Wednesday, 21 June 2017

Trixie little seal

On the 29th of May, almost one month ago, we noticed a seal with an orange flipper tag in North Haven. We worked hard to read the tag and get photos so that we could find out where it came from and discover more about it.

Orange 80191
Orange 80191 was born in Devon last year so is only just over half a year old. She (yes apparently she is a female) was picked up in Salcombe late last year and was released on the 7th of February this year at Combe Martin, North Devon. The RSPCA staff that rehabilitated her named her Trixie during her stay with them in Devon. Seals move around a lot and it is not particularly surprising that a seal can make it from North Devon to South West Wales but what will be interesting is what happens to Trixie next. Where will she go now, when will she start breeding and where will she pup?


Trixie the Devonshire seal

Trixie seems to be quite a curious seal and habituated to humans. She often comes up to the boat dropping off passengers at the steps in North Haven and will swim around our little tender as we come and go from the beach. She seems to have a favorite little spot for hauling out on the western side of North Haven between the steps and the beach where she likes to watch the Puffins.

Curious seal
Trixie watching Puffins in North Haven
Hopefully the code on the tag will stand up to the wear and tear that Trixie will inevitably put it through and more can be learned about her and Grey Seals in general. If you have any sightings of Trixie or any marked seals please report them to us at https://www.welshwildlife.org/contact-us/




Monday, 5 June 2017

People, Puffins and Pembrokeshire Potatoes

June is the month of the "Ps" with people watching Puffins and us enjoying the new Pembrokeshire potatoes.

People: The end of May and beginning of June saw some amazing days with calm sunny weather and hundreds of people visiting the island.


photo by Pia Reufsteck
Puffins: The Puffin eggs have hatched so the adults are now bringing in fish - sometimes more or less successfully.


Pembrokeshire Potatoes: Finally the long awaited Pembrokeshire New Potatoes are ready to be harvested. Every year Treehill Farm, just up the road from Martin's Haven, kindly give us seed potatoes so that we can grow our own on Skomer and on top of that they often throw in a bag of their produce - just to make sure we don't starve over here.


before...
...and after

Unfortunately I don't grow enough potatoes to share them with our visitors but luckily Peter and Gina Smithies from Treehill Farm do and they have a little stand next to the road between Marloes village and Martin's Haven. So go and get yourself a bag next time you are visiting Skomer!





Bee
(Skomer Warden)



Wednesday, 24 May 2017

Wise owls

Our Short-eared Owls and Little Owls have never been easier to see and pretty much every single visitor to the island in the last week or so has had amazing views of either a shortie, a Little Owl, or both. Often multiple shorties can be seen at the same time, mostly hunting or heading back to young with a vole, on the ground or perched on a fence post, or sometimes circling high over the island. We reckon that eggs started hatching around the end of the first week of May and since then the activity of the adults has gone through the roof. At least four pairs of shorties are nesting this year, as well as the usual pair of Little Owls. They have become quite habituated to people, hunting and flying extremely close as they go about their business, offering fantastic photographic opportunities.

Little Owl on Micks Skomer Vole study plot markers

Can you spot the little owl?

How about now? - Little owl on one of the old walls.
Shorties providing great views for visitors, volunteers and Staff, photo by Trevor Greaves
Short Eared Owl hunting over the bluebells just in front of North Pond public hide.


People enjoying great views of owls and Skomer's other wildlife
The Short-eared Owl chicks are growing fast on a diet of Skomer Vole
It seems to be quite a good year for shorties, at least in Pembrokeshire, as Ramsey have two nesting pairs for the second year running and Skokholm have the first nesting pair in recorded history. So it's never been a better time to see these wonderful birds in the wild.

Monday, 8 May 2017

Digging up the past

Skomer Island is not only a wonderful place to see wildlife but it also the place to see an amazing array of pre-historic remains - one of the best preserved remains in Britain.

Toby Driver showing flint tools at the Harold Stone

On the 27th of April we organised a history walk and Louise Barker and Toby Driver from the Royal Commission on the Ancient and Historical Monuments of Wales were our guides. We were very lucky that the walk went ahead as it had to be postponed the previous day due to strong northerly winds. However, the weather last Thursday was good even though there was still a rather chilly northerly breeze blowing.

The history walk participants walking through fields of Bluebells and Red Campion in the sun

Eighteen participants enjoyed walking around the island and delving into pre-history with Toby and Louise bringing the past to life: we could nearly smell the Iron Age cooking fires and hear the cattle mooing.

Pretending to be Iron Age people in the roundhouse at the Wick

One of the sites we visited was the roundhouse at the Wick. Archaeologists believe that this circular structure was once an Iron Age roundhouse, home to some of Skomer’s earliest settlers. You can still walk in through the original front door. Probably belonging to a farming family, this roundhouse would have been used for cooking, eating and sleeping, as well as providing shelter from the elements. The roundhouse sits at one end of a rectangular paddock, and is located within an extensive prehistoric field system which crosses The Wick.

