Beside the Thames in the Erith area (aka the 'Patch')

Black-Headed Gulls
Black-Tailed Godwits
a Blue Tit (first of the Year on the 'Patch')
a Common Sandpiper (first of the Year on the 'Patch')
Cormorants
a Curlew (first of the Year on the 'Patch')
Feral Pigeons
a Grey Heron
a Kingfisher aka a Mini-Torpedo (first of the Year on the 'Patch')
Magpies
Mallards
a Pied Wagtail
Redshanks
a Robin (first of the Year on the 'Patch')
a Rock Pipit
and Teals

Plus a single Hoverfly (assumed Syrphus sp.) seen whilst walking away from the River to catch the Bus viz.