Here are a few recent photos from the Rowley Hills taken over the summer. Our Bee Orchids returned once again, and we had a couple of new and notable insect sightings – Black and Red Squashbug (Corizus hyoscyami) which has only been recorded once before in the Black Country, and Long-winged Conehead (Conocephalus fuscus), the first time this species has been recorded on the Rowley Hills. Both of these species are thought to be spreading northwards, probably due to climate change, so sightings are likely to increase in coming years.
On a dry and mostly sunny May morning, 27 wildlife enthusiasts assembled just inside the entrance to Bury Hill Park off the A4123 Wolverhampton Road in Oldbury, for our walk entitled ‘Portway Hill – Green Hairstreak Search’. The route planned initially involved the ascent of the grassy slope of Bury Hill Park, which at this time of year is dotted with numerous umbels of white Pignut flowers. Small numbers of Chimney Sweeper moths have been seen here in in the past but council grass-cutting restricts this moth to a few small areas where the tractor’s grass cutting blades are unable to reach. At the summit of Bury Hill Park the ground levels out and excellent views of the surrounding urban landscape can be seen. Once everyone had gathered together, we followed the path that descends into and through the oldest of the Portway Hill quarries dating back to the late 1700s. A Speckled Wood butterfly flew by, but despite a brief appearance by a brownish-coloured butterfly or moth that quickly disappeared into the dense vegetation, which we thought might have been a Green Hairstreak, nothing came of it.
This track eventually opens out onto the lower part of the land owned by the Wildlife Trust for Birmingham and the Black Country, known now as Rowley Hills Nature Reserve. The group by this time had split up into two, with the serious entomologists straggling behind searching the vegetation for insects which, on what was now turning into a very pleasant day, were becoming quite active. With such a knowledgeable group of people very little went unnoticed, and soon Dock Bug, Hairy Shieldbug and Bishop’s-mitre Shieldbug were found. Discovery of a plant bug with distinctive orange and black markings, black legs and black antennae by one of our group, was later confirmed by Ecorecord as new to Birmingham and the Back Country. Corizus hyoscyami, sometimes called the Cinnamon Bug or Black and Red Squash Bug was until quite recently only locally distributed in sandy habitats around the coasts of southern Britain, but for reasons unclear it is now rapidly extending its range to a variety of habitats inland.
Heading in a south-west direction the leading part of the group paused at the exposed cliff-face where spheroid shapes peel off in layers during weathering, and good examples of columnar jointing, caused by cracks which formed when the magma originally cooled and contracted, can be seen. It was here that a Green Hairstreak made an appearance, alighting on an Oxeye Daisy flower just long enough for two or three of the party to take a photograph. Soon it was gone and for those at the back, sadly they were not to see a Green Hairstreak, our main quarry, as no further sightings were made during the walk. We did however all get a good view of the Small Copper that obligingly settled on a nettle leaf in front of us. Not the freshest of specimens, with a piece missing from the top corner of one wing, but nonetheless always a pleasing little butterfly to encounter.
Onwards and upwards in the direction of the radio masts on top of Turner’s Hill, we passed the remains of the old double-hedgerow which at one time formed part of a track leading all the way up to Rowley Church, about a mile away. Eventually, having reached the expanse of grassland adjacent to Portway Hill at the highest point of the site, where Lye Cross Colliery once dominated the landscape, and of which sadly, no trace remains today, we looked out at a mosaic of rank grassland and flowery meadow. Ever since the land was levelled and graded with spoil from the old colliery days little has changed other than Hawthorn becoming more dominant. The overgrown Hawthorn hedges marking the old field boundaries shelter the grassland from the brunt of the cold and drying easterly winds, and in doing so provide a certain amount of protection for the many butterflies, day-flying moths and other invertebrates found here. A search of the grassland here revealed Common Blue and Small Heath butterflies, and Mother Shipton and Burnet Companion moths.
To complete our circular walk, we headed back downhill, this time taking the track on the southern side of the site, passing close to the back gardens of houses in Kennford and Wadham Close, and following the wide track along the ridge of the water-stressed banks overlooking Wallace Road, to finally exit the site near to the Total garage on Birmingham New Road. As we descended a Holly Blue was seen and a Brimstone flew swiftly by. Last year small Alder Buckthorns were planted here, with the hope that once they have established Brimstones might breed here.
Today’s visit had been very rewarding with nine different butterflies recorded; Brimstone, Common Blue, Green Hairstreak, Green-veined White, Holly Blue, Small Copper, Small Heath, Small Tortoiseshell, Speckled Wood, and also the larvae of Orange-tip butterfly on the two main foodplants of this butterfly, Lady’s Smock and Hedge-garlic.
Several moths were also seen today, Angle Shades, Burnet Companion, Cinnabar, Mother Shipton, Small Magpie, and two micro-moths, Ruddy Streak, and Cranbus lathoniellis. Additionally, both larvae and their papery cocoons attached to grass stems of Narrow-bordered Five-spot Burnet and possibly Six-spot Burnet moths were seen in places.