While this hut is the clearest and most accessible, there are many more similar structures dotted around the island. Some are too small to have been used as homes, and are believed to have been used as storerooms instead, perhaps for crops or fuel. One theory is that some could even have been used as sweat lodges - the prehistoric versions of saunas!

Louise explaining to the guests what the team of archaeologists found at their last excavation in April 2017
In 2014 Louise and Toby's team of archaeologists started to excavate some of the remains in order to date them and to gather more information about the former inhabitants of Skomer.  

Between 5th-8th April 2017, the Skomer Island Project Team undertook another excavation on a deep field lynchet in the southern part of the island. It is hoped that charcoal and luminescence samples (by Aberystwyth University) taken from the lynchet may help to establish absolute chronological markers for key phases in the development of the Island’s fields and settlements, while further environmental sampling (by Cardiff University) will allow the more accurate reconstruction the environmental history of the island. For more information and photos of the dig see here.

Bee
(Skomer Warden)


Wednesday, 3 May 2017

Bluebells in Bloom

Spring has burst into colour on Skomer, and the bluebells are looking spectacular. I went for a short walk this afternoon and ended up taking over 200 photos (including those below) trying to capture the beauty of the island!
North Valley is carpeted in bluebells

One of the reasons why Skomer bluebells look so spectacular is the unusual ecosystem dynamic. Bluebells are generally found in deciduous woodland areas, and emerge so spectacularly in early spring as they have evolved to complete their life cycle before the trees have come into leaf and the light levels drop.

Day visitors are treated to a carpet of almost knee high bluebells near the Garland Stone
But as you will see, and anyone who has been to the island knows, there aren't any trees on Skomer. On the island the bracken acts in the place of the deciduous trees, shading out other plant competition through the summer, allowing the bluebells (and to a lesser extent red campion) dominance in the spring.
Due to the fragile ground, visitors have to lie across the path to take close ups and low angle shots of the flora.

Walking towards Captain Kites and looking over the Neck
 If you'd like to see the beautiful colours for yourself we are open every day apart from Mondays (but we are open on bank holiday Mondays). For more information click Here.
Looking across South Haven from the path between High Cliff and South Stream.

The puffins at Welsh Way have one of the most scenic neighbourhoods with bluebells, red campion and sea campion.

See you soon!
Sarah (Assistant Warden)

Friday, 28 April 2017

Crabs, Anemones and Cornish Suckers (Shore Clingfish)

If you keep up with the Skomer Island Blog, you'll have already been introduced to one of the Long Term Volunteers, Thom. I am the other LTV for the April-July period, I'm a 21 year-old Marine Biology graduate from the University of Liverpool and my name is Ruby Temple-Long. Having the amazing opportunity to gain experience working on the high profile nature reserve of Skomer Island coincides with my year out from study, before I head off to Scotland and the University of Edinburgh to complete an MSc in Marine Systems and Policies.

I have volunteered with a wide range of organisations before the Wildlife Trust of South and West Wales including; Greenpeace EU Unit, Wildlife Sense Kefalonia and Gloucestershire Wildlife Trust (Snows Farm Nature Reserve and Stroud Wildlife Surveys).

The experiences mentioned above have all been extremely interesting but they aren't comparable to the unique four weeks I've already spent on Skomer. I was attracted to the island by so many things, but the parts that stood out the most were the vast array of species that can be found here and the numerous elements of practical research you can get involved with. Having a passion for marine species, my interest was sparked when I discovered the diverse range of seabirds and marine mammals that you may encounter on the island. I had been told that Atlantic puffins could be an almost everyday occurrence in the right season (and weather), and that nearly half the world’s population of Manx shearwaters come here to breed!

I arrived with little knowledge of birds but would like to think that I am learning more about the species we see passing through each day, and by the end of my three months may even be a budding amateur ornithologist! Already I have seen (or been shown) the common species on Skomer such as; Puffin, Chough, Kittiwake, Fulmar, Peregrine falcon, Short-eared owl and Swallow. In addition to the more unusual species such as Black redstart, Cuckoo, Snipe and Common sandpiper.

Black redstart at the Farm

The island is starting to get a little busier now with more researchers arriving and therefore more surveys to complete, but a few highlights from the past week were as follows. Each year the Trust undertakes a whole island Puffin count and on our first survey we found a record number of individuals, an astonishing 25,000! Thom and I were really pleased to be treated to a trip out to The Smalls with one of the trustees and on our voyage were greeted by a pod of Common dolphin that rode the bow of our rib for a while, with a small calf leading the way! Recently we were able to help some PhD students from Oxford University collect data for their study of Manx shearwaters which they return to Skomer each year to continue. The students are looking at the changes in the bird's body condition over the breeding season which includes monitoring a number of the same burrows each year and weighing certain individuals. They are particularly interested in those with geolocators as they are able to track their movements at sea and can learn more about how parents coordinate their foraging trips to feed the chicks.

