15 Sep 20

Priorslee Lake and The Flash

13.0°C > 18.0°C: Clear start. Medium level cloud for a while between c.07:00 and c.09:00 and thereafter rather hazy sun. Calm. Good visibility if somewhat hazy.

Sunrise: 06:45 BST

* = a photo today.

Priorslee Lake: 05:15 – 09:28

(193rd visit of the year)

Bird notes:

- 1 Common Kestrel flew low W over the football field at 06:50 – none of the Black-headed Gulls or Wood Pigeons seemed to notice (or care).

- 144 Lesser Black-backed Gulls flew SE between 06:12 and 06:45. Of these 89 flew over and 55 stopped off briefly at the lake. Rather few 'going the other way' later.

- 'A small number' of House Martins heard high over the football field at 06:45 but not located. Just 4 seen high over the W end of the lake 09:10.

- Two Blackcaps quietly singing. One of these seen.

- All 23 Meadow Pipits passed before 07:05 and on a broad front. I likely missed many.

- After several weeks with no Reed Bunting records, today one was calling pre-dawn at the W end.

Birds noted flying over / near here:

- 40 Canada Geese (17 outbound in three groups; singleton inbound; 22 flew N to far E)
- 1 Common Buzzard
- 1 Common Kestrel
- 104 Lesser Black-backed Gulls
- 60 Wood Pigeons, exactly
- 1 Collared Dove
- 5 Jackdaws
- 1 Rook
- 31 Starlings (three groups)
- 6 Pied Wagtails
- 23 Meadow Pipits
- 1 Chaffinch
- 1 Siskin

Hirundines etc. logged:

- 4 House Martins

Count of warblers logged (singing birds in brackets):

- 8 (4) Chiffchaffs
- 7 (2) Blackcaps

Counts from the lake area:

- 2 + 5 Mute Swans
- 2 Greylag Geese: flushed off 05:30.
- 14 (9♂) Mallard
- 1 (1♂) Tufted Duck
- 1 Cormorant: arrived
- 1 Grey Heron
- 16 + 7 (5 broods) Great Crested Grebes
- 9 adult and juvenile Moorhens
- 86 adult and juvenile Coots
- 59 Black-headed Gulls
- 71 Lesser Black-backed Gulls
- 1 Yellow-legged Gull

Birds on the football and academy playing fields c.06:50:

[Wood Pigeons and Magpies excluded]

- 62 Black-headed Gulls on the football field
- 49 Black-headed Gulls on the academy playing fields

On / around the street lights etc. pre-sunrise:

Moths:

- 1 Narrow-winged Grey (Eudonia angustea): moth species #99 here this year
- 1 Vapourer (Orgyia antiqua): moth species #100 here this year and a new species for me.
- 1 Square-spot Rustic (Xestia xanthographa)

Other things:

- >10 Chironomus plumosus (plumed midges)
- 1 Common European Earwig (Forficula auricularia)
- 3 Common Wasps (Paravespula vulgaris)
- 5 Orb-web spider, presumed Larinioides sclopetarius
- 1 Opilio-type harvestman

Insects / other things etc. noted later:

Not enough power in the hazy sun to get many things flying

- Green-veined White butterfly (Pieris napi)
- Common Wasp (Paravespula vulgaris)
- Marmalade Hoverfly (Episyrphus balteatus)

Mammals

- 3 Pipistrelle-type bats
- 1 Grey Squirrel

I have three theories about the lower number of bats:

- it was a very light morning and they had already gone to roost.

- the calm conditions meant they were not hugging the lee of the N side trees and were scattered around more where I could not see them.

- the atmospheric conditions were reflecting the road noise badly and this was preventing them from echo-locating properly.

Additional flowering plant species recorded for the year at this site:

- Wood Dock (Rumex sanguineus): no photo as yet – was about to and got distracted!

The rather hazy pre-sunrise

The sun now up.

A first-winter Black-headed Gull showing its top side. Note the black band on the tail has small white tips at this age. I suspect there will wear off during the winter.

I thought this was a washed-out Lesser Black-backed Gull at the time. The photo reveals it is too pale. It is a third-winter Yellow-legged Gull (no yellow legs at this age and time of year), best identified by the dark on the primary coverts and three primaries showing 'mirrors' (white spots). Contorted as it does what would be called an 'engine-running refuel' in aircraft terminology.

Bit like #11 buses: wait for ages and then two come along. Another flight shot of a Magpie.

New moth for the year and species #99 here in 2020. It is a Narrow-winged Grey (Eudonia angustea). This was flying around, it stopped briefly on lamp post, and was gone.

Definitely moth of the day and running the Black Arches close as moth of the year, especially as I have never seen one before. It is a male Vapourer (Orgyia antiqua). There is a clue to the sex in the very prominent antenna but in fact the females are almost wingless and stay by the cocoon after they emerge. Males using their antennae to locate the female by pheromones. Amazing front legs. A suitable moth as my species #100 here in 2020. Look out for those spiders!

(Ed Wilson)

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The Flash: 09:31 – 10:25

(177th visit of the year)

Bird notes:

- All the Mute Swan cygnets present.

- What I have logged as a Greylag x Canada Goose was tucked inside the island. From what I could see the body looked darker than either of these species and I wonder about its parentage. The head and bill marks fit OK. If it comes out in the open will look harder.

- Very late records of two Swifts passing. I have the two Pied Wagtails flying over to thank for the Swifts. The wagtails called as they flew, I looked up, and there were the Swifts as well.

- The Meadow Pipits were at least three hours after I logged any of the birds flying over the lake.

Birds noted flying over / near The Flash:

- 1 Lesser Black-backed Gull
- 2 Jackdaws
- 2 Pied Wagtails
- 3 Meadow Pipits

Hirundines etc. logged:

- 2 Swifts
- 2 House Martins

Count of warblers logged (singing birds in brackets):

- 2 (1) Chiffchaffs

Counts from the water:

- 3 + 7 (1 brood) Mute Swans: cygnets found!
- 7 Greylag Geese
- 1 Greylag x Canada Goose (see notes)
- 19 Canada Geese
- 31 (15♂) Mallard
- 46 (12?♂) Tufted Duck again
- 2 Great Crested Grebes
- 10 adult and juvenile Moorhens
- 60 adult and juvenile Coots only
- 7 Black-headed Gulls

On the lamp poles:

Nothing noted 

Elsewhere:

Butterflies:

- Speckled Wood (Pararge aegeria)

Bees / wasps:

- Honey Bee (Apis mellifera)
- Buff-tailed Bumblebee (Bombus terrestris)
- Common Wasp (Vespula vulgaris)

Spiders:

- Garden Spider (Arameus diadematus)

Mammals:

- 1 Grey Squirrel

Nasty! I do hope this is some strange moult effect on the male Blackbird and not a nasty disease.

(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

2013
Priorslee Lake
Green Sandpiper
9 Ravens
(Ed Wilson)

2010
Priorslee Lake
Mallard x Pintail
Raven
2 Sand Martin
(Ed Wilson)

2008
Priorslee Lake
100+ hirundines
31 Pied Wagtails
Redwing
14 Chiffchaffs
7 Siskins
(Ed Wilson)