Have you seen the Little Egrets in the Wandle? I once saw about 4 in different locations going up the Wandle Trail to Merton Abbey Mills, but I haven’t seen any for quite a while.
The Kingfishers in the Wandle by Beddington are quite easy to see if you sit on the river bank on a warm summer’s day and wait patiently for about 10 minutes. Although they just appear as a streak of electric blue as they fly past.
We’ve see the kingfishers and the little egrets but out on the river (Hogsmill or Tolworth Brook?) by Horton in Epsom when heading out that way on the cx bikes, they’re pretty cool. Morden Hall Park had a few nesting herons in it last year.
A few months ago Mrs K was walking along the wandle by Colliers Wood and stopped to watch a heron when it suddenly lunged into the water and came out with an eel in its beak. Pretty cool for SW London.
I can remember as a child this bit of the Wandle being pretty turgid with. bid waste paper site polluting the area in general.