When a female Blue-winged Teal was found at Rainham Marshes on Thursday, Brian, having dropped his grandchildren off at school, was already on his way to Rainham and quickly located the Teal upon arrival. This morning, he offered to drive me to Rainham, allowing me to connect with the bird. It's 18 miles from home, and we arrived at the car park around 7am, and the Teal had already been reported on the news services en route. We walked up the steps onto the seawall and joined a small group of birders already present. A quick scan of Purfleet scrape and a Whimbrel is found, a bonus year tick. A short distance away on a small body of water was the Blue-winged Teal.
Unlike the obvious features of a drake Blue-winged Teal, the female has subtle features. It has white eyelids that are surprisingly obvious; the white loral spot at the base of the bill is even more obvious, it also has a dark eye stripe that meets the nape, and it has the powder blue patch on its upperwing coverts of the drake, which is normally not visible unless in flight or preening.
We watched the teal from our seawall position until the reserve finally opened at 9.30! allowing us to walk along the boardwalk past Purfleet Hide to get a closer look at the duck. It spent most of its time feeding along the channels, and occasionally it walked onto the exposed mud, revealing its yellow legs. and a very brief glimpse of the powder blue wing patch.