23 Oct 24

Priorslee Balancing Lake and The Flash

7.0°C > 10.0°C: Mist and low cloud at the Balancing Lake. Clearing somewhat at The Flash. Light southerly wind. Poor visibility early: moderate later at The Flash.

Sunrise: 07:51 BST

* = a species photographed today.

Priorslee Balancing Lake: 06:10 – 09:15

(225th visit of the year)

Very little could be seen in the mist.

Some words of caution about using ID apps on smartphones. You will have read my comments about some of the bizarre suggestions that Obsidentify comes up with. Today I was using the Merlin bird-ID app to confirm it was a Goldcrest that I was hearing and not a Firecrest. These to my ears sound very similar, at least in part because I do not hear Firecrest very often. During the brief period I was using Merlin it told me there was a Song Thrush singing: there wasn't - it was part of a Robin song. It also told me there was a Chaffinch when it was a Great Tit - which admittedly do make many different calls. Most bizarrely it recorded a Peregrine Falcon when it was several Lesser Black-backed Gulls calling. So beware. We have nothing to fear from AI have we!

Bird notes:
- this will be the last day this year for the "Warblers noted" heading. I suspect that any Chiffchaffs still present are now silent and will only be seen by chance. I will specifically note any that I see. Meanwhile the Cetti's Warbler will likely stay all Winter and I will only note it if it does something unusual or appears to have gone.

Counts of birds noted flying over:
Only birds flying more or less directly overhead could be seen. For what it is worth...
- 1 Wood Pigeon
- 4 Jackdaws: one group too tight to specifically count
- 14 Rooks
- 2 Pied Wagtails

Birds seen leaving roost around the lake:
None

Warblers noted (the figure in brackets relates to birds heard singing):
- 1 (1) Cetti's Warbler

Counts from the lake area:
- 12 Canada Goose: throughout
- 19 Mute Swans
- 2 (1♂) Mallard
- 7 (2♂?) Tufted Duck
- 4 Moorhens
- no count of Coots attempted
- 4 Great Crested Grebes
- c.25 Black-headed Gulls
- c.15 Herring Gulls
- c.125 Lesser Black-backed Gulls
- 1 Grey Heron
- 1 Kingfisher

Noted on the street lamps poles pre-dawn:

Moths:
- *10 November Moth-types Epirrita dilutata agg.

Lacewing:
- *1 presumed small lacewing

Springtails:
- *2 springtails Pogonognathellus longicornis-type

Spiders, harvestmen etc.:
- 1 Bridge Orb-web Spider Larinioides sclopetarius
- 1 Long-jawed Orb-web Spider Tetragnatha sp.

Apart from the moths tucked up at the top of the street lamp poles there was not much on the dew-covered poles.

Telford Sailing Club
Around the outside of the Telford Sailing Club HQ pre-dawn:

Flies:
- 9 craneflies, not specifically identified

Beetles:
- 1 Alder Leaf Beetle Agelastica alni

Spiders, harvestmen etc.:
- 7 spiders of several species, not specifically identified

Noted later:

Flies:
- 1 male cranefly Tipula pagana

Beetles:
- *1 Alder Leaf Beetle Agelastica alni

Spiders, harvestmen etc.:
- 1 harvestman Dicranopalpus ramosus/caudatus

Fungus:
- *1 Birch Polypore Piptoporus betulinus

Autumn colours in a group of Oak leaves.

Snug underneath the overhanging part of a street lamp are four November Moth-types Epirrita dilutata agg. There was another 'round the corner' on this pole and four more on the adjacent street lamp pole. The tenth this morning was five lamps away.

Against the lichen growing on the street lamp pole it is not easy to see what I believe to be species of brown lacewing.

I am not sure that the antennae are long-enough so I am leaving the identity of this springtail as a Pogonognathellus longicornis-type.

Not a hedgehog beetle – there is such an insect! This is an Alder Leaf Beetle Agelastica alni covered in water droplets from a very misty morning.

This fungus is Birch Polypore Piptoporus betulinus. It has been growing each Autumn on the same dead Birch tree for some years. This is the best example I can recall. Now that I have enlarged the photo I see there is a male cranefly Tipula pagana resting on top.

The underside. This species is also called Razor-strop Fungus. It used to be dried and used for sharpening knives and cut-throat razors. It is edible but very bitter tasting with a spongy texture. Thinly slicing young examples might work.

(Ed Wilson)

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In the Priorslee Avenue tunnel:

Flies:
- 1 female plumed midge

Woodlice:
- 9 Common Shiny Woodlice Oniscus asellus (presumed all this species: I did not check them all)

Arthropods:
- 4 White-legged Snake Millipede Tachypodoiulus niger

Spiders, harvestmen etc.:
- 7 spiders of several species, the only one specifically identified:
*1 Stout Sac Spider Clubiona sp.
*1 Long-jawed Orb-web Spider Metellina sp.
- *1 harvestman Paroligolophus agrestis

One of seven spiders I noted here this morning. The 'bump' on the tip of the abdomen identify this as one of the Stout Sac Spiders Clubiona sp. It seems a long while since I noted any. They seem to be seen mostly in the Winter period.

The only other spider I could close-enough to get at least a partial identity was a Long-jawed Orb-web Spider Metellina sp.

The noticeably thicker inner portion of the (only six!) legs identifies this as the harvestman Paroligolophus agrestis. This species often noticeably small for a harvestman. This one wasn't. The size of the palps suggest it is a male so perhaps that is why it is larger than some I see.

(Ed Wilson)

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The Flash: 09:20 – 10:35

(228th visit of the year)

Bird notes:
- noted together in trees along the East side were two Redwings and five Siskins. The latter were my first of the Autumn here – 23 September last year.
- a Grey Wagtail was present again briefly.

Bird(s) noted flying over here:
- 1 Greylag Goose
- 1 brownhead Goosander
- 75 Wood Pigeons in three migrant groups
- 3 Lesser Black-backed Gulls
- 23 Jackdaws in two groups
- 10 Starlings: together

Noted on / around the water:
- 5 Canada Geese
- *6 + 3 (1 brood) Mute Swans
- 37 (25♂) Mallard
- *111 (?♂) Tufted Duck
- 15 Moorhens
- 146 Coots
- 1 Great Crested Grebe
- 6 Black-headed Gulls
- *1 Lesser Black-backed Gull: immature
- 2 Cormorants

Noted around The Flash:

Moths:
- 1 November Moth-type Epirrita dilutata agg.

Beetles:
- 1 Alder Leaf Beetle Agelastica alni

Last year's Mute Swan cygnets now have much white in their plumage. All are strong flyers able to turn corners. One of them spends much of the time on its own.

A drake Tufted Duck with white feathers beginning to appear in its flanks.

An immature Lesser Black-backed Gull showing the typical strong under-wing markings. Ageing this bird has proved to be somewhat problematic. The tail-band is indistinct: it should be stronger in a second winter and absent in a third winter. Also the pale tip to an otherwise black bill similarly does not fit either age. Not all gulls age at the same rate. I think it most likely a late moulting second summer partially in third winter plumage.

 The upper view does show that some lesser coverts are still growing.

 A better view of the rather indeterminate tail-band.

(Ed Wilson)

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2010
Priorslee Lake
Water Rail
9 Meadow Pipits
143 Fieldfare
8 Redwings
(Ed Wilson)

2009
Priorslee Lake
1 Yellow-legged Gull
2 Common Gull
6 Wigeon
(John Isherwood)

2006
Priorslee Lake
Female Blackcap
(John Isherwood)