Highlight of the day was a pair of Black-necked Grebes. Here is one. In winter they have a black back, hind-neck and crown and are otherwise pale grey. In summer plumage they are little stunners. These birds had stopped off on migration, probably to Fennoscandia or Iceland, though a few pairs breed in Northern Scotland.
Here is the pair – the sexes are the same. A third bigger than Little Grebe, in winter they are tricky to separate from Slavonian (or Horned) Grebe. The peaked head is the main clue though that can depend on posture. The latter species has a red neck in summer so no confusion now.
“Are you looking at me?”
And going away. Note how the angle of the light can make the green on the head go mauve – just as it can with the head of drake Mallards.
And the same effect is shown here on a duck Teal where the green speculum looks blue.
Note the pale spot behind the bill, in front of the eye. Often noted in birds guides as the best indicator of a duck Blue-winged Teal – a rare visitor to the UK. Afraid not – even if the speculum looks blue.
I told you the speculum was green really.
Now it has gone (pale) blue again.
Back to green.
A full summer-plumaged adult.
And here the underside.
And if you want a real close-up ...
This adult just scraping the water with its left win-tip. A Coot looks on.
Almost by accident I got some shots that included Sand Martins.
Two birds here but not doing as well as ...
... The adult Black-headed Gull formation team.
More practice needed by these two.
Another first summer bird – will not breed this year.
This adult is being equally aerobatic at snatching food from the surface.
Time for a rest and to look this way ...
... And that.
With the usual proviso over my flower ID skills I think this is Ground-ivy (Glechoma hederacea).
A mammal that we do not want to see – it is an (American) Mink (Neovison vison). An invasive species that escaped / was released when the Mink farming industry collapsed. Its only predator is the larger Otter (Lutra lutra). It does serious harm to our resident fauna.
(Ed Wilson)