Badger - The charity also states that badger cubs from one litter can have different fathers! The animals are able to delay pregnancy, typically until winter. Spring and summer are the usual time for mating, but it can occur at any time of the year and cubs from several matings can be born at the same time.

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Blackbird - The British blackbird is a species of thrush. Adult males are the only black members of the family. Female blackbirds and juveniles are brown and speckled.

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Blackbird - Blackbirds mate for life, although separation has been noted following poor breeding. The young remain in the nest for around three weeks.

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Barn owl - The barn owl is reportedly the most-widespread land bird in the world, inhabiting every continent except Antarctica.

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Barn owl - Its incubation period is around a month with hatching taking place in the order the eggs were laid (a couple of days apart). Consequently, the youngest chick in a clutch may be several weeks younger than its oldest sibling.

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Hedgehog - British hedgehogs usually have five or six babies in a litter.

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Hedgehog - The Wildlife Trusts reports that in the last decade, wild hedgehog numbers have fallen by 30%, and there are now thought to be fewer than one million left in the UK.

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Hedgehog - Baby hedgehogs are called hoglets and they are usually born in June and July.

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Pigeons - Even urban pigeons have a peak in reproduction in spring. Around eight to 12 days after mating, they lay an average of two eggs, which hatch around 18 days later.

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Goldfinch - European goldfinch chicks are fed by both parents. The parents raise two or three broods per year.

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Rabbit - The BBC reports that European rabbits become sexually active at three to four months old, and that despite their reputation they are not prolific breeders.

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Rabbit - Baby rabbits, or kits, are born hairless, blind, and helpless.

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Moorhen - The RSPB reports that moorhens breed in lowland areas, especially in central and eastern England.

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Moorhen - They nests from the leaves of aquatic plants and have an average of six eggs per clutch.

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Squirrel - Red squirrels are native to Europe but have been widely replaced by the grey squirrel in England.

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Squirrel - They mate between January and March, and have a litter of three or four. Young squirrels are called kittens and they are born without teeth or hair.

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Black swan - Black swans are native to Australia but were brought to the UK as ornamental birds. This family nests at Martin Mere Wetland Centre in Lancashire.

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Mute swan - The RSPB reports that mute swans breed across most of the UK, other than in northern Scotland, mid-Wales, and the moors of south-west England. Unlike many water birds, the male helps with nest construction and incubation.

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Fox - Foxes can be found throughout the whole of the UK. As British Wildlife Centre notes, they are willing to eat almost anything and have become particularly adept at surviving alongside man in farmland and urban areas.

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Fox - Litters of four or five cubs are born in the spring.

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Robin - Robins are notorious for nesting almost anywhere!

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Robin - They start courtship in January and breeding season normally begins a couple of months later. They only pair for the breeding season.

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Dormouse - Hazel dormice are the only species of dormice native to the British isles. They breed once per year and produce litters of an average of four.

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Dormouse - They are born hairless and their eyes do not open for around 18 days.

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Hare - Young hares are called leverets, and they are born with fur. Breeding takes place between February and September and a female hare can have three or four litters each year.

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Hare - Normally shy, hares are more visible in spring, when they can be seen chasing each other even in daylight. This is thought to be competition between males to establish dominance.

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Hare - During this "March madness" season, hares can be seen boxing.

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Otter - River otters can be found throughout the UK, but are particularly common in Scotland.

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Otter - They are nonseasonal breeders and usually have litters of one to four pups.

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Barn swallow - In the UK, the barn swallow breeding season usually starts in late May to early June.

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Barn swallow - The eggs are incubated for 14 to 16 days and the young leave the nest 18 to 23 days after hatching.

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Barn swallow - These birds live in open country with low vegetation, such as farmland, and prefer to be near water.

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Badger - The Badger Trust reports that February is the peak month for badger cubs to be born in Britain, but that there have been instances of lactating sows as late as June.

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