With my main interest being ocean dwelling species, I often spend my time around the coastal cliffs and get down to North Haven beach wherever possible. Those who have visited Skomer will be familiar with the seals of North Haven beach that cover the rocky shore and the one particularly cheeky male that often commandeers our Zodiac! They are likely to have even been one of the first animals you saw as you pulled into the landing! Because of the dense seal population on North Haven, access to the beach is restricted to avoid disturbing a visitor favourite! However, from the short periods time I have been able to explore the intertidal zone I have found a variety of exciting coastal British species which I thought I would tell you a little more about...

North Haven beach 


An impressive 62 species of crab have been recorded in waters surrounding the British Isles. To be called a crab, an animal has to have ten legs, two of which have evolved to form to powerful pincer-like claws (or chela) for feeding and fighting! and all but one species (Chinese mitten crab) are marine. Unlike us, crabs have an exoskeleton and therefore don't have bones, they grow by forming a soft shell beneath their current 'skeleton' which causes their hard shell to shed and when this happens they are much more vulnerable, so tend to stay under the cover of rocks and thick clumps of seaweed. I've come across the following species of crab on my rocky shore explorations; spider, broad-clawed porcelain, edible and shore.
   
Edible Crab
  I've also seen a number of anemones, which most of you will already know because of Finding Nemo! Anemones are relatives of jellyfish and coral and stick themselves to rocks waiting for prey to pass through their tentacles armed with barbed stinging cells (nematocysts). There are over 1,000 species of varying colours and sizes inhabiting oceans across the globe at a range of depths. Although some species can grow up to 1.8 metres across, the smaller species such as Beadlet, Snakelocks and Strawberry have been found on North Haven. Some Twin fan worms were also observed in a rock pool as was a Shanny beneath a large boulder at the waters edge! All of which are being taken down in my notebook and will be added to bird log under the 'other' section at the end of my stay.

Strawberry Anemone


Another animal that has been particularly abundant on my rocky shore visits is the Shore clingfish, which is the focal species for my personal project that I will undertake during my stay. The Marine Conservation Zone team from Natural Resources Wales suggested that I look at this fish as it is particularly abundant across the Pembrokeshire coast however, little is known about its seasonality and breeding cycle here. All of the team has been helpful, answering any questions that I have had about the important work they do collecting data in the surrounding waters of the Skomer Marine Conservation Zone (MCZ) and have given me some really useful guidance for my research project.

Shore clingfish
The clingfish is cryptobenthic, meaning it hides in crevices on the seafloor (beneath and between rocks). It's easily identifiable by its duck-like mouth and two blue spots (which remind me of opals) on the top of its head, on the bottom side it has specially adapted pelvic fins that form a sucker which is incredibly strong and anchors the fish to the surface of the rocks it inhabits. I will be looking at where the fish can be found across the shore and what time of year they are observed as well as life history traits such as spawning and egg development which has not been looked at on the shores around Skomer before.
Shore clingfish eggs

Shore clingfish and eggs

It has taken no time at all to settle in on Skomer with such lovely staff and so many people to learn from, in addition to the masses of wildlife that we are lucky enough to see there is never a dull moment. I'm looking forward to getting stuck into my personal project and Razorbill productivity survey now that Julie the Seabird Field Worker has arrived and hopefully I'll be able to give you more of an update on everything soon!

Ruby (LTV)


Friday, 21 April 2017

Skomer Spring Special 2017 Report

A guest blog this week from West Coast Birdwatching who ran our Spring Migration Special birdwatching weekend a short while ago. Another fantastic three days on the island! 



The first West Coast Birdwatching trip of 2017 saw Dave Astins & Toby Phelps take a group of 10 to Skomer Island, leading a ‘spring migration special’ on behalf of the Wildlife Trust of South & West Wales.  This was the 3rd spring in a row for this particular trip, and half of the participants had previously attended the autumn version – 2 in 2015 & 3 in 2016.  Repeat participants are always a good sign!
The 3-day trip started with the usual work of getting all our stuff from the mainland to Skomer, and all the way to our accommodation in the centre of the island at the farm.  Thankfully the tractor was working!

The 3 days that followed consisted mainly of sunshine (some rain to bring the migrants in might have helped), northerly winds (south-easterlies on the first day), plenty of tea & biscuits, lots of walking, chatting and learning how to identify all the birds we saw.  Everyone saw some new species.  We were lucky that the auks (Puffins, Guillemots & Razorbills) were on the island for the first 2 days, as by day 3 they had totally deserted!

Migrant highlights included a male Ring Ouzel, a Black Redstart, up to 3 Merlin, Grasshopper Warber, Sedge Warbler, Blackcap Chiffchaffs & Willow Warblers. Hirundines were on the move, with Sand Martins outnumbering Swallows, and just a handful of House Martins.  The numbers fluctuated from day to day, highlighting the difference the wind makes.  We also saw very few Manx Shearwaters after dark, due to skies being so clear, presenting danger to them coming ashore in such moonlit conditions – Great Black-backed Gulls hunt well at night in these conditions!

Skomer’s Short-eared Owls put on a show with up to 3 day-flying during our visit, and we finally caught up with a Little Owl on the 2nd day.