaned' cubs are not orphans. The single most useful thing a member of the public can do in cub season is watch carefully and wait.

The winter that produces all this is described in [when is fox mating season](/blog/fox-mating-season), and the ground the cubs are born under is covered in [what does a fox den look like](/blog/what-does-a-fox-den-look-like). For how few of them make it through, see [how long do foxes live](/blog/how-long-do-foxes-live).

## Frequently asked questions

### When are fox cubs born?

In temperate regions, in March in most years, after a gestation of about 52 days. Birth timing shifts a few weeks earlier or later with latitude.

### How many cubs are in a litter?

Four or five is typical for red foxes, with a range of one to twelve. Litter size tracks food availability in the preceding winter.

### What do fox cubs look like?

Newborns are dark grey-brown with blue eyes and short blunt muzzles. The red coat and amber eyes appear from about six weeks, and by autumn they are hard to tell from adults at a distance.

### Should I move a fox cub found in my garden?

No, unless it is injured, cold, emaciated, fly-blown or has been calling alone for hours. Cubs sit in the open normally in early summer and the parents are usually close by.

## Sources

- [Vulpes vulpes — species account: reproduction and development](https://animaldiversity.org/accounts/Vulpes_vulpes/) — Animal Diversity Web, University of Michigan
- [Red fox](https://ptes.org/get-informed/facts-figures/red-fox/) — People's Trust for Endangered Species
- [The Fox Project](https://foxproject.org.uk/) — The Fox Project

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