Baglan

                       A couple of shots of Neath and Swansea as seen
                       from the top of Cwm daran, Baglan yesterday.

                                 Bluebells in the Beech wood.

Curled Octopus at Great Tor

Belated posting (my fault) of this stunning Curled Octopus (Eledone cirrhosa) found and photographed by Sian Musgrave in pool below Great Tor on 15th Februrary. A truly amazing animal!

(c) Sian Musgrave

Gas pipeline legacy

The green scar across and down the sides of Cefn Drum, above Pontarddulais, shows the route of the gas pipeline. I understand that the land was sown with seed collected from adjacent heathland (stands of Heather appearing dark purple on the photo), however, it's hard to imagine at this stage how heath could possibly regenerate given the intensive grazing on the grass-dominated areas of the common.

Observations at two cliff nests in west Gower

Gordon Howe reported that a nest site used by Peregrines in recent years has been taken over by a pair of Ravens this year, a possible explanation being the gradual disintegration of the nest over the period the Peregrines have been in occupation. Now the Ravens have done a good DIY job, it will be interesting to see what happens next year?

Another observation made by Gordon was a Fulmar 'fouling' an over-inquisitive Herring Gull; we've all heard about this behaviour, but how many of us have actually seen it happen. Unfortunately Gordon missed the actual moment with his camera, but the scene is set below. Gordon adds...'The Fulmar likes being in there but has never nested. The gull also was in there and the Fulmar may have retaken it. This is where the first Peregrines nested (female sat on eggs but the male had abandoned her. Eggs possibly infertile and she gave up after about 4 weeks of sitting) in about 1984 when they returned after the long DDT absence.'

It seems a good opportunity to point out that the Gower Ornithological Society has a new atlas in prep and the example tetrad maps below show the breeding and winter distributions of Fulmar in West Glamorgan. I don't have my copy of the 1992 atlas to hand, but I suspect the distribution has changed little for this species in comparison with others. More updates to follow on this project...

Breeding distribution 2008-2012

Winter distribution 2008-2012

Hybrid Gull at WWT Llanelli

This rather smart presumed Mediterranean Gull x Black-headed Gull hybrid has recently been frequenting the Black-headed Gull colony on the main Lagoon at Penclacwydd, currently estimated at around 120 pairs. The bird was identified by Richard Davies, Wendell Thomas, Lyndon Evans & Julie Evans on 4th May, although earlier reports of a second summer bird suggest that it's probably been around a bit longer than that. Today it was posturing-displaying on its own, without attracting much attention, so second generation hybrids seem unlikely at this stage.

(c) Wendell Thomas

The main features pointing to it being a hybrid are the Med-like satin black hood, bold white eye-crescents and bright red drooped bill. Pro-black-head features are the apparent Black-headed Gull type closed wing pattern, the narrowness of the bill and the white nape. A key feature not visible in this image is the wing pattern which unfortunately we never saw today; hopefully someone will get this on camera. Photos of other Med.x B-h. Gull hybrids I've seen look far more Med-like than this bird, so not sure how unusual this phenotype is?

Foxhole Slade Caterpillars

Searching the limestone cliffs of Foxhole Slade with a headlamp about an hour before dawn on Sunday turned up a couple of caterpillars despite a temperature of about 4 degrees C.

 The coastal specialist Annulet (Charissa obscurata) nicely camouflaged on the limetone...

and the widespread and strangely named Uncertain (Hoplodrina alsines). Neither was feeding while I watched them, but they may well have done so earlier in the night before the temperature dropped.

Yellow Whitlowgrass 2013 survey

Karen Wilkinson (Natural Resources Wales) wrote:

'Early in April Mervyn Howells, myself and a handful of other volunteers undertook a survey of Draba aizoides (Yellow Whitlowgrass) of the south Gower Coast. Gower is the only known UK location for this species in the UK, although it is also found in the mountain ranges across Europe such as the Alps, the Pyrenees, the Carpathians and the Jura mountains. It grows in cushions in crevices and on ledges along the Carboniferous Limestone from Pwll Du in the east to Tear’s Point in the west. As it is an early flowering species, its yellow flowers are particularly distinctive at this time of year before most other species are in flower.

Mervyn has been monitoring the populations for more than 20 years and has an amazing knowledge of the distribution of plants which often occur in very precarious situations! Although it clearly has a limited distribution in the UK, in Gower it does appear to be stable; this year around 1400 plants were recorded. This is likely to be an underestimate as some locations are extremely difficult to survey safely, where we also noticed good numbers of plants growing in the grassland sward at the top and bottom of cliffs. This may be partly due to changes in grazing pressure or might be related to successful seed production or seed germination in recent years.

Distribution map of all pre-2013 records of Yellow Whitlowgrass
(results from 2013 show a very similar pattern)

During the survey we also noticed a larger population of Sedum album (White Stonecrop) than we were previously aware of, primarily along the thin band of therophytic vegetation on the cliff tops. This plant is frequent in the droughted slopes around Port Eynon and we are keen to keep an eye on its spread west and its effects on the local flora. If anyone has any new or historic records for this species we would be interested in hearing from you.'

Distribution map of all pre-2013 records of White Stonecrop
(pre-2000 records shown by smaller dots)