Thanks Dani for that but I live in very rural Herefordshire where I cannot see any of those near me. My colonies are on a farm with only hedgerows around this time of year and they normally thrive on what they find there.
It must be something from a hedgerow???.
All my rural colonies are bring in tons of two different types of pollen and were very docile today. A burnt orange and an off white cream colour. As I have the river Meon a very short distance away H.Balsam is most likely but I'm not to sure about the other. The rich smell of blossom honey from each of the hives as I removed the roof was lovely, in the last week they have managed to store a fair bit more nectar, ripen it and have started to cap the cells.
Narrow entrances are fending of the wasps nicely, and I was a little pleased to see a wasp who managed to sneak into the top of one of the supers and was shortly hauled out again by 3 bees not looking to healthy.