I decided to take advantage of this window of opportunity and made for my local Farmoor Reservoir at noon, hardly expecting to see much to get excited about but pleased to be away from the house.
At the back of my mind were a pair of European Stonechats that have set up a winter territory on the west side of Farmoor Two, the larger basin. I thought it would be nice to photograph them assuming they were still there.
Opting to not initially walk the central causeway I chose to go 'the other way', heading left around Farmoor Two and eventually return via the causeway. The sun was bright and low on the horizon, shining into my eyes as I turned left from the car park and set off along the perimeter track.A southeast wind, blew into my face, cold and strong enough to turn the reservoir's waters into a corrugation of small waves that came to slap futilely against the shelving concrete at the water's edge.
A huddle of four Little Grebes had found a sunny spot by the wall of the valve tower where the water was less troubled and were whiling away the hours, preening or fussing amongst themselves as they ceaselessly bobbed up and down, their tiny bodies made even more rotund than usual by feathers fluffed against the chill wind, their tailess bottoms like powder puffs.
All four remained in a winter plumage of unexceptional and varying shades of buff brown, the only striking feature being the pale lemon yellow adornments at the base of their stub like bills
Today I counted twelve, in three groups of four each, which is a good number for Farmoor and whilst standing watching them going about their day I pondered if this comparatively high number reflected the fact that most were migrants rather than overwintering birds, making their way back to their breeding locations.They will certainly not breed here as only one pair to my knowledge do so and that is on the small Pinkhill Reserve at the western end of the reservoir beside the Thames
Leaving the grebes to enjoy their sunny spot I moved on a few hundred metres to where the perimeter track curved to the right around the southeastern edge of the reservoir, stopping to admire a small gathering of Coots and Tufted Ducks. These two are often found in association as the reservoir is overrun with the invasive quagga mussel which the Tufted Ducks dive for and the Coots try to steal from the ducks when they surface with a mussel.
The ducks, wise to the Coots motives, mainly swallow the mussels underwater but those that they bring to the surface are often stolen by the Coots.The Coot's bill is not substantial enough to open the mussel but the attraction for the Coots is the weed that adheres to the shell of the mussel. On gaining a mussel the Coot will bring it to shore in order to pick at the weed which it removes and eats
This arrangement seems to work and both the Coots and Tufted Ducks for the most part exist in harmony.
At the peak of winter there can be hundreds of Coots wintering here and the same goes for the Tufted Ducks but now the numbers have decreased as wintering individuals move away, heading back towards their breeding areas. Some Tufted Ducks can go as far as Siberia, the Coots maybe not so far but no one can say for certain.
Today a Coot and a male Tufted Duck were taking time out to rest on the concrete shelving which is not an uncommon sight, when later in the day parts of the reservoir are less frequented by human visitors.
As the winter progresses the birds inevitably become familiar with the now regular and increased passing of people on the perimeter track, using the reservoir as a safe leisure facility and can be approached quite closely without being unduly alarmed. It never fails to disappoint me how many people just walk by ignoring these birds that normally they would not get so close to. Stop and look if but for a few seconds. I can guarantee you will feel a benefit.
The two males pictured above show a marked difference in the length of their tufts |
I read somewhere that one can tell older male Tufted Ducks from younger ones by the length of the tuft.How true this is I do not know but a cursory inspection of some of the males today certainly demonstrated that their tufts varied considerably in length
I moved onwards, coming to a metal pontoon used by the yacht club, two thirds of the way along the southern bank. I stood in contemplative mood looking out across the blue waters to the distant causeway opposite. From the corner of my eye I saw a small wader fly from the concrete shelving to the left of where I stood and out to the pontoon jutting out into the reservoir. I knew what it was or at least had a strong suspicion that it was the wintering Common Sandpiper that has decided to forgo the hazards of flying to its Southern Hemisphere winter home in Africa and risk toughing it out at Farmoor in the Northern Hemisphere. The risk seems to have paid off as it appears in robust health and hopefully the worst of our winter has now passed. Questions inevitably arise, the most obvious being whether this bird's unusual presence is a sign of increasing global warming. but more esoteric is why does one individual such as this decide to ignore its genetic programming and not travel to its normal winter quarters thousands of miles south. There is still so much we do not comprehend about birds and why they do what they do.
