Back in December, Juliet Bailey led a general interest GNS field meeting on Edge Common and Haresfield Hill. Species lists for that meeting are in the process of being prepared, but here are the first two:
Lichen and plant lists will follow shortly.
Juliet Bailey “was out near Cirencester yesterday (in the sunshine) and came across some lovely fungi. I’ve sent photos to John Holden of the Dean Fungus Group who has agreed with the Scarlet Elfcap, probably Sarcoscypa austriaca, but you need to check the spores to be sure. And the other is Turkeytail Trametes versicolor with very nice fresh brackets.”
Andrew Bluett had the following sighting of the Peregrines at Gloucester Cathedral on Friday. The male came in from the north over the roof (2025a) then headed for a perch on the highest south-east pinnacle (2031x); he then collected Prey from somewhere out of sight behind the tower (2039x – small and unidentifiable) and passed it to the female on the west face of the tower with some brief calling. The male has a metal BTO ring on the right leg, Orange Darvic ring “PAC” on the left leg. This bird fledged from Cheltenham in 2017. Also present was the Black Redstart which has been there for a while now.
As part David Priddis’s annual bird box check, he found some honey bee ‘squatters’ in the Little Owl box.
There is some nice natural wax comb, it looks as if they have had all the stores of honey from the right combs and are clustered around those on the left, which hopefully still have some honey left for them.
He managed to replace and screw the front back on without being stung!
Ripple Lakes are two former sand and gravel pits in the floodplain of the Severn in south Worcestershire, very close to the Gloucestershire boundary, one on each side of the M50, on the left (east) bank. These new lakes, where extraction has only just been completed, hold fairly deep water throughout the year, in particular in late summer and early autumn when other natural wetlands in north Gloucestershire and south Worcestershire (such as Coombe Hill, Ashleworth/Hasfield Ham or Longdon Marsh) often dry out (though not in autumn 2019!). As such they represent a new wetland for the area, and are attracting water birds, both diving ducks which seek deeper water, and surface-feeding ducks and geese which can graze around the grassy edges. Clearly a topic worthy of further investigation by a recording society like Gloucestershire Naturalists’ Society: a field meeting had been scheduled in early December, but had to be postponed because the whole of the floodplain was deeply flooded. Nothing daunted, a doughty band of GNS members (with some guests from the Cheltenham Bird Club) gathered on 19 January, in bright frosty conditions with brilliant light, to investigate the birds present.
As expected, numbers and variety of diving water birds were greater than in shallower Gloucestershire sites: 35 Pochard, 65 Tufted Ducks and a Goldeneye, plus ten Great Crested Grebes. Numbers of geese and surface feeding ducks proved disappointing – just 100 Greylags and 60 Canadas (some of which may already have returned to nesting sites further north) and only 4 Wigeon and 2 Shoveler (perhaps the bigger numbers of these surface-feeding ducks were still back in shallow floodwater at Coombe Hill and Ashleworth). Another bird of interest was a Great White Egret, a still rare Mediterranean heron which has only recently begun to occur, like its smaller cousin the Little Egret, in southern England. Finally an interesting series of waders was noted: a Green Sandpiper and three Snipe would have been winter visitors. as was a most unexpected Common Sandpiper (which normally winters south of the Sahara). On the other hand two Oystercatchers on the island in the south lake were no doubt early returning birds, just arrived to assert their territorial rights on this island which holds a variety of nesting waders; spring must be just around the corner!
Here is a selection of less than perfect photos of butterflies currently using my Buddleia. With the warm weather and fuelled-up on nectar they don’t stay still for very long in the perfect open position, but perhaps closed or half-closed is the view that most people will get of them.
Painted Lady – star of the show in great abundance this year. In flight, the general impression is of an apricot coloured butterfly.
When perched with its wings folded the Painted Lady shows pretty pale stone-coloured mottling on the reverse of the hind wing with a dusty band of apricot and flecks of black and white on the upper wing.
Red Admiral – very handsome black with brilliant red and white and a highlight of blue. On the reverse, the bottom wing is dark but there is dull red, white and blue on the upper wing.
