I heard my first Chiffchaff on Wednesday (15th) at Bodenham Arboretum, it made my day!
Yesterday (16th) a visit from a Grey Heron, it was perched on top of conifers at the end of my garden. A Carrion Crow was not well pleased with this invader on it's territory and launched a couple of swoops/attacks on the heron. As you can see from the images the heron was somewhat laidback with the mild onslaught but after a minute or two decided to take flight.
I have not seen a single Butterfly at present, I doubt the weekend will yield many with rain forecast.