The southern chalkstreams are at a 30 year low according to one river keeper I was chatting to. The fishing hasn't been easy and there have been too many trout getting in the way. There have been some good fish around though.....
From the Wiltshire Avon.....
....the Wylie...
.....the Test
....and the Lambourn.
All these fish came to size 18/20 tungsten beaded hare's ear nymphs, usually with a black bead (avoid gold beads, these fish see an awful lot of those).
Haven't visited the Itchin yet this season.
Oh, in the interests of giving an accurate picture, my visit to a northern chalkstream with Coasty and Viking resulted in me having a blank (they both caught fish!)
Regards
Peter