Peacock – when the wings are open it is basically orange with big eye-spot discs on the top and bottom wings. With the wings folded these disappear and it looks almost black, unlike the Painted Lady and Red Admiral which are still moderately colourful on the underwing.
Small Tortoiseshell – this butterfly is a little smaller than the previous three and when open is a brick red with black, white, red and yelllow blocks, rimmed on the edge with little blue beads. With folded wings it is the dark brown of a dead leaf.
Comma – another smaller butterfly the same sort of size as the Small Tortoiseshell, this butterfly is ginger orange, and its characteristic when perched from either view point is the scalloped edge to the wings as if something has been taking bites out of it, which is much more pronounced than the other species. I did not stay long enough to get a photo of one perched on Buddleia flower.
Small White – there are three possible Whites on the Buddleia – Small, Large and Green Veined. This is Small White. It is about the size of the Small Tortoiseshell whereas Large is the size of the Peacock etc. The perspective in the photo is giving the wrong impression, the white butterfly is closer than the other two. Green Veined would show dingy dark lines (the so-called green veins) on the reverse of the wings. The wings here are a relatively unmarked white/yellow, hence it is Small White.
Ken Cservenka found this object on a blackthorn twig while doing a Brown Hairstreak egg search on the border with Wiltshire.
He has no idea what it is, so please identify it for him.
If you have any suggestions then if you have a login please comment here, otherwise email Ken.
Posted on behalf of Ken Cservenka.
Visit 12 on 28/08/2018
The last visit of the survey. All twelve visits completed this year, and a good range of species caught. Full details to follow in the annual report.
Like the last visit this one was a small catch, reflecting the trend of recent years for catches to fall off during August. The catch of 31 birds was below average and was the third equal lowest catch. Despite this, the total for the year will put 2018 in the middle of the “league table” of catches, so in terms of overall numbers it has been an average year. The full report will show how the different species have done.
Of the 31 birds caught today, 19 were of resident species, the first time that resident birds have outnumbered summer migrants. All the Sedge warblers had gone, and only two Whitethroat were caught. Solitary Willow warbler and Redstart, two blackcaps, and a few more low flying Swallows made up the migrant catch.
With the end of the CES season, we now have a little break, then re-commence ringing here at Ashleworth towards the end of September to monitor the Autumn passage of Reed Buntings and Meadow Pipits. These will hopefully be joined by flocks of Finches.
Most people will think of Upham Meadow at Twyning as a Lammas Meadow, one of the traditional Severn and Avon Vale riverside meadows, which floods in winter and produces a hay crop in summer. It is a Site of Special Scientific Interest because of its nesting hay meadow birds – in particular Curlews, Redshanks, until recently Corn Buntings, with Reed and Sedge Warblers round the edges, and many pairs of Reed Buntings. It’s also well known for its hay meadow botany, and is particularly rich in species like Meadowsweet and Great Burnet, as well as two species of Water Dropwort, the Narrow-leaved and the Tubular. This natural diversity is maintained by traditional farming practices: no fertiliser (the river floods bring enough of that); no spraying (which means that Ragwort is a problem); hay cutting beginning on 15 June and proceeding strip by strip until Lammas Day in early August; prohibited access in the summer months; then aftermath grazing by commoners who have grazing rights. The whole system is overseen by the Haywarden, one of the owners of the strips of land. This system is supported by current agri-environmental schemes, managed by Natural England.
In autumn and winter, before the floods rise, the site is grazed by sheep and cattle. Among the species present are large numbers of Canada Geese, and in recent winters some of these birds have proved to be carrying engraved colour rings, which were put on in midsummer, of all places at Windermere. The birds go there during the moult period, when they are flightless, and need to keep well out of the way of marauders. Having renewed their flight feathers, they make for the Severn and Avon Vales to winter. One of these Canada Geese was marked at Bowness in Windermere in July 2013, with a red ring bearing the inscription AASK in white letters. I have since seen this same bird with the same ring, at Upham Meadow in November and December 2014, February, October and December 2015 and in November 2016; I didn’t manage to find it in winter 2017/18, so was pleased to observe it again on 17 November 2018, back in familiar surroundings. It is clearly very faithful to this site.
