10 May 21

Priorslee Lake and The Flash

9.0°C – 13.0°C: Started with the Telford 'hat' of low cloud (clearer to N and W). Began to break after 06:00 thought it was after 08:30 before much in the way of sun. Moderate S wind. Very good visibility

Sunrise: 05:22

* = a photo today

Priorslee Lake: 04:40 – 06:00 // 06:50 – 09:45

(87th visit of the year)

I owe an apology to the Sailing Club. I was misinformed: the tree I photographed and reported as having been cut down had, I now understand, blown down across the path. The Sailing Club merely cut it up in order to re-open the path. Apologies again.

Two highlights this morning:
- My second Hobby of the year flew through at 04:55. This is not the first time I have seen a very early bird. I wonder whether they have been chasing bats?
- My second Lesser Whitethroat of the year was in the S side bushes at 08:45. At one point six species of warbler were singing concurrently from a small group of bushes: Chiffchaff, Reed Warbler, Blackcap, Garden Warbler, Lesser Whitethroat and Common Whitethroat. The Lesser Whitethroat moved W and was last heard in the brambles behind the Sailing Club shelter.

Other bird notes:
- The Mute Swans have seven cygnets and brought them out on the water twice.
- A good number of Swifts - at least 20.
- A pair of Sparrowhawks were circling over the NW area. This is a location where I have suspected breeding in previous years, mainly on the basis of hearing begging juveniles later in the season.
- There was a real fight between Great Crested Grebes with one being held under water for quite some time. Seemed to escape physically uninjured. Five birds noted.
- A Reed Warbler was singing in the S side reeds and presumably the same bird that was briefly singing from the bushes by the M54. There was an additional bird singing along the N side.
- One of the Garden Warblers seen and heard along the N side yet again.

Overhead
- 2 Canada Geese: pair outbound
- 1 Stock Dove
- 9 Wood Pigeons
- 2 Collared Doves
- 2 Sparrowhawks
- 2 Common Buzzards
- 1 Hobby
- 2 Herring Gulls: immatures
- 1 Lesser Black-backed Gulls: (near) adult
- 3 Cormorants together
- 59 Jackdaws
- 3 Rooks

Hirundines etc., noted:
- >20 Swifts
- 3 Barn Swallows
- 2 House Martins

Warblers noted
- 12 (10) Chiffchaffs
- 9 (9) Reed Warblers
- 14 (10) Blackcaps
- 3 (3) Garden Warblers
- 1 (1) Lesser Whitethroat
- 5 (4) Common Whitethroats

Count from the lake area
- 1 Canada Goose: the resident
- *2 + 7 (1 brood) Mute Swans
- 4 (3♂) Mallard: a pair on the football field at 05:45 are presumably the pair on the lake later.
- 1 Moorhen only again
- 21 + 4 (1 brood) Coots: a different brood of juveniles.
- no Little Grebe
- *5 Great Crested Grebes
- 1 Common Sandpiper
- 1 Lesser Black-backed Gulls: (near) adult: probably the bird on the academy playing field a few minutes later
- 1 Grey Heron once more

On / around the street lamps pre-dawn:
- 3 Larinioides cornutus, commonly known as Bridge Orb-web Spiders

Noted later:
The following hoverfly species:
- *probable Plain-faced Hoverfly (Eristalis arbustorum)
- *Tapered Dronefly (Eristalis pertinax)
- *The Footballer (Helophilus pendulus)
- *Chequered Hoverfly (Melanostoma scalare)
- *Syrphus sp.
also
- many St. Mark's Flies (Bibio marci). So called because they emerge around St Mark's Day (25th April). They are associated with Hawthorns in particular. They are all-black flies that dangle their legs in flight.

The Mute Swan family. I can only see six cygnets in this shot. I am sure there were seven. They did not stay out on the water very long, the parents taking them back home to the nest.

This short video was taken at c.05:30 on a cloudy morning. There are (eventually) three Great Crested Grebes in this clip. However the main action is between just two. About all that can be seen of one of them is a leg. It did eventually surface and seemed none the worse for its ordeal which had been going on for some while before I decided to try a video even though the light was poor.

These were the bushes where six species of warbler were singing. I hoped (some hope) the Lesser Whitethroat would pop out but no: a Common Whitethroat. A Lesser would not show brown in the wing and the head would be darker.

Not my best-ever. This Honey Bee (Apis mellifera) was being a busy bee and flitting between all the Hawthorn blossom and hard to keep up with.

This hoverfly is probably Eristalis arbustorum. Smaller than the two common Eristalis drone flies it has very variable markings and is difficult to separate from E. nemorum. A view of the face would clinch the ID - its vernacular name is Plain-faced Hoverfly. Not chance here!

A rather battered-looking Tapered Dronefly (Eristalis pertinax) - look at the wings. Unlike the previous photo this species (and the Common Dronefly E. tenax) show a dark cloud in the wing.

My first Helophilus pendulus hoverfly of the year. Known as The Footballer. One day later than my first 2020 sighting.

A very common small hoverfly is the Chequered Hoverfly (Melanostoma scalare). It is often difficult to discern the abdomen pattern through the folded wings at rest.

Because the eyes meet this is a male hoverfly and has to be logged as Syrphus sp. Male S. ribesii cannot be visually separated from S. vitripennis.

This the spider Larinioides cornutus, commonly known as Bridge Orb-web Spider. One of three on different lamps pre-dawn.


(Ed Wilson)

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Between the lake and The Flash

- Three drake Mallard on the lower pool.
- A pair of Moorhens at both pools with one of each still sitting on a nest.
- 1 Chiffchaff singing at the lower pool.
- 1 Blackcap singing alongside the upper pool

(Ed Wilson)

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The Flash: 06:05 – 06:45

(74th visit of the year)

Bird notes
- The Mute Swans have lost yet another cygnet: only four now.

Noted flying over here:
- 3 Wood Pigeons
- 2 Jackdaws

Hirundines etc. noted:
None

Warblers noted
- 4 (3) Chiffchaffs
- 3 (3) Blackcaps

On the water
- 27 Canada Geese
- no Greylag Geese
- 3 + 4 (1 brood) Mute Swan
- 18 (14♂) Mallard
- *7 (4♂) Tufted Duck
- 8 Moorhens
- 22 Coots
- 2 Great Crested Grebes

Nothing else of note.

For some the breeding season is over. The drake of this pair of Tufted Duck no longer has gleaming white flanks, losing these to the eclipse plumage which will make the sexes hard to separate by August.

(Ed Wilson)

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On this day
2020
Priorslee Lake
Today's Sightings Here

2019
Priorslee Lake
Today's Sightings Here

2017
Priorslee Lake
Today's Sightings Here

2016
Priorslee Lake
Today's Sightings Here

2015
Priorslee Lake
Today's Sightings Here

2014
Priorslee Lake
Today's Sightings Here

2013
Priorslee Lake
Great White Egret
(Ed Wilson)

2006
Priorslee Lake
2 Ruddy Ducks
(Ed Wilson)