9 Jul 20

Priorslee Lake and The Flash

14.0°C > 15.0°C: Low cloud with periods of drizzle. Just one brighter spell. Calm / light SW breeze. Very good visibility but only moderate at best in drizzle.

Sunrise: 04:58 BST

NB: * means there is a photo today.

Priorslee Lake: 04:24 – 06:05 // 07:00 – 09:15

(132nd visit of the year)

After an invasion of wild-swimmers about 10 days ago Severn-Trent erected several signs saying "No Swimming and No Rubber Dingies" to supplement the existing signs noting that unauthorised entry in to the water is not permitted. Somewhat predictably these new signs have been torn down and thrown in to the lake.

Bird notes:
- A Gadwall, probably an eclipse drake, flew in at 08:00 and joined the Mallard. I could not re-find it later.
- A Common Buzzard heard calling from the Ricoh copse. Perhaps they are nesting here again this year.
- Four Common Sandpipers. Probably my highest-ever post-breeding count – return passage is usually singles or duos at most.
- Only four Black-headed Gulls made it to the lake. As I left to walk to The Flash there were 14, including one juvenile) on the football field. These flushed when the first dog-walker arrived and decamped to the academy playing field.
- Hard to know how many Swifts there were. A single; then a duo; then four together but between times none. Different birds?
- Not a single Jackdaw or Rook seen or heard.

Birds noted flying over / near here:
- 1 Stock Dove
- 19 Wood Pigeons
- 1 Collared Dove again
- no Jackdaws or Rooks

Hirundines etc. logged:
- 4+ Swifts

Count of warblers logged (singing birds in brackets):
Blackcaps do not like wet weather!
- 13 (9) Chiffchaffs
- 6 (3) Blackcaps
- no Garden Warblers
- 7 (3) Common Whitethroats
- 7 (6) Reed Warblers

Counts from the lake area:
- 2 + 5 Mute Swans
- 1 (?♂) Gadwall: arrived
- 18 (?♂) Mallard again
- 1 Grey Herons
- 1 Little Grebe: heard only
- 8 Great Crested Grebes
- 6 + 2 (2 broods) Moorhens
- 33 + 12 (7 broods) Coots
- 4 Common Sandpipers
- 4 Black-headed Gulls: all adults (see notes)

On / around the street lights etc. pre-sunrise:
- 1 Garden Grass-veneer moth (Chrysoteuchia culmella)
- 1 Lacewing (Micromus variegatus)
- *1 Dicranopalpus sp. harvestman
- 1 Oligolophus sp. harvestman
- 2 orb-web spider sp.

On the wall of the academy beside the security lights:
- 1 Garden Grass-veneer moth (Chrysoteuchia culmella)
- 1 Little Emerald (Jodis lactearia)
- 1 Common Footman (Eilema lurideola)
- 1 Common Green Lacewing (Chrysoperia carnea)

Insects / other things etc. noted later

An impressive tally in the dull and drizzly conditions:

Butterflies:
- Green-veined White (Pieris napi)
- Red Admiral (Vanessa atalanta)

Moths:
- Common Grey (Scoparia ambigualis)
- Unidentified grass moths – all went and hid!
- Shaded Broad-bar (Scotopteryx chenopodiata)

Bees / wasps:
- *Garden Bumblebee (Bombus hortorum)
- *Red-tailed Cuckoo Bee (Bombus rupestris)
- *Buff-tailed Bumblebee (Bombus terrestris)
- Common Wasp (Vespula (Paravespula) vulgaris)

Damsel-/Dragon-flies:
None

Hoverflies:
- *Pied Hoverfly (Scaeva pyrastri)

Bats:
None

Other things:
- Potato Capsid (Closterotomus norwegicus)
- Common Froghopper (Philaenus spumarius)
- Harlequin Ladybird (Harmonia axyridis): pupae only
- 7 Spot Ladybird (Coccinella 7-punctata)
- *Rough-Haired Lagria Beetle (Lagria hirta)
- Common Red Soldier Beetle (Rhagonycha fulva)
- *Oak galls of the Red Pea Gall Wasp (Cynips divisa)
- *Pleated Inkcap (Parasola plicatilis) formerly Japanese Umbrella Toadstool (Coprinus plicatilis)

Additional flowering plant species recorded for the year at this site:
- Scentless Mayweed (Matricaria perforata)

Two of the four Common Sandpipers in the dull early light.

Another low-light special. Juvenile Black-headed Gulls do not look much like their parents. Most of the brown will soon be replaced, the hind-neck being the last to lose the colour.

