30 May 19

Priorslee Lake and The Flash

Priorslee Lake:  04:10 – 05:55 // 06:50 – 08:40
The Flash:  06:00 – 06:45

12.0°C > 17.0°C:  Variable cloud with a few good breaks. Light / moderate SSW wind. Very good visibility.

Sunrise: 04:53 BST.

Priorslee Lake: 04:10 – 05:55 // 06:50 – 08:40

(141st visit of the year)

Species added to my 2019 bird log from here
92      Common Tern
A bird dropped in at 07:50, did two circuits of the water, made a half-hearted attempt at diving for a fish and then left.

Other bird notes from today
- Need to go back to skool to do more ‘sums’. The Mute Swans have seven cygnets!
- At 04:20 there were two noisy adult Great Crested Grebes along the S side. The bird from the NW area was swimming after them. The pair with the two youngsters was nowhere to be seen – probably still in the N-side reeds. I assumed these were ‘extra’ birds. I did not see them again on the water. At 07:35 a pair of Great Crested Grebes flew W overhead – same?
- At 05:40 a distant skein of c.25 Lesser Black-backed Gulls flew NW. These days any skein that size is unusual, doubly so at the end of May when there have been no recent gales. Two singles over later

Bird totals:

Birds noted flying over or flying near the lake:
- 3 Canada Geese (outbound)
- 1 Cormorant
- 2 Great Crested Grebes (see notes)
- >25 Lesser Black-backed Gulls (see notes)
- 4 Wood Pigeons only again
- 60 Jackdaws
- 19 Rooks

Hirundines etc. noted:
- >25 Swifts
- 1 Barn Swallow
- 6 House Martins

Warblers noted (singing birds):
- 6 (5) Chiffchaffs
- 18 (17) Blackcaps
- 5 (4) Garden Warblers
- 3 (1) (Common) Whitethroats
- 1 (1) Sedge Warbler again
- 7 (7) Reed Warblers

Counts from the lake area:
- 2 + 7 (1 brood) Mute Swans
- 11 (10♂) + 2 (1 brood) Mallard
- 2 (1) Tufted Ducks
- 5 + 2 (1 brood) Great Crested Grebes (see notes)
- 2 Moorhens
- 22 + 17 (5 broods) Coots
- 1 Common Tern

nothing on the lamp poles pre-dawn.

Seen later
NB: From now on I will generally only report insects when they are new for the year; or there are particularly unusual number or behaviour. However ALL moth sightings will be logged.
- 2 Silver-ground Carpet (Xanthorhoe montanata).
- At least 2 Common Nettle-tap micro-moths (Anthophila fabriciana).
- Numerous freshly emerged and unidentified damselflies on the exit sluice platform.
- 1 female Red-eyed Damselfly found at rest.
- 1 probable Common Orange Legionnaire fly (Beris vallata).
- 1 male Scorpion Fly (Panorpa communis).
- an unidentified fly with green shoulders and a striped body.
- I confirmed the presence of the caddis flies Mystacides longicornis. They are rather similar to several species of micro moths also with long antenna.
- Many slugs and snails including a Glossy Glass Snail (Oxychilus navarricus).
- >2 pipistrelle-type bats.
- >6 noctule-type bats. My largest number for many years. These were mixed up with the early Swift arrivals at 04:35.
- 1 Grey Squirrel again.

Some early colour to the sunrise at 04:40. 

But for the most part just an ‘interesting sky’.

A record shot of the two Great Crested Grebes flying over. 

Another record shot only of this morning’s Common Tern as it departed.

This is one of the freshly-emerged damselflies drying out on the sluice platform. I cannot identify the species from this early, uncoloured teneral.

Another damselfly and none too easy. I am fairly confident this is a female Red-eyed Damselfly. The eyes are hardly ‘red’ but they are certainly not black. The small yellow patch on top of the thorax seems the best clue.

This fly with a black thorax and orange body is likely a Common Orange Legionnaire (Beris vallata) – we cannot see the colour on the tibia of the hind leg to allow separation from other, uncommon, Beris sp. The shading in the wing tells us this is a male.

An interestingly striped fly with green shoulders. 

Another view of a different specimen. 

Moments later it closed its wings and the striped body was no longer visible. Sadly I cannot get close to identifying this.

On safer territory here. My best effort at a Scorpion Fly (Panorpa communis) this year. The ‘sting’ is in fact the male genitalia.

Here we see the, patterned wings, long antenna and red eyes of the caddis fly Mystacides longicornis. These dance in profusion above the lake-side vegetation when the sun is out. Then the only stationary individuals are those caught in spider webs. Here the sun has gone in and this one settled in view.

After yesterday’s rain the slugs and snails were out in force. With a dark band at front edge of its shell this seems to be a Glossy Glass Snail (Oxychilus navarricus).

(Ed Wilson)

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The Flash:  06:00 – 06:45

(134th visit of the year)

Notes from here:
- Tufted Duck again difficult to count with some birds on and off the island; and others flying about. The pair seen flying over did not seem to originate from here. Were they the pair seen later on the lower pool (q.v.)?
- No idea why fewer Coots logged. Only one juvenile from the original brood seen, though there are many places for them to hide near their nest site.
- The Willow Warbler has stopped singing here now, four days after the one stopped singing at the lake. Yesterday this one was much more mobile than usual. Perhaps he has a family to feed? I did not hear any calls.
and
- Several shield-bugs on lamp poles, likely all Common Green Shieldbugs (Palomena prasina).

Birds noted flying over / near The Flash:
- 2 (1♂) Tufted Ducks
- 1 Cormorant
- 3 Wood Pigeons

Hirundines etc. noted:
- 2 Swifts

Warblers noted (singing birds):
- 3 (3) Chiffchaffs
- 4 (4) Blackcaps
- 1 (1) Garden Warbler

Counts from the water:
- 3 + 4 Mute Swans as usual
- 29 Canada Geese
- 22 (14♂) + 13 (2 broods) Mallard
- 8 (4♂) Tufted Ducks
- 1 Great Crested Grebe
- 5 Moorhens
- 19 + 4 (2 broods) Coots

A grotty photo of a shieldbug high up on a lamp pole and taken against the morning sun. Worth showing to illustrate the colour on what I believe to be an instar of Common Green Shieldbug (Palomena prasina) – there were several ‘green’ individuals nearby.

(Ed Wilson)

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Between the lake and The Flash:

At or around the lower pool (singing birds):
The Tufted Duck were a surprise
- 2 (1♂) Tufted Ducks
- 1 Moorhen heard

At or around the upper pool (singing birds):
- 1 (1) Blackcap

(Ed Wilson)

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On this day..........
2018
Priorslee Lake
Today's Sightings Here

2017
Priorslee Lake
Today's Sightings Here

2015
Priorslee Lake
Today's Sightings Here

2014
Priorslee Lake
Today's Sightings Here

2013
Long Lane, Wellington
13 Ringed Plover
2 Dunlin
(JW Reeves)