25 August, 2014

Migrants

Despite the breezy conditions, a recent flowering of Golden-rod has attracted an impressive number of migrant butterflies to Skokholm. The first Clouded Yellow of the year joined dozens of Painted Ladies and Red Admirals already nectaring on the flowers a couple of days ago, further emphasising the current colour scheme across the island...

Clouded Yellow

Painted Lady

Red Admiral

It's an exciting time of year, with migrant birds also beginning to pass through. The last couple of days have seen Garganey, Osprey, Pied Flycatcher, Yellow Wagtail, Tree Pipit and a Water Rail turn up, and everyone is feeling a sense of anticipation for what could be lurking in the next bush.

This Pied Flycatcher was sheltering on a cliff face below me whilst I watched the last few Puffins enter their burrows with fish. Not a pair that often come into the same binocular view.

13 August, 2014

Hurricanes and Convolvulus Hawk-moths

The tail end of hurricane Bertha hit Skokholm on Saturday night as forecasted, bringing with it some pretty impressive weather. The wind and rain combination was relentless for the best part of a 24 hour period; filling up the ponds, stirring up a huge sea swell and leaving the island with a completely new 'autumnal' feel about it that I haven't previously experienced.

The wildlife has also made a noticeable turn to the autumnal, with an "interestingly large hawk-moth" found inside one of the observatory's heligoland bird traps by our 'stranded' guest ringer yesterday morning. Walking into the kitchen to find a Convolvulus Hawk-moth staring back at me from the inside of a pint glass is certainly one of the more surreal wildlife encounters I've experienced, but I'm not complaining... it's one of my dream moths!



12 August, 2014

Tebenna micalis



Tebenna micalis

Continuing the recent run of island moth 'firsts', Tebenna micalis was a surprising find in a small, sheltered coastal gully a couple of days ago. As well as being a notably scarce migrant to Britain, it has also got to be one of the most beautifully pattered moths I've come across yet- lovely iridescent markings and a wing-shape shared by no other British species.

The South Haven gully stream is a gem of a spot to search for rare invertebrates on Skokholm- tucked away off the main track, sheltered from harsh westerlies and flourishing with Common Fleabane (the larval foodplant of Tebenna micalis!) and Water Mint- I could (and do) spend all day in there.

09 August, 2014

Island update


With the passing of July comes the inevitable drop in seabird activity on the Skokholm cliffs. The auks have been disappearing from their breeding ledges since mid-July, but I still wasn't quite ready for the complete exodus of Guillemots and Razorbills that has taken place so abruptly, with the last couple of chicks fledging last week.

It's hard to imagine that only a couple of weeks back I was spending much of the dark hours on the moonlit cliff-tops, watching on in awe as Guillemot chicks reluctantly threw themselves towards the beckoning calls of their parents sat hundreds of feet below on the water. It was magical to watch, but also horrifying at times. I couldn't help but grit my teeth at the sounds made as chicks jumped off their small, awkward ledges- bouncing off boulders on their way down and often falling into seemingly inescapable crevices, only to reappear moments later by their parent's side; both birds wasting no time in quickly swimming out into the open ocean.

Their absence has left the coastal paths eerily quiet, with only the odd noisy Chough or alarm-calling Common Sandpiper to accompany the sound of waves beating against the shear cliffs. Rock Pipits still flit about amongst the last of the summer's flowering Sea Campion- most pairs having now fledged young- whilst the beautifully scented Sea Mayweed has acted as a convenient food source for hoverflies and other invertebrates, many no doubt newly arrived in off the sea.







With the Puffins and Manxies at their most active during July, the Farm has been brimming with visiting guests, photographers and ringers. July mornings were very much dedicated to the general maintenance tasks needed to keep the island looking in shape, but with the toilets (and various other facilities!) emptied and cleaned by mid-morning, the rest of the days could be spent ringing Puffins, gulls & Manxies, helping out with various Storm-petrel monitoring projects or just appreciating walking the coast.