As to be expected, many other invertebrates were also seen. Harlequin Ladybird, 7-spot ladybird, 14-spot ladybird, 16-spot Ladybird, 24-spot Ladybird, Violet Ground Beetle, Umbellifer Longhorn Beetle, Thick-legged Flower Beetle, Cardinal Beetle, Common Red-legged Robberfly, Batman Hoverfly, Grey-backed Snout-hoverfly, Thick-legged Hoverfly, Barred Ant-hill Hoverfly, Empis tessellata, Tipula luna, Dock Bug, Bishop’s Mitre Shieldbug, Hairy Shieldbug, Tawny Mining-bee, Ashy Mining-bee, Red-tailed Mining-bee, Honey Bee, Tree Bumblebee, Red-tailed Bumblebee, Common Carder Bee, Early Bumblebee, Buff-tailed Bumblebee, Orange-legged Furrow-bee, Buathra laborator, Yellow Meadow Ant, Azure Damselfly and Common Blue Damselfly.
The small mammal-trapping event on Portway Hill a couple of weekends ago went really well despite us only catching one Wood Mouse on this occasion. Everyone who attended was given the opportunity to set a trap and a total of 12 Sherman traps and 3 Longworth traps were placed in the vegetation along the track through the old quarry and on the Wildlife Trust site. In each trap we placed a handful of sheep’s wool for bedding, and baited the traps with a mix of seed, cucumber, castors, lettuce and a small piece of cheese. The location of each trap was marked so that when we returned the next morning none of the traps were missed. They were then left in place overnight.
At 8am on the Sunday a group of 10 people showed up. Our initial disappointment at not catching anything in the first few traps turned to joy when a trap was retrieved containing a Wood Mouse in pristine condition. We carefully transferred the mouse into a small, transparent lidded bucket which was held up so that everyone could get a good look and take photographs. The mouse obliged by sitting there eating seed that had been transferred from the trap into the bucket with him. Although the bait was missing from two of the other traps on this occasion the trap-doors had failed to close.
After safely collecting up all of the traps we headed up the hillside in the direction of the radio masts to look for signs of mammal activity beneath some onduline roofing sheets that had been put down earlier in the year in the hope that any reptiles on the site might find refuge beneath them. No small mammals were detected beneath any of them but several little woven-grass nests constructed by voles were found.
Of the other wildlife we saw over the weekend the biggest surprise was a very late-in-the-season Speckled Wood butterfly, seen on the Saturday flying across the Wildlife Trust land. Buzzard, Kestrel and Sparrowhawk were seen overhead, and despite it being so late in the year, many of the hillside’s wild flowers were still in bloom, including Dog Rose, Yarrow, Burnet Saxifrage, Groundsel, Oxford Ragwort, Common Ragwort, Bush Vetch, Common Cat’s-ear, Tall Mouse-ear Hawkweed, Oxeye Daisy, Common Toadflax, Shepherd’s-purse, Smooth Sow-thistle, Red Campion, Red Clover, Black Knapweed and Weld. The exceptionally dry June and July followed by a mild autumn may have had something to do with this.
There has also been a change to the dates of the Wildlife Trust’s volunteer days in December – all the most up to date information is on our Events page so make sure you check there before heading out!
Here are a few photos from the mammal trapping event, with thanks to Andy Beaton for taking these.
Tom Hartland Smith, Senior Conservation Officer at the Wildlife Trust for Birmingham & the Black Country, recently wrote us this summary of the past few months’ events on the Rowley Hills:
If you have not managed to come along to any of the events and volunteer days over the last few months you will have missed out on an exciting look into what moth species we have on the hillside, of which the Chinese Character Cilix glaucata was a first spot for me, but all the moths on the hillside were new records for the site – how exciting! The glorious early morning bird walk for International Dawn Chorus day was a great success and we were rewarded with a lovely sunrise with spectacular views and delightful birdsong throughout. We also had another successful and delightful butterfly walk where we were greeted with a kaleidoscope of butterflies on a hot summer day. On one of the volunteer days we popped out some new reptile mats which we have positioned to gauge if there is a population of reptiles on the hillside (no joy yet but still checking).
During the regular volunteer days we have worked on opening up some of the public rights of way, re-installing PRoW way markers and tidying up the site when we can. We’ve also been monitoring the meadow in which we found Common Spotted Orchid, which is a first for the hillside, and spreading Harebell and Yellow Rattle seeds as well as introducing Alder and Purging Buckthorn to try and increase these food plants for the Brimstone butterfly.
A new replacement interpretation panel has been purchased and is ready to be installed on the cairn on one of the upcoming volunteer days. Myself and Mike Poulton are going to be meeting to sort out doing some small mammal trapping; information about this will be posted on the Friends of Rowley Hills website in due course. If you are interested in getting involved in the surveying of small mammals on the hillside, please email email@example.com.
I hope you are all well and thank you all for making such a massive impact on a cracking site. I always look forward to the volunteer days and events on Portway Hill, as the hillside and people have so much to offer.
We’ve got a big task to achieve on our next volunteering date, Saturday 20th October – why not come and join in? We need to clear all the mown grass off the wildflower meadow on Portway Hill – this will prevent it from rotting back into the meadow over the winter, helping to keep soil nutrient levels low to encourage a greater diversity of wildflowers. Meet on St Brades Close; ensure you are dressed appropriately for the forecast weather conditions, and wear sturdy footwear. You will need to bring along a packed lunch but tea, coffee and biscuits will be provided. No need to book, just turn up!
Here are a few photos from one of our recent volunteer days where we restored a public right of way marker that had been vandalised.