This is the time of year when the dawn chorus is most noticeable. It starts at 4 a.m. and usually finishes around 4.30 a.m. when it starts to get light enough for the birds to find food and get on with the day. In May the migrant birds have arrived and the males of the species are calling to the females and, usually, by the end of May they have found their mates. There is generally an order to the chorus: blackbird first, then robin, wren, tawny owl, warblers, song thrush and, lastly, blue tit. There is also a dusk chorus but, as it is more windy at dusk, it is not so noticeable. Also probably everything isn’t as quiet at it is a 4 in the morning.