It is sad to watch as the cliffs empty of seabirds, but on the other hand it's exciting to be able to look forward to the possibilities that late-summer and autumn will hold for migrant birds and moths. The likes of Cory's Shearwater and Short-eared Owl have already turned up so far this month, and new moths for the island database are disturbed from the cliffs on a daily basis.









Sitting here outside the cottage (the same cottage outside which Ronald Lockley carried out some of the world's first seabird studies back in the 1930s), clinging on to the little internet connection available whilst listening to Manxies calling all around me in the darkness, it's surprisingly hard to fully summarise the first month's worth of island life. Try as I might, I can't find the right words to describe the character of the island during high-summer; character shaped not only by the fantastic bird fauna and the awe-inspiring landscape, but also by the different folk I find myself mingling with week after week, each sharing the same relatable passion for remote places and nature, and each bringing with them a refreshing element of knowledge and enthusiasm to the observatory.


It's an exciting time of year, and we've got a potentially epic week of Lighthouse seawatching ahead of us if this storm hits. Watch this space and keep up with the Skokholm Blog!

01 August, 2014

Skokholm stuff

Many, many bird-related things have been going on in the past few weeks here on Skokholm- too many things to sum up in one quick post at 1am after three consecutive nights of Manxie/Stormie ringing (and thus no sleep!). A more detailed write-up on the way soon, but for now here are some moths (of which there have been plenty)...

Broom Moth

Dolicharthrica punctalis

Diamond-back Moth

Mullein Wave

Crescent Dart

Agriphila selasella

Garden Tiger

The wind and waves are set to pick up tomorrow- not great for a guest changeover boat but perfect for watching these guys at sea. Embarrassingly clumsy and dopey when they arrive back on the island each night, Manx Shearwaters are built to ride stormy seas. I feel breathless just watching them from the comfort of a hide...


Bring on the storm...


22 July, 2014

Skokholm-scapes

I feel privileged to be able to call this beautiful, unassuming island my home for the next few months...











14 July, 2014

Skokholm moths

Thrift Clearwing

Much of my day on Skokholm is spent monitoring seabird colonies, with a particular emphasis at the moment spent studying breeding success in Fulmars and providing assistance with the ongoing Storm-petrel tape playback sessions around the island in an effort to understand more about the island's breeding population of Stormies. 

When the time allows, I've been keeping a butterfly net close at hand in an effort to catch, identify and ultimately increase the coverage of the island's (rather poorly known) micro moths. There have already been some quality finds including a sprinkling of new island records. My walk around the Fulmar study plot takes in some fantastic sheer cliffs, with lush colonies of Sea Campion and Thrift and the specialist moths that depend on them. Thrift Clearwing took a while to find, but eventually showed beautifully on a recent sunny morning, and Caryocolum vicinella was a nice find in one of the cliff-top hides...

Caryocolum vicinella

Anania crocealis

Eudonia lineola

Aethes rubigana

When the weather, time and fuel allows, I'm hoping to whip out the big Mercury Vapour trap for some hardcore island moth-trapping. Watch this space...

08 July, 2014

Coastal lichens

Another calm & sunny, if slightly busy morning yesterday on Skokholm saw the departure of the Cardiff field group and their many bags of luggage back to mainland Pembrokeshire. Whilst it was sad to say goodbye to a great bunch of folk and the fantastic Storm-petrel monitoring equipment they had bought with them, it was also nice to welcome a new set of faces ready to enjoy the island. One of the great things I've found about island life is the variety of different characters you get to meet as the weeks go by, each travelling for a different reason and each with their own interests to share.

This week we've been joined by John Jones, a 'lichenologist' who's been studying the species of Skokholm for the past 20 years; running various island field courses throughout his time. You can't walk the cliffs without appreciating the array of low-growing plants, lichens and mosses all tucked away in various crevices, so it was fascinating to be able to learn a little more about them in the presence of an expert. Upon arrival, he wasted no time in pointing out the beautiful Golden Hair Lichen (Teloschistes flavicans) and Roccella fuciformis on a nearby stone wall- two of the rarest lichens in Britain just metres away from our rooms!



You really do learn something new everyday in this place.