May 25th Bull Island Biodiversity Walk

On Sunday May 25th to celebrate Biodiversity Week 2014, (the theme of which is islands), IWT Dublin Branch had a walk on Bull Island to look at some of the diversity of creatures to be found in Dublin City's own UNESCO biosphere reserve. The walk was lead by Niall Mac Coitir and a variety of wildlife was found. There were wild flowers such as dove's foot cranesbill, and early purple orchid, and there were also birds such as meadow pipits and especially skylarks which put on a fine display with their singing.

Above all there were lots of creepy crawlies. The group saw the brightly coloured caterpillars of the white satin and yellow tail moths feeding on some of the native willow trees on the island, and the bright green beetle psilothrix cyaneus feeding on some oxford ragwort. A small pond along the way also revealed tadpoles, mayfly larvae, and whirligig and diving beetles. The walk ended with a short stretch along the seahore where some common seashells such as mussels, limpets, barnacles, razorshells and cockles were found. All in all a great example of biodiversity was on display!

Checking out the creepy crawlies on the native willow trees

A young IWT member holding a 'hairy Molly'
or 'Woolly Bear' caterpillar of the Tiger Moth

Looking at some wild flowers right beneath our feet

6th May Green Drinks - Return of the Eagle!

This month's topic was a dramatic one! The IWT Dublin Branch heard Ronan Hannigan talk about how in 2001, 100 years after the extinction of native raptors, the Golden Eagle Trust launched an ambitious reintroduction programme to bring birds of prey back to Ireland. The plan has met with widespread public support but also poisonings, shootings, opposition and setbacks. After a century, have raptors finally returned to the Irish skies? And are they here to stay? There are three programmes going on at the moment, reintroduction of the golden eagle to Donegal, of the White-tailed eagle to Kerry and the red kite into Wicklow.

Ronan Hannigan, who is Chairman of the Golden Eagle Trust, gave a funny, informative and eye opening talk about the two charities he established, the reintroductions he works on, and how two of our species of Eagle and the Red Kite are returning to Ireland after a long absence. Despite the setbacks, Ronan is optimistic that the reintroductions will succeed in the long term.

17th November - birdwatching for beginners at Booterstown Marsh

The Dublin Branch of IWT went birdwatching for beginners at Booterstown Sanctuary on Sunday, 17 November. Once again we were fortunate to have Sean Hogan (Birdwatch Ireland) as our guide for this event which attracted some 20 IWT members. As ever, Sean had everything well prepared; with background information about the marsh and its history, handouts containing information about the species in residence and good advice about bird identification guides and the best binoculars to use. We were very lucky to spot many of the birds that Sean had highlighted in his handout. All in all a very enjoyable few hours with very positive feedback from those in attendance.

Barbara 

Eoin leads the way

Looking out over Booterstown Marsh

I wonder where the birdies are?

Sean gives us the benefit of his wisdom

20th January Bull Island birdwatch

About forty people braved the cold and snow showers on Sunday Jan 20th to attend the IWT Dublin Branch's birdwatching event at Bull Island's causeway. The event was lead by Niall Keogh and Sean Kelly, who brought along a few telescopes for everyone to get a really good look at the wintering birds feeding on the mudflats.  Our persistence was rewarded with a view of some really beautiful birds, including ducks such a group of shelduck, and lots of teal and wigeon. Plenty of waders were in evidence too, such as redshank, sanderlings and godwits. Lapwings, plovers and oystercatchers were on show as well. Also in attendance was a hooded crow/ carrion (black) crow hybrid, which apparently is a regular visitor to that spot over the last few years. Ornithologists are divided on whether the hooded crow and carrion crow are different species or just variations of the same species, and our crow wasn't telling!

But the highlight of the day came near the end, when the cold was beginning to bite. Just by moving a hundred metres up the coast, the group were rewarded by the sight of a flock of pintails, amazing looking birds in their striking black/dark brown and white striped markings. All in all, well worth venturing out into the chill of January!

October 7th National Trails Day Cliff Walk

On Sunday October 7th the Dublin Branch celebrated National Trails Day  with a scenic cliff walk from the Waterside Hotel, Donabate to Portrane. It was a gloriously sunny morning with a great turnout of about eighty people, to walk along what is considered one of Dublin’s most scenic walks, with a great view of Lambay Island, Howth and the rugged coastline itself. 

The first birds we saw were oyster catchers and turnstones running along the rocks, and as the tide was in, waders like curlews and godwits feeding in the fields to our left. A lone heron also was hunting in the field - perhaps looking for mice! We were also joined by a solitary grey seal who observed us at various points as we walked along.  A nice variety of seashore wildflowers was also visible on the path as we walked along, like the sea spurrey in the picture blow. 