A soggy-looking Common Whitethroat alongside a soggy-looking spider's web while the drizzle comes down. Don't you just love British summers.

An equally soggy-looking and moulting Dunnock.

Blackbirds are very prone to the odd white feather. With a yellow bill this has to be a female rather than an immature. Not noticed it previously.

With a distinctly lemon yellow collar and no hint of buff on the border of the white tail this seems to be a Garden Bumblebee (Bombus hortorum). Whilst reading up on how to separate this species from White-tailed Bumble Bee (Bombus lucorum) I noted that the latter is very rare in this part of England so I have probably misidentified them in the past.

A very soggy-looking bumblebee.

I suspect this is a male Red-tailed Cuckoo Bee (Bombus rupestris). Separation from males of Red-tailed Bumblebee (B. lapidarius) is difficult. My diagnosis is on the basis of the rather 'bald' look to the thorax. However that could be because it is wet. I cannot explain why the legs appear so fluffy.

At last: a fairly easy bumblebee. The buff border ahead of the white tail with an orange-toned collar point to Buff-tailed Bumblebee (Bombus terrestris).

When they are sitting like this then Pied Hoverflies (Scaeva pyrastri) are easy.

With wings closed more difficult.

An amazingly marked froghopper. On the basis that the legs are at toward the front of the body this is looking right. On size it has to be Aphrophora alni.

This is the work of the Red Pea Gall Wasp (Cynips divisa). An apposite name. As with most gall wasps the insects are rarely seen. The wasp has two generations the second of which - the agamic - consists only of females and it is this generation that produces these galls. The other, sexual generation of the wasp produces quite different galls on the buds of Oak. How anyone found this out is quite beyond me - I guess you put the galls with food in a container and observe.

This is a better photo of the beetle Lagria hirta which I now know (thanks to Martin Adlam) to have the vernacular name Rough-Haired Lagria Beetle.

This is one of the Dicranopalpus sp. of harvestmen. Until recently they were all Dicranopalpus ramosus but these harvestmen with forked pedipalps can be identified – using a microscope – as one of two species, D. ramosus or D. caudatus. No way for me to tell so Dicranopalpus sp. it is.

This delicate fungus seems now to be called Pleated Inkcap (Parasola plicatilis). Previously I have recorded it as the Japanese Umbrella Toadstool (Coprinus plicatilis). So the 'umbrella' bit is transferred from the vernacular name to the scientific name. Most odd.

Almost transparent.

I am sure these berries are from what I have called, on the basis of the flowers, a Wayfaring-tree (Viburnum lantana). The berries don't match those in my Flora that are shown as red, turning black. The leaves are rather too glossy. Perhaps a Viburnum cultivar?

(Ed Wilson)

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The Flash: 06:10 – 06:55

(118th visit of the year)

Drizzle at about its worst here keeping Moorhens and Coots in hiding.

Other bird notes:
- Both Mute Swan parents were loosely with the cygnets and were also consorting with a group of Canada Geese. Strangely the cob seemed quite happy with this arrangement.
- The Canada goslings missing again.
- The group of seven Mallard that I suspected were a full-grown family group went for an extended fly-about adding credence to the theory.
- The male Reed Bunting was still in full voice at the top end.

Birds noted flying over / near The Flash:
- 1 Stock Dove

Hirundines etc. logged:
None

Count of warblers logged (singing birds in brackets):
- 2 (2) Chiffchaffs still
- 1 (1) Blackcap

Counts from the water:
- 3 + 7 (1 brood) Mute Swans
- 70 Greylag Geese
- 1 Greylag x Canada Goose
- 112 Canada Geese
- 12 (?♂) Mallard (see notes)
- 14 (12?♂) Tufted Duck
- 2 + 2 (1 brood) Great Crested Grebes again
- 2 Moorhens
- 6 + 8 (? broods) Coots

Otherwise of note, on lamp pole:
- *1 Little Grey moth (Eudonia lacustrata)


9185P This seems to be a Little Grey moth (Eudonia lacustrata). Always a difficult group to identify.

(Ed Wilson)

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Between the lake and The Flash:

Of note
- *1 Phoenix moth (Eulithis prunata) on the roof of the Priorslee Avenue tunnel.

This moth found on the roof of the Priorslee Avenue tunnel is a Phoenix (Eulithis prunata). Only my second record in the area of this common species.

(Ed Wilson)

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On this day..........
2019
Priorslee Lake
Today's Sightings Here

2015
Priorslee Lake
Today's Sightings Here

2014
Priorslee Lake
Today's Sightings Here

2012
Priorslee Lake
Grasshopper Warbler reeling
(Ed Wilson)