16th March,clear and mild again,found four Comma at Brooklands lake.Whilst walking through the Hawthorns along by the river a large bird of prey came over low,my first thoughts were Honey Buzzard,I then realized where I was and the time of year.It did put the herons up,it was probably just a very big female Sparrowhawk.Also found one Pochard on Brooklands and 2 Med Gulls over Abbey.