While I was pleased to see Canada AASK again, a much more surprising find was a Greenland White-fronted Goose Anser albifrons flavirostris, among a flock of just over a hundred Canada Geese. The Greenland Whitefront is the subspecies of Whitefront that nests in Greenland, and passes through Iceland to winter in Ireland and western Scotland; it was first named by Sir Peter Scott who named it for its yellow bill (‘flavirostiris’), yellow legs and heavier barring on the belly. It is fairly unusual in Gloucestershire – The “Birds of Gloucestershire” indicates that it has occurred, mainly at Slimbridge, in about 20 winters since 1945, generally birds which overshot Ireland on their way southeast. This subspecies is relatively easy to distinguish from the European Whitefront Anser albifrons albifrons which breeds in Russia and migrates through western Europe, reaching Slimbridge as its most westerly wintering site.
When I looked more closely at the bird – even more exciting – I found it had a satellite transmitter round its neck, so (if the transmitter was working) there was a chance of finding out more about the route it had taken to reach Twyning. The bird was seen a bit later on the Worcestershire bank near Fleet Lane by Andy Warr who took the attached pictures, which clearly show the transmitter, and the yellow bill. It has been seen since then in several sites on the Worcestershire border, at least until 20 November.
I sent this information to goose expert Dr Tony Fox, once of Slimbridge, now working in Denmark as a key figure in international goose studies, and for many years a specialist in Greenland Whitefront. His response was as follows:
“This bird was indeed an adult female Greenland White-fronted Goose caught in Hvanneyri, West Iceland, on 23 September 2017; after several days at Hvanneyri, she shifted westwards within Iceland to spend the remaining time staging in Myrar. That autumn she overshot Wexford (literally overflying County Waterford), hit the Brittany coast and looped round back over Cornwall to arrive finally at Wexford, where she wintered.
“In autumn of 2018, she left Iceland on 24 October sometime after 14:37 UTC and was mid-way across the sea at 02:00 on 25 October, but was clearly drifting very far east, ending up in mid North Sea, arriving off Texel at 17:00. She clipped Goeree, south of Rotterdam, at 20:00, and a little later left the Belgian coast off Zeebrugge, reaching the English coast at 00:30 on 26 October at the mouth of the Deben Estuary. She looped southwest and departed the southern English coast between Newhaven and Seaford, heading for the French coast, which she reached at about 07:00 same day, just north of Le Havre. Clearly not satisfied with her landfall, she headed NE and just inland of Calais and at around 12:00 swung NW and crossed the Channel again, coming into NE Kent in mid-afternoon on 26 October. She headed for the north coast and seemed to rest on the sea (the first time she seems to have rested since leaving Iceland) between 19:00-21:00 between Birchington-on-Sea and Herne Bay. She seemed to land in a field just inland from there, but at midnight set off west, following the north coast of Kent, continuing over south London (just south of Heathrow at 15:00 on 27 October). She stopped briefly for a few hours from 19:00-21:00 in fields near Aynho, at the southern end of Northamptonshire before heading on, and probably roosted in north Gloucestershire before heading onwards. By 17:50 on 28 October she reached gravel pits at Great Comberton and has been on the Gloucestershire/Worcestershire border ever since.
The map below shows her itinerary, as revealed by the satellite. This all shows that Upham Meadow is interesting not just for Curlews and Water-Dropwort!
STOP PRESS: Latest news of the Greenland Whitefront: the transmitter suddenly stopped working overnight on 20 November, when the bird was known to be roosting at Kemerton Lake in south Worcestershire. It was feared that the bird had been predated, perhaps by a fox? Careful searches of the site revealed no corpse and no transmitter, and searches for the bird among flocks of Canada Geese were also unsuccessful. Fortunately, however, it turned out that the fears were groundless: the transmitter started working again (sending a signal every 15 minutes), and in the last few days of November, she has visited Ripple Lake and Longdon Marsh in Worcestershire, and Tirley and Coombe Hill in Gloucestershire. Incidentally, while the neck collars may look ugly and cumbersome, Tiny Fox comments: “We started by using backpacks back in the 1990s, but had huge problems with geese ripping out the antennae and chewing through harnesses. There have been some published analyses of using different types of attachment on geese, and the prevailing wisdom is that collar mounted devices are by far the best for the survival and fitness of the birds.”