April is a month of mating within the animal kingdom as those species that haven't yet courted begin to do so. However, for those that mated even earlier in the year, their young are now being born with Badger cubs being a particularly common site around well-used dens. The other big difference this month is that numerous bird species that wintered further south in warmer climates, are now returning to breed and filling the air with an increasing amount of life.
European Badgers
Wood Mouse Molehills Common Cuckoo Skylark Common Starling Young Great Crested Newt Orange-Tip Butterfly Cowslips Bluebells