21 Sep 19

Priorslee Lake and The Flash

Priorslee Lake:  05:45 –08:55
The Flash:  09:00 – 09:40

10.0°C > 13.0°C:  A few bits of high cloud, otherwise fine and clear again. Light / moderate SE breeze. Very good visibility.

Sunrise: 06:53 BST

Priorslee Lake:  05:45 – 08:55

(228th visit of the year)

Bird notes from today:
The 06:55 ‘football’ field count gave me only 28 Black-headed Gulls, just seven Wood Pigeons, 25(!) Magpies, the usual single Carrion Crow and 65 Pied Wagtails. There were another four Magpies on the academy playing field at this time.

Other notes:
- Two Little Grebes seen in the NE area as they have for the last few days. Another seen and heard at the W end. All looked like immatures, though birds may be mainly in winter plumage by now and therefore not separable.
- A big early arrival of large gulls both from the N and the W. Most (c.275) stopped off briefly with 151 more counted flying straight over.
- Four House Martins seen over the ‘football’ field at 08:50.

Bird totals:

Birds noted flying over or flying near the lake:
- 7 (?♂) Mallard
- 15 Lesser Black-backed Gulls: seven of these first-winter birds
- 151 unidentified large gulls: too dark to ID
- 4 Feral Pigeons
- 2 Stock Doves
- 64 Wood Pigeons
- 76 Jackdaws
- 203 Rooks
- 3 Starlings
- 4 Meadow Pipits

Hirundines etc. noted:
- 4 House Martins

Warblers noted (singing birds):
- 8 (1) Chiffchaffs
- 2 (0) Blackcaps again

Counts from the lake area:
- 2 + 6 (1 brood) Mute Swans
- 7 (4♂) Mallard
- 4 (0♂) Tufted Ducks
- 1 Grey Heron
- 3 Little Grebes (ages?)
- 8 adult + 1 immature + 9 juvenile (3 broods) Great Crested Grebes
- 5 + 2 (2 broods) Moorhens
- 125 Coots
- c.75 Black-headed Gulls
- 85 Lesser Black-backed Gulls: 62 of these first-winter birds
- 3 Herring Gulls: 2 of these first-winter birds
- c.275 unidentified large gulls: too dark to ID (see notes)

On the lamp poles pre-dawn:
- 1 Garden Spider (Arameus diadematus)
- 1 unidentified spider.

Very few later sightings:
- 1 Common Darter dragonfly
- 1 Brown Hawker dragonfly
- 1 Grey Squirrel

Too much breeze for any mist this morning. Just a touch of colour to start the day.

There was only a single full-grown but still immature Great Crested Grebe remaining today. Here it has a preen.

You have probably had a fill of photos of first-winter Lesser Black-backed Gulls ..... The sheer number of birds here and the quality of the light to photograph them tempted me again. As winter looms they will become less numerous and getting sharp images of flying birds will become increasingly difficult as light-levels decline. Here is another bird showing some pale on the very tip of the bill. Note also that on both wings the inner primaries are slightly misplaced. I am not sure whether this is a moult effect or whether the bird needs to preen to sort its feathers out.

Is the innermost primary on the bird’s right wing still rather short? I fancy it is.

A clear shot of the upper-wing pattern also showing the solid tail band of this species at this age.

This adds to my recent comments that while Herring Gulls average larger than Lesser Black-backed Gulls there is considerable variation compounded by males averaging larger than females. This adult Herring Gull seems almost dwarfed by the immature Lesser Black-backed Gull behind it.

Here are two adults helpfully sitting at the same angle. The Herring Gull again seems somewhat smaller than the accompanying adult Lesser Black-backed Gull. It is typical that the Herring Gull’s bill seems more robust.

Better light on this Grey Wagtail today. Not a hint of black on the chin or breast.

I know I have seen this species of spider before. I am inclined to think it is a species in the genus Tetragnathidae - Long-jawed orb-weaver spiders, though most photos of these spiders on the web do not shot such prominent palps.

(Ed Wilson)

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The Flash:  09:00 – 09:40

(217th visit of the year)

One of those mornings when it is all happening here:
- Three duck Gadwall were new in and first of the season.
- As I arrived very many Tufted Ducks were flying about and at least 16 of them flew off E not to return, giving a bumper total.
- At the same time three brownhead Goosanders took off and left to the N. About five minutes later what I assume were the same birds were flying N overhead and then a few minutes later approached from the W and appeared to circle to arrive, though I never saw them again. These too the first of the season hear.
- A Cormorant was fishing apparently unfazed by the fishermen and dog-walkers (or my camera). Not seen any here for a while.
- A female (on size) Peregrine shot through from the N end, without anyone apart from one Coot that dived for cover (and me) noticing.

Other notes from here:
- Yet another different hybrid goose with even more white on the face and neck. And a very noisy bird too. The family of five Greylag x Canada Geese again.
- Even more Mallard ‘missing’. Talking with some of the residents they suggest that the notices asking people not to feed bread to the ducks means they no longer get fed at all and have moved away.
also
- 4 Dicranopalpus ramosus harvestman on their usual lamp pole.

Birds noted flying over / near The Flash:
- 1 female Peregrine
- 3 Wood Pigeons
- 3 Jackdaws

Hirundines etc. noted:
- House Martins heard but not located.

Warblers noted (singing birds):
- 2 (0) Chiffchaffs

Counts from the water:
- 3 Mute Swans
- >44 Greylag Geese
- 6 Greylag x Canada Geese
- >107 Canada Geese
- 3 (0♂) Gadwall
- 14 (6♂) Mallard only
- 56 (>8♂) Tufted Ducks: 16 of these flew off.
- 3 (0♂) Goosanders
- 1 Cormorant
- 2 Great Crested Grebes again
- 4 Moorhens
- 14 Coots again
- 18 Black-headed Gulls: at least four of these a first-winter birds
- 1 Lesser Black-backed Gull: adult

The noisy hybrid goose having a good honk. The bill and face most closely resemble a juvenile Bar-headed Goose – there are a number of these escapees from collections free-flying in the area. But there the resemblance ends. No recognised species of goose has a white-flecked black neck; neither does any show a neck that become red-brown at the base. The body is rather blacker than most species of geese. Tis a mystery. Should get a sample and see what DNA analysis says? If I could be bothered to fund the result...

One of the three duck Gadwall that were new in today. A more delicate-looking bird than a Mallard but not ‘small-looking’ as a Teal would be. Note the extensive orange edging to the bill, obviously more extensive than on a duck Mallard.

A photo ready to submission to an advanced class in bird recognition. All too often the result of trying to photo ....

.... a fishing Cormorant.

(Ed Wilson)

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On this day..........
2017
Priorslee Lake
Today's Sightings Here

2015
Priorslee Lake
Today's Sightings Here

2011
Priorslee Lake
Kingfisher
Common Sandpiper
(Ed Wilson)

2008
Priorslee Lake
Wigeon
Water Rail
(Ed Wilson)

2007
Priorslee Lake
Kingfisher
(Ed Wilson)