First time out this year looking for hoverflies, managed 8 species. Photographed 6 and 2 I didn't were Chrysotoxum arcuatum [new for Caerau] and Helophilus pendulus.
Platycheirus scutatus sens sl. male - another common species with 2 very similar rare species, neither of which has been recorded in Wales [see below]
under magnification you can see tufted hairs on the top of the front femur in an "L" shape, which is diagnostic for "scutatus". Although it is preferred to call it "sen. sl." which is latin for most probably but I have reservations and this is the way I have to record it scientifically.
Besides hoverflies a few summer birds have returned in 1 Blackcap, 1 Redstart, 6 Willow Warbler and 2 Chiffchaff. Resident breeders included 2 pairs of Linnet, 1 pair of Skylark, and a Great Spotted Woodpecker.