7.0°C > 11.0°C: Low overcast. Visibility at low level was OK but at any height not good. Very light mainly south-easterly breeze.
Sunrise: 07:05 GMT
* = a species photographed today
! = a first sighting of the species this year
$ = a new species for me in this area
Priorslee Balancing Lake: 05:50 – 09:10
(242nd visit of the year)
Trusty vehicle operational and back to "normal".
Bird notes:
- two Canada Geese throughout sometimes on the dam-top. Perhaps the pair that nested here last year?
- no sign of any Mute Swans.
- *four Goosanders flew West at 08:00.
- only three Great Crested Grebes again.
- c.300 Black-headed Gulls were on the water c.06:30. When I checked the football field at 09:10 there were 21.
- >350 large gulls were present at 06:30 with some others having already flown off. At least Herring Gulls were noted at this time.
- later gull arrivals were just three Herring and 79 Lesser Black-backs. Small numbers also overhead.
- four Cormorants arrived together at the early time of 07:00. Later a single and then a trio also arrived. A group of five flew over.
- *a Great White Egret flew East at 07:35.
- five small parties of Wood Pigeons totalling 183 birds flew South around 07:30 then no more seen until a large group of at least 270 at 08:10.
- three separate large parties of Jackdaws were part of the roost dispersal flying low overhead and spread-out making in possible only to estimate the number of birds. The total below is likely under-recorded.
- six parties of Redwing seen overhead. Two of these parties were mixed in with departing Jackdaws and Rooks (confusing): and another with one of the Wood Pigeon parties.
- at least 100 Starlings were noted in three groups swirling around as they orientated West after leaving separate(?) roosting sites around the water.
Bird(s) noted flying over here:
- 4 (0♂?) *Goosander: see notes
- 1 Herring Gull
- 19 Lesser Black-backed Gulls
- 5 Cormorants: together
- 1 *Great White Egret
- >450 Wood Pigeons: see notes
- >560 Jackdaws
- 264 Rooks
- 53 Redwings
Counts from the lake area:
- 2 Canada Geese
- 16 (9♂) Mallard
- 51 (29?♂) Tufted Duck
- 4 Moorhens
- 23 Coots
- 3 Great Crested Grebes again
- >300 Black-headed Gulls
- 18 Herring Gulls
- >425 Lesser Black-backed Gulls
- 8 Cormorants
- 2 Grey Herons: one of these departed
[I omitted to tabulate the two Mute Swans yesterday: not here today]
Birds seen leaving roosts around the lake:
- c.100 Starlings
Found later on the Teece Drive fence
Moth/Butterfly/Sawfly?:
- 1 *unidentified caterpillar
- 1 *unidentified caterpillar
Beetles:
- 1 *larva of a Harlequin Ladybird Harmonia axyridis
- 1 *ladybird pupa
- 1 *beetle?
- 1 *larva of a Harlequin Ladybird Harmonia axyridis
- 1 *ladybird pupa
- 1 *beetle?
Spiders, harvestmen etc.:
- 1 *Walnut Orb Weaver Nuctenea umbratica
- 1 *harvestman from the species pair Dicranopalpus ramosus / D. caudatus
Elsewhere:
- 1 *Walnut Orb Weaver Nuctenea umbratica
- 1 *harvestman from the species pair Dicranopalpus ramosus / D. caudatus
Elsewhere:
Fungus:
- just the same as yesterday including *Shaggy Inkcap or Lawyer's Wig Coprinus comatus
On the West end street lamp poles before dawn:
- just the same as yesterday including *Shaggy Inkcap or Lawyer's Wig Coprinus comatus
On the West end street lamp poles before dawn:
Moths:
- 8 November Moth type Epirrita sp.
- 8 November Moth type Epirrita sp.
True flies:
- 2 winter cranefly Trichocera sp.
- 2 winter cranefly Trichocera sp.
Springtails:
- 1 globular springtail sp., probably Dicyrtomina saundersi
- 1 globular springtail sp., probably Dicyrtomina saundersi
Arthropods:
- 1 *White-legged Snake Millipede Tachypodoiulus niger
- 1 *White-legged Snake Millipede Tachypodoiulus niger
Spiders, harvestmen etc.:
- 1 harvestman Paroligolophus agrestis
An unusual day-time gathering of 12 Magpies (and a Carrion Crow) near the community football pitch. I note groups of Magpies this size when there are many recently-fledged juveniles: this species uses communal roost sites. I cannot recall a daytime sight like this at any other time.
- 1 harvestman Paroligolophus agrestis
One of a group of four Goosanders. This one a brownhead: they probably all were.
A Great White Egret flies over.
An unusual day-time gathering of 12 Magpies (and a Carrion Crow) near the community football pitch. I note groups of Magpies this size when there are many recently-fledged juveniles: this species uses communal roost sites. I cannot recall a daytime sight like this at any other time.
On the Teece Drive fence I found this caterpillar. Obsidentify thought it was a Coypu! Google Lens suggested it was a sawfly larva. These have six or more pairs of prolegs (stubby leg-like structures under the abdomen) and can be distinguished from caterpillars of butterflies and moths which only have five or fewer. Whether Google Lens has resolved my photo or is guessing I have no idea. A scan of all the caterpillar and larvae photos in NatureSpot has not helped.
