25 Aug 18

Priorslee Lake and The Flash

Priorslee Lake: 05:20 – 06:50 // 07:40 – 09:35
The Flash: 06:55 – 07:35

9°C > 14°C: Fine and clear with a few patches of cloud to N that mostly melted away again. Once more some puffy clouds after 09:00. Moderate WNW wind. Very good visibility.

Sunrise: 06:07 BST

Priorslee Lake: 05:20 – 06:50 // 07:40 – 09:35

(103rd visit of the year)

Bird notes from today:
- no Canada Geese seen or heard around the lake today
- the 6 Cormorants flew SW at 06:10
- Jackdaw numbers have increased in the last few days: no sign of any roost dispersal, just singles / pairs flying over in rather random directions
- House Martins heard over at 06:05 and 06:10 but not located; 4 flew S at 06:25; 4 flew E at 08:10. Thereafter birds congregated downwind of the dam until there were >20 present (with at least 2 Barn Swallows joining in). Quite how many of these were passing and how many opportunistic local birds is impossible to say

Today’s bird totals

Birds noted flying over or flying near the lake:
- 107 Greylag Geese [53 (6 groups) outbound; 54 (3 groups) inbound]
- 6 Cormorants
- 1 Sparrowhawk
- 8 Black-headed Gulls
- 13 Lesser Black-backed Gulls
- 3 Feral Pigeons
- 83 Wood Pigeons
- 13 Jackdaws
- 1 Chaffinch

Hirundines etc. noted
- 2 Barn Swallows
- >20 House Martins (see notes)

Warblers noted:
- 13 (3) Chiffchaffs
- 1 (1) Willow Warbler
- 6 Blackcaps
- 2 Reed Warblers

The counts from the lake area
- 2 + 3 (1) Mute Swans
- 16 (?♂) Mallard
- 2 Grey Herons
- 6 + 4 (2 broods) Great Crested Grebes
- 6 + 11 (? broods) Moorhens
- 95 (near) adult + 8 dependent juvenile Coots
- 10 (no juveniles) Black-headed Gulls

And other notes
- butterflies
- 4 Speckled Wood again
- no moths on the lamps or identified elsewhere
- damselflies / dragonflies
- 2 Blue-tailed Damselflies
- hoverflies
- 1 unidentified Eristalis sp. (Drone-fly)
- 1 Syrphus ribesii
- 1 Helophilus pendulus (The Footballer)
- flies etc. identified
- lots of wasps sp. again
- beetles or bugs noted
- a 7 Spot Ladybird (Coccinella 7-punctata)
- no spiders noted
- no different plants noted

The sunrise for what it was worth.

Some warbler photos today – get them before they leave. Here is a Chiffchaff. Note that while the legs are black (like they are supposed to be, even though they are not always!) then the feet are most definitely orange-brown. Very weak supercilium. At this time of year a Willow Warbler would appear much more yellow-toned and with a strong supercilium and dark line through the eye.

Can be quite acrobatic after food.

This is a different individual. I am pretty certain this is a juvenile with rather scruffy plumage and a mixture of brown and grey tones.

Obviously a Blackcap: but is it a female or a juvenile (of either sex)? I am not certain but I would vote for an adult female on the basis of the very dark iris. I would expect a juvenile to have a more orange or brown iris.

A well-striped thorax is a good clue for the hoverfly Helophilus pendulus (The Footballer). In fact there are several hoverflies that show a striped thorax, though none quite so prominently. Here the insect is deep inside a Convolvulus flower.

Inside another Convolvulus flower was this Syrphus ribesii hoverfly.

The 7 Spot Ladybird (Coccinella 7-punctata): 3 spots on each wing (elytron) and one spanning where the elytra join behind the head (at the bottom of the photo).

(Ed Wilson)

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The Flash: 06:55 – 07:35

(85th visit of the year)

Notes from today
- quite why the Black-headed Gulls seem to prefer here to the lake is hard to fathom. Many of these arrived from the E while I was walking around

Birds noted flying over or near to The Flash
- 7 Feral Pigeons
- 7 Wood Pigeons

Hirundines etc. noted
None

Warblers noted
None

The counts from the water
- 2 + 3 Mute Swans as usual
- 30 Greylag Geese: 2 of these arrived
- 31 Canada Geese: all of these arrived
- 16 (10♂) + 13 (2 broods) Mallard
- 12 Tufted Ducks
- 2 + 3 (1 brood) Great Crested Grebes as usual
- 2 + 1 Moorhens
- 12 + 2 dependent juvenile Coots
- 124 (10 juveniles) Black-headed Gulls: many arrived

Of interest between the lake and The Flash
- 1 Chiffchaff calling by the lower pool
- 1 Blackcap calling by the upper pool

(Ed Wilson)

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On this day..........
2016
Priorslee Lake
Today's Sightings Here

2011
Nedge Hill
4 Yellow Wagtails
(John Isherwood)