Sightings

Although there has not been a lot of migrant activity over recent days there are lots of birds around on the reserve at present. As someone said to me today “It is great if you like coots”, yesterday I counted 908 of them on Ibsley Water alone.

Rather more interesting to most visitors though will be the juvenile black tern which has been over Ibsley Water for the last four days. Both great white egret have been seen daily, but the cattle egret seem to have departed, without my ever managing to see one. A few wildfowl are starting to arrive with up to 12 wigeon on Ivy Lake and a few teal and shoveler to be seen on both Ibsley Water and Ivy Lake.

Locking up this evening I estimated at least 800 house martin over Ibsley Water with a very few sand martin, if there were any swallow I could not find them.

Advertisements

Birds, Beetles and Butterflies (and a bit more besides)

We are slipping into autumn, despite the weather remaining warm the signs are everywhere. Berries are ripening and birds are on the move. Over the last few days there have been between 500 and 1000 house martin over Ibsley Water, gathering before migrating south. On Ivy Lake numbers of winter wildfowl are starting to rise, at least 12 wigeon and 18 shoveler were there on Sunday and last week 3 pintail dropped in. In fact overall numbers of wildfowl are very high for the time of year, probably due to good weed growth.

Any visitor to Ibsley Water recently cannot have failed to miss the large numbers of cormorant and heron. They are feeding on the huge numbers of small common carp, a fantastic spectacle, but a sign of problems ahead. Such large numbers of small carp will grow into a very large population of medium sized fish which are likely to largely eliminate the weed and eventually most of the food for wildfowl.

Another very obvious feature at present is the lace-like leaves of the alders, they have been eaten away to skeletons.

alder leaves eaten

alder leaf eaten away by alder leaf beetle

The alder leaf beetles that are responsible are a striking metallic blue and were considered as an extinct species in the UK until just a few years ago, however their status has changed dramatically in the last few years and they are now not just present but super abundant. They seem to be everywhere at the moment and almost every alder leaf has been eaten away and they seem to have been eating hazel and even birch as well. Quiet why they have undergone such an extreme change in fortunes is something of a mystery.

alder leaf beetle

alder leaf beetle Agelastica alni

We are now heading into autumn and the moth trap is starting to catch species typical of the season, perhaps none more so than the aptly named autumnal rustic.

autumnal rustic

autumnal rustic

Another autumn favourite of mine is the intricately marked feathered gothic.

feathered gothic

feathered gothic (male)

The males use their feathered antennae to test the air for female pheromones, in effect using them to smell.

The main butterfly on the wing at present is speckled wood and they are very abundant this year, they are one of the few species that you can see throughout the season as they have a series of overlapping broods. Sometimes the first are on the wing before the end of March ans they can still be flying in November.

speckled wood

speckled wood

Autumn is also the fungi, actually they are to be found all year but many species are most abundant at this time of the year. When we were working today we came across a bright yellow patch on a log near the Woodland hide, but although many of the logs in that are are covered in fungi, this was not a fungus, but a slime mould called troll butter.

troll butter

troll butter slime mould

For those that like to venture up to the Lapwing hide in the winter or spring I have good news. The need to take the long way round or risk getting wet feet when the route through the reedbed floods will soon be a thing of the past, we are having a boardwalk constructed!

new boardwalk to Lapwing hide under construction

new boardwalk to Lapwing hide under construction

The White Stuff

A Red Letter Day for Fishlake Meadows today, we finally have some cattle on site! We had hoped they would be on much earlier and next year I am sure we will. They will be grazing in Ashley Meadow for the next few weeks, hopefully helping us to maintain the rich fen habitat.

English White cattle on Ashley Meadow

British White cattle on Ashley Meadow

As we were unable to graze the meadow earlier in the year we did take a hay cut from about half of the field.

Ashley Meadow

Ashley Meadow showing the boundary between the cut and uncut areas

The intention is to maintain a mix of tall and slightly shorter herbage with very few trees and shrubs. Such habitats are very rich in plants and as a result invertebrates. Mowing certainly can deliver this, but the act of mowing is rather dramatic, eliminating large areas of habitat at a stroke, by contrast grazing achieves a similar result but at a more gradual pace. Gazing animals will also favour some areas and species over others so the variability in height, what is known as the “structure” of the grassland will be greater.

When I was in Ashley Meadow preparing for the arrival of the cattle today I saw a good range of species including several very smart small copper.

small copper

small copper

There was a very interesting article in a recent issue of British Wildlife magazine which highlighted the effects of different grassland management regimes on spider populations and species. I have not managed to identify the one below yet, but I saw it lurking on a flower waiting for an unwary insect to be lured in.

spider

crab spider on fleabane flower

When looking at grassland management there are many considerations, should it be mown or grazed,or both, most hayfields are cut for the hay crop and then grazed later in the season. Traditional hay meadows were cut around or just after mid-summer and this favoured plants that set seed by this time like yellow rattle or which spread vegetatively. Modern grass cropping by silage making produces a much larger grass crop but the grassland is more or less a mono-culture, the land may be green but it is certainly not pleasant as far as most wildlife is concerned.

Once the cutting regime is settled there is grazing to consider, but not all animals graze in the same way, sheep and horses cut the grass short using their teeth, cattle rip the grass in tufts using their tongue to gather each bunch. The resulting grassland will look very different and be home to very different wildlife. Timing of grazing will also make a big difference, mid-late summer grazing tends to produce the most diverse flora, but this will vary with location and ground type.

Lastly different breed of animals will graze in different ways, our cattle at Fishlake are British Whites, a traditional bred that will eat grass but also likes to mix in some rougher sedge and other herbage as well as some tree leaves and twigs, ideal for a site such as Fishlake Meadows.

It was not only a white themed day at Fishlake, as I locked up at Blashford Lakes the view from Tern hide was filled with birds, in particular 13 brilliant white little egret and 2 great white egret.

herons egrets and cormorants

egrets, herons and cormorants

Ibsley Water has been attracting huge numbers of fish eating birds recently, with up to 300 cormorant, over 100 grey heron and the egrets, although I have failed to see them there have also been 2 cattle egret seen.

Ivy Lake has also produced a few notable records int he last few days, yesterday a bittern was photographed flying past Ivy South hide, far and away our earliest reserve record, but with the British population doing much better these days perhaps something we will get used to as young birds disperse. There have also been a few notable ducks, yesterday a juvenile garganey and today 4 wigeon , 3 pintail and a few shoveler as well as good numbers of gadwall and a dozen or so teal.

Just the Job

The Pop-up cafe was back and so were our splendid Blashford volunteers, for their first task of the new year. I had planned a hedge-laying task but the cold morning and brisk north-east wind caused me to rethink and look for a more sheltered work site. So we ended up clearing a patch of small willow, birch and alder that have invaded the boggy reeds at the top end of the Ivy Silt Pond. I had been meaning to do this task for a while but somehow other things kept pushing this down the list.

start

At the start

This is one of rather few boggy habitats we have on the reserve and it is home to a few species we do not have elsewhere, such as royal fern, bog myrtle and Sphagnum moss. I suspect all arriving there via the Dockens Water. It is amazing what five people working for a couple of hours can do!

end

At the end of a couple of hours work

We dead-hedged the material we cut, much quicker and less damaging than burning. Perhaps the most obvious thing int he second picture is the tall stumps, we usually cut at between knee and waist height, I know this will seem strange to many trained to cut stumps as low as possible, but I do have my reasons.

If we are working with handtools it is very difficult to cut very low to the ground, so cutting at this level is just easier. Low stumps are also hard to see when dragging cut material away so there is a trip risk, the taller stumps are easier to avoid. If I want to I can go round and cut them really low with a chainsaw once the site is clear, or I can treat them with less chance of missing any.  For some species such as birch and alder I have also found that fewer grow back at this height than if cut flush to the ground and then the remaining stump becomes a useful bit of standing deadwood.

Surprisingly on a day when visitors were complaining of the cold, it was very pleasant working int he sunshine and out of the wind and we all had to shed a layer or two to avoid overheating!

The reserve was busy with visitors all day and a good range of birds were to be seen, despite the wind. On Ibsley Water