Black Duck -- Marloes Mere

The female Black Duck was showing very well until c1100 this am, when it swam behind some sedges.The bird feeds most of the time, but we did see it out of the water preening, & briefly in a short flight.
The bird is paired with a male Mallard, which it never leaves.
We have had excellent views of the bluish/purple speculum bordered with black only.
In flight/ preening when the underwing is visible this can be seen to be a clean white.
There does not appear any feature that does not fit a pure bird;- ie no sign of a hybrid.
There is another photo taken with" phone through scope "on Birdguides posted this am.
More photos will appear later today,( midland birders here first thing.)
As she is paired & settled; she should be relatively easy to watch from the new hide,-- until she starts sitting!!

Pembs. 2nd record, & Wales 3rd. record of this North American Duck.(requires acceptance.)

Also present, Sand Martin, Chiffchaffs & a feral Snow Goose.