Also on the Teece Drive fence I found this what I believe to be a ladybird pupa. All attempts to get an ID have failed. If I type "UK ladybird pupae" in to Google all I get are guides to the larvae.
This I do know: the larva of a Harlequin Ladybird Harmonia axyridis.
The White-legged Snake Millipede Tachypodoiulus niger I found on a street lamp pole today.
Yes, well.... Covered in dew, but what is it? Small bright red eyes and long, angled antennae held swept back.
Well hidden in a knot-hole in the Teece Drive fence was this Walnut Orb Weaver spider Nuctenea umbratica.
A harvestman from the species pair Dicranopalpus ramosus / D. caudatus and one with only six extant legs. #2 is missing from the left and #4 from the right.
Day three of the Shaggy Inkcap fungus Coprinus comatus. Not yet dripping liquid but looking sad.
(Ed Wilson)
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In the Priorslee Avenue tunnel:
Moths:
none
none
True flies:
- 3 midges
- 4 winter cranefly Trichocera sp.
- 3 midges
- 4 winter cranefly Trichocera sp.
Arthropods:
- 1 Common Shiny Woodlouse Oniscus asellus
- 2 White-legged Snake Millipede Tachypodoiulus niger
- 1 Common Shiny Woodlouse Oniscus asellus
- 2 White-legged Snake Millipede Tachypodoiulus niger
Spiders, harvestmen etc.:
- 5 Missing Sector Orb-web Spider Zygiella x-notata [Silver-sided Sector Spider]
(Ed Wilson)
The Flash: 09:15 – 10:40
- 5 Missing Sector Orb-web Spider Zygiella x-notata [Silver-sided Sector Spider]
(Ed Wilson)
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The Flash: 09:15 – 10:40
(239th visit of the year)
Bird notes
*A moulting / first-winter drake Shoveler was a new arrival and the first record of this species for me here in 2026. My first recent year when I have not recorded this species during the first-winter period. Bird species #74 here.
Other bird notes:
- still just the single adult Mute Swan. It made several short flights within the confines of the water.
- no Little Grebe seen.
- only a single adult Great Crested Grebe noted. Where have they gone? I have never seen the juveniles flying.
- 14 *Cormorants noted! Some of these flew off.
- more gulls than recently.
- a Sparrowhawk powered through.
Bird(s) noted flying over here:
- 6 Lesser Black-backed Gulls
- 1 Sparrowhawk: sex not determined
Noted on / around the water:
- 4 Canada Geese
- 1 Mute Swan
- 1 (1♂) *Shoveler
- 48 (30♂) *Mallard
- 23 (>12?♂) Tufted Duck
- 7 Moorhens
- 14 Coot again
- 1 Great Crested Grebe only
- 74 *Black-headed Gulls
- 2 *Herring Gulls
- 4 Lesser Black-backed Gulls
- 2 Grey Herons
- 14 *Cormorants
Noted around the area:
Moths:
- 1 *November Moth type Epirrita sp.
- 1 *November Moth type Epirrita sp.
Bees, wasps etc.:
- >30 wasps Vespula sp. A good number in dull conditions.
- >30 wasps Vespula sp. A good number in dull conditions.
Beetles:
- 2 *7 Spot Ladybird Coccinella 7-punctata
- 2 *7 Spot Ladybird Coccinella 7-punctata
Spiders, harvestmen etc.:
- 1 harvestman Opilio canestrinii: as yesterday
One smart drake and one not so smart-looking fly-in. Usually the Mallard ignore me as they know I have no food. Today I was wearing a different jacket. Did they not recognise me?
- 1 harvestman Opilio canestrinii: as yesterday
As I approached the water Mallard seemed to arrive from everywhere. Here is a drake arriving.
And appearing to be standing on thin air!
One smart drake and one not so smart-looking fly-in. Usually the Mallard ignore me as they know I have no food. Today I was wearing a different jacket. Did they not recognise me?
As usual drakes outnumbered ducks.
And it was not only Mallard that were hoping to be fed! 21 Black-headed Gulls.
A distant view of the drake Shoveler. This species seems to attain breeding plumage much later than Mallard. It will have orange flanks and the full-length wing feathers will cover the blue speculum seen here.
No wonder the bridge is falling down. 46 Black-headed Gulls standing on the hand-rails.
A first-winter Herring Gull leaps out of the water. The Cormorant behind is not interested.
Diving back in head-first.
Count them! There are twelve Cormorants in the trees here – the hardest one to recognise is very top left. There were two more standing on tree-roots around the island. The fishermen will be happy!
A November Moth type Epirrita sp. high up on a street lamp pole in squirrel alley.
Friendly 7 Spot Ladybirds Coccinella 7-punctata.
(Ed Wilson)
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2013
Candles Landfill Site
2nd winter Caspian Gull
8 Yellow-legged Gulls
Great Black-backed Gull
c.700 Lesser Black-backed Gulls
(Tom Lowe)
2010
Priorslee Lake
Chiffchaff
Mistle Thrush
29 Fieldfares
32 Redwings
13 Siskins
3 Linnets
(Ed Wilson)
2009
Priorslee Lake
1 Shoveler
5 Wigeon
(John Isherwood)
2005
Trench Pool
2 Goosander
10 Shoveler
(John Isherwood)


































