The best birdwatching was found when the group reached the shoreline under the Martello Tower in Portrane. Along with a few cormorants sunning themselves with outstretched wings on the rocks, we also saw a guillemot in its winter plumage. This confused some of us initially as the chocolate brown summer head colouring is replaced with much more white in the winter. With the aid of a telescope the group also identified a red throated diver out in the water. Various species of gulls and terns were also spotted overhead, and visible in the distance was the island of Rockabill near Skerries, where most of northern Europe's population of roseate terns go to breed. A stonechat with its orange breast was also glimpsed on the rocks around the group, which was a good thing to see as their population has crashed due to the two very bad winters we had recently. 

As the group headed back to Donabate the sky clouded over, but the rain held off and overall, everyone was happy to have seen some of the amazing birdlife that Dublin's coastline has to offer!

Photo courtesy of Joy

Sea Spurrey - courtesy of Joy

The shore below Portrane Martello Tower - courtesy of Joy

21st April Booterstown Marsh

Time and date: Saturday 21st April, 11:00
Meeting point: Outside Booterstown DART station

A goodly number of IWT members turned up for this event led by Conn Flynn, our Conservation Officer, who was ably assisted by birding enthusiast Arthur Doyle. Before walking around the sanctuary Conn talked about the importance of the marsh for birdlife and he also gave us a brief account of its interesting, somewhat chequered, history. The site which is protected under EU environmental legislation is described by some as a unique patch of wilderness within the confines of the city of Dublin.

Beside different species of waders (among them Redshank, Greenshank, Godwit) and ducks (teal, mallard) we spotted a pair of swans, some Brent Geese, a number of Grey Herons, two Little Egrets, a moorhen as well as some common urban species (Wren, Tit, Finch). We even noticed a swallow busily collecting mud for its nest. Altogether a most pleasant outing.   

Heron

15th April Bird Watching on Bull Island

On Sunday 15th of April about twenty IWT members turned out on the Causeway road on Bull Island for an event led by Sean Hogan, an experienced birdwatcher. The North Bull Island is a UNESCO Biosphere Reserve, RAMSAR site and a Special Area of Conservation. Sean had some telescopes on standby and those present got to see and identify Bar and Black-tailed Godwits in their reddish-brown summer plumage, Shelduck, Mallard, Little Egret, Teal, Curlew, Heron and Brent Geese among others.

Sean was a mine of information, and even those who thought they knew a thing or two about birds learned a lot that they did not know before. For example, unlike other ducks, Shelduck lay their eggs in burrows and later each year leave their chicks a hundred at a time in a 'creche' with one of the adults while the others head off to a safe offshore sandbank to moult their feathers. Sean also talked about the Little Egret which is a recent arrival to our shores, only having started to breed in Cork in 1997. Since then it has spread north through Ireland and can be seen regularly around Dublin Bay. The Bull Island and other tidal estuaries like it are a huge source of protein for seabirds, especially in winter. In fact each square metre of mudflat contains more protein than the equivalent size of rainforest! (Photos courtesy of Niall)



Sean in the blue wooly cap shows us the shelduck 

Sean also had some advice about binoculars and telecopes. The rule of thumb for binoculars is that when you divide lens size by magnification the result should be more than 5 e.g. lens size of 42 and magnification of 8. The crucial factor is the amount of light that the lens let in. A decent pair of binoculars can be got for about €100 - 150 and it is important to take the time to try out different kinds to find the one that suits, as each person's preference is different. Regarding telescopes good options are zooms lens with magnification of 20 to 60 or alternatively a wide angle fixed lens of about 32 magnification. A good one won't be got for less than € 200 and the sky is the limit for the more expensive ones.

The best guide books are 'Complete Guide to Irish Birds' or 'Pocket Guide to the Common Birds of Ireland' , both by Eric Dempsey, or the 'Collins Bird Guide to birds of Britain and Europe'

After seeing the birds of Bull Island the group crossed over to St. Anne's Park to hear some birdsong. Coal tits, wrens, robins and blackbirds were heard, and for a few moments there was great excitement when it was thought that woodpeckers had arrived in the park! Alas it turned out to be Grey Crows pecking at the branches of a nearby tree to get building material for a nest. Despite that minor disappointment the group went away very happy with what they had seen and heard, and a lot more knowledgable.

Sunday 29th January Bull Island birdwatching

On Sunday 29th January about fifteen members of the Dublin Branch braved the cold and the rain to attend a bird watching event led by birding enthusiasts Sean Kelly and Niall Keogh on Bull Island - Dublin’s well known nature reserve. They were rewarded for their efforts by seeing a variety of birds - lapwings, redshanks, black-headed gulls, knots, teal, shovelers and Brent Geese among them. Bull Island has an excellent range of coastal birds, especially its overwintering flocks which come to avail of the many invertebrates (worms and things)that live in the mudflats. Niall Keogh explained how Dublin's Brent Geese are unique because of their lack of fear of humans compared to the geese on the continent- probably due to the fact that they won't be shot on sight! So much so that they have been known to get in the way of golfers trying to play on the Island's golf courses. Dublin's Brent Geese have also taken to grazing on the city's open spaces and playing pitches in a big way, to the extent that this is now a major source of their food supply.
After about an hour the freezing cold and rain put an end to the outing, but enough birds had been seen to make it all worthwhile.