This is the third year in a row that a Common Sandpiper has wintered at the reservoir. Some have suggested that it has been the same individual in all three years but I think not. For the first two years a Common Sandpiper favoured the filter beds on the far side of Farmoor 1, the smaller basin and remained faithful to them to a greater extent throughout both winters. So possibly this was the same individual in both winters. However this winter the Common Sandpiper has mainly favoured the southern and western parts of Farmoor 2 and has to a large extent remained loyal to that area.Whatever the answer and I guess we will never know, I feel I am making an educated guess that it is a different individual this winter
The feeding opportunities along the concrete shelving has obviously been adequate enough to sustain this latest wintering bird even in the harshest parts of winter..The reservoir never freezes over and the water's edge remains free of ice and presumably retains enough invertebrate life to sustain the sandpiper.
Due to its prolonged stay the sandpiper has become much less wary than is normal for their kind. Common Sandpipers are without doubt one of the wariest of migrant waders that visit the reservoir and will flush well before you get anywhere near them.This one however is the opposite and will allow relatively close approach so I made the most of this happy circumstance while it remained on the pontoon. Eventually it flew to the concrete shelving by the water's edge and I left it to wander amongst some sleepy Mallards in its ongoing search for food.
I was by now nearing the stonechats favoured location, a decrepit plastic coated wire fence that runs along part of the western boundary of the reservoir but before I got there I stopped to check a group of Cormorants idling away the time on yet another of the yacht club's pontoons.
Cormorants are a regular feature here, virtually year round and you can hardly blame them as Thames Water conveniently stocks both reservoir basins with trout for the fishermen that pay quite a lot of money to come and catch them.There were around twenty birds on the pontoon, some asleep, others holding wings out to dry and most looked to be adults although there was one brown individual that must have been born last year. Cormorants do not breed or gain full adult plumage until they are three years old. Some of the adults were gaining their rather spectacular breeding plumage whereby a basically black, featureless bird becomes something much more varied and colourful.
One bird in particular was well advanced,with a head that was most noticeably different to its neigbours, the black crown and sides of the neck replaced with fine white feathering as if dusted with icing sugar.The cheeks also white contrasted with an area, (called the gular pouch) of reddish orange and olive yellow bare skin adjoining a bill mottled grey on the upper and white on the lower mandible Quite a dramatic transformation. Blue green eyes and wing feathers with an olive caste, neatly outlined in black added to the subtle beauty of a bird often derided as unattractive in appearance and clumsy in its action
The Cormorant at Farmoor that was in full breeding plumage and which I consider identifiable as of the British race P.c.carbo due to the acute angle of the gular pouch |
The Cormorants that come here are of two races Phalacrocorax.c sinensis colloquially called the 'Continental Cormorant' and P. c carbo the 'British Cormorant' and there appeared to be a mixture of the two on the pontoon. A not totally failsafe way to identify them is by noting the angle of the gular pouch which is more acute on carbo than it is on sinenis
Two Cormorants with possibly carbo on the left and sinensis on the right |
Colour ringed Cormorants are seen from time to time and two such examples in past winters were identified as coming from Wales and northern Scotland and indeed today there was one with a green plastic ring on its left leg but it was impossible to read the white inscription, try as I did to get a photograph, but the angles made it impossible to record the white lettering on the ring so I had to remain frustrated.
Now I made for the fence and its hoped for complement of stonechats.Would they be there? The answer was a disappointing and deflating - no. I could hardly believe it as they have been an almost permanent presence these last few weeks. They are partial to the fence as it provides an elevated look out on which to perch and drop down on prey in the open grass that lies below the fence on either side. Incidentally although these are a pair they will not breed here and may well split up and both pair with a different mate later at wherever they go to breed.
Not prepared to give up I walked through the gate that leads outside of the reservoir and down the zigzag sloping path to view the fence from the other side.Still nothing was evident to excite me and I resigned myself to not seeing them.
Taking one last glance at the fence through my bins, there appeared a distant tiny blob perched on top of the fence.It was as I hoped. A stonechat. At last.
Moving closer, much closer, I could see it was the male of the pair..He remained perched there for some time and eventually was joined by his mate that flew up from the ground below. I moved closer, intent on getting a photo or two of them but they were wary. Sometimes it can go either way with stonechats..Last year a similar pair on exactly the same fence allowed me to get very close but this year not so, although the female appeared more confiding than the male, who was very skittish and his nervousness clearly transmitted to the female.
European Stonechat -female |
I stalked them from both sides of the fence but it was difficult and the outcome unsatisfactory. They would make long flights away from me and in some cases disappeared altogether only to suddenly re-appear much further along the fence. I got some images from long range and accepted I had to be content with that.Nevertheless it was nice to see them, watch their robin like behaviour and admire their jaunty personalities
European Stonechat - male |
European Stonechat- female |
My time was up but for the last two hours I had indulged myself in the natural world that is all around us and came away feeling content and fulfilled.
It is not always about rare birds