May 2022

Dr Phil Smith Wildlife Notes: April

Heath Dog-violet, Viola canina at Ainsdale LNR (Dr Phil Smith)

Following on from an exceptionally dry March, the spring drought continued with only five days of measureable rainfall in April and none after 12th. By the end of the month even the TV weather presenters were acknowledging that “gardeners would appreciate some rain.”  You might well ask why farmers, growers, the water supply industry and the natural environment did not merit similar concerns! The Met. Office acknowledged “a run of dry Aprils in recent years.” In fact, this weather pattern extends back to 2000, as I have repeatedly pointed out in these notes.  Cold dry nights meant awful breeding conditions for Natterjack Toads. I heard one call briefly at Hightown on 27th and that was it. At least, some sun-loving insects benefited. I was keen to catch up again with the almost mythical Early Bear Hoverfly that I saw in March. On 8th I was crossing Falkland’s Way dunes on my way to Ainsdale NNR when I spotted a familiar shape on a sunny Sycamore trunk. It was an Early Bear Hoverfly, doing its bumblebee impression. It even tolerated a close approach for photos. Many more spring-flying hoverflies appeared during the month, especially on south-facing woodland edges where they love to bask on young Sycamore leaves. At Ravenmeols, I recorded 14 species, including one that was new to me - the Triangle-spotted Syrph, a tiny black hoverfly with triangular yellow markings. Overall, however, numbers of hoverflies were much reduced by the dry conditions.