31 Jul 26

Priorslee Balancing Lake and The Flash

10.0°C > 18.0°C: Clear to the East and South early. An area of cloud soon arrived from the West before clearing again after 07:30 to wall-to-wall blue. A few puffy clouds after 09:15. Initially flat calm with a light westerly breeze developing. Very good visibility.

Sunrise: 05:25 BST

* = a species photographed today
! = a first sighting of the species this year
$ = a new species for me in this area

Priorslee Balancing Lake: 04:45– 06:10 // 07:15 – 09:30

(171st visit of the year)

Bird notes:
- no third Mute Swan today.
- at 05:15 I noted 14 Mallard flying off East; 20 adults and the four juveniles on the water. How these relate to the 51 I counted on the south-west grass and the water at 07:45 is hard to say!
- the Great Crested Grebes were typically problematic, moving around and diving. There seemed to be a fourth pair with two young, some days old, in the more difficult to view south-west area. Also the two now independent juveniles from different broods were spending time together (or close-by).
- a single Swift was briefly over the East end at 05:30. A trio was over the South side for a while c.07:45.

Bird(s) noted flying over here:
- 12 Canada Geese: ten flew East together; two flew West together.
- 49 Greylag Geese: 29 flew East in two groups; 20 flew West in two groups.
- 8 Black-headed Gulls
- 1 Herring Gull
- 8 Lesser Black-backed Gulls
- 32 Feral Pigeons flew West as an all-white single and groups of eight and 23
- 4 Stock Doves flew West as two singles and a duo
- 84 Wood Pigeons
- 159 Jackdaws
- 53 Rooks

Counts from the lake area:
- 6 Canada Geese: arrived together
- 12 Greylag Geese: 10 departed together followed by two singles
- 5 Mute Swans: see notes
- 51 (?♂) Mallard: see notes
- 1 (?♂) Tufted Duck
- 6 Moorhens
- 67 Coots
- 6 + 10? (5 broods) Great Crested Grebes: see notes
- 23 Black-headed Gulls
- 7 Lesser Black-backed Gulls
- 1 Kingfisher

Hirundines etc. noted:
- 4 Swifts: see notes
- 2 Barn Swallows
- 3 House Martins

Warblers noted (no song):
- 5 Chiffchaffs
- 1 Reed Warbler only
- 4 Blackcaps

Also noted:
cooler than of late: very dry

Butterflies:
- 1 Green-veined White Pieris napi
- 1 Meadow Brown Maniola jurtina
- 4 *Gatekeeper Pyronia tithonus

Moths:
- 5 Straw Grass-moth Agriphila straminella [was Straw Grass-veneer]

Bees, wasps etc.:
- Honey Bee Apis mellifera
- *Red-tailed Bumblebee Bombus lapidarius
- Common Carder Bee Bombus pascuorum
- Buff-tailed Bumblebee Bombus terrestris : just one; also one unidentified fly-by of a bumblebee
- Common Wasp Vespula vulgaris

Hoverflies:
- Common Dronefly Eristalis tenax
- *Dead-head Hoverfly Myathropa florea [Common Batman Fly]
- *Wasp Plumehorn Volucella inanis [Lesser Hornet Hoverfly]
- Pellucid Fly Volucella pellucens [Pied Plumehorn; Great Pied Hoverfly]
- *Hornet Hoverfly Volucella zonaria [Hornet Plumehorn]

Damsel / Dragon-flies:
- *Black-tailed Skimmer Orthetrum cancellatum
- *Common Darter Sympetrum striolatum
also another species of dragonfly seen in flight only

True flies:
- long-legged fly Dolichopus sp.
- Greenbottle Lucilia sp.
- *Scorpion Fly Panorpa sp.
only a few unidentified flies

Bugs:
none

Beetles:
none

Spiders, harvestmen etc.:
- *White Crab Spider Misumena vatia [Flower Spider]

On the West end street lamp poles around dawn:

Moths:
- 1 !*Common Grass-moth Agriphila tristella [previously Common Grass-veneer]

It seems a long while since I managed to photograph an almost full moon. This is the just waning Buck Moon, the eighth full moon of 2026. It was full at 15:36 on Wednesday.

The number of butterflies is declining fast. Those that are still flying are looking care-worn as epitomised by this Gatekeeper Pyronia tithonus.

A new moth for the year on a street lamp pole pre-sunrise. It is a Common Grass-moth Agriphila tristella.

"Brothers in Arms?" Two Red-tailed Bumblebees Bombus lapidarius share one of the few extant Knapweed flowers.

Not many hoverflies again today: mostly singletons once more. This Common Dronefly Eristalis tenax has more orange-brown on the abdomen than many. A variable feature on many Eristalis species.

It is some weeks since I saw my previous Dead-head Hoverfly Myathropa florea.

This is a Wasp Plumehorn Volucella inanis, a species where all three bands across the abdomen are yellow...

...more clearly seen here.

A Hornet Hoverfly V. zonaria with the upper band on the abdomen orange rather than yellow.

Close up and personal with a different Hornet Hoverfly.

One of three species of dragonfly I noted today. Only two photographed and therefore only two identified. This is a Black-tailed Skimmer Orthetrum cancellatum.

And this is a male Common Darter Sympetrum striolatum. Much redder than the individual I photographed a few days ago. The body (but not the thorax) will become bright red as it ages – provided it survives that long.

Another insect I have not recorded for several weeks: a Scorpion Fly Panorpa sp. This is a female because the tail-tip does not curl around to appear shaped like a scorpion's sting.

Probably the same White Crab Spider Misumena vatia I photographed a few days ago.

(Ed Wilson)

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In the Priorslee Avenue tunnel:

Moths:
- 1 $ *White-speckled Fungus Moth Nemapogon koenigi
- 1 *Red Underwing Catocala nupta

Flies:
- no midges!
- 1 female presumed Pond Olive mayfly Cloeon dipterum

Arthropods:
none

Spiders, harvestmen etc.:
- 3 Missing Sector Orb-web Spider Zygiella x-notata [Silver-sided Sector Spider]

I found two species of moth in the tunnel. I believe this to be a White-speckled Fungus Moth Nemapogon koenigi. It is a new species for me and is noted as uncommon in the West Midlands.

Another view of this micro-moth from the side. I am sending these photos to the Shropshire recorder for confirmation though checking Obsidentify's positive suggestion against the West Midlands moths web site and the Field Guide leaves me in little doubt.

Very much not a micro-moth was this, my second Red Underwing Catocala nupta of the year, unhelpfully silhouetted against one of the strip lights that, vaguely, illuminate the tunnel.

(Ed Wilson)

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The Flash: 06:15 – 07:10

(169th visit of the year)

Bird notes:
- 18 Mute Swans when I arrived. One flew off West.
- no Mallard duckling seen.
- a Great Crested Grebe was seen at the top end. Ten minutes later it, or another, was back at the bottom end where I usually see one.
- the Little Egret still here. Also the Grey Heron again.
- a fly-over Pied Wagtail heard only. This species is much less common than it was a few years ago.

Bird(s) noted flying over here:
- 2 Jackdaws
- 1 Pied Wagtail

Noted on / around the water:
- 18 Canada Geese
- 2 Greylag Geese
- 18 Mute Swans: one departed: see notes
- 29 (?♂) Mallard
- 3 (?♂) Tufted Duck
- 8 *Moorhens again
- 49 Coot
- 1? Great Crested Grebe: see notes
- 21 Black-headed Gulls
- 1 Grey Heron again
- 1 Little Egret again

Hirundines etc. noted:
- 2 House Martins

Warblers noted (no song):
- 2 Chiffchaffs

Nothing of note around the area:

I do believe this Moorhen has taken over a Coot nest and looks to be brooding eggs or young.

(Ed Wilson)