Patchwatch

A morning visit to the ressies in dull and dreary conditions once again raised hopes for a local vagrant.  Heading to the southern complex, No.4 reservoir held around 30 boisterous Common Terns, with a decent flock of 14 Shelduck congregated on the bank.  Reed Warbler, Sedge Warbler, and Grey Wagtail were active alongside No.2.

Moving onto Lockwood, a single Yellow Wagtail flew through and there was a steady passage of hirundines and notable was a small group of Common Swift flying high to the east.  Half a dozen Common Tern were commuting between the reservoirs.

Later on, details were received of a Nightingale from Tottenham East Marsh.

Taken from londonbirders wiki:

Tottenham East Marsh: (actually in Walthamstow) Singing Nightingale on South side (07:20-11:50 at least), Tree Pipit, Meadow Pipit & Yellow Wagtail over, Lesser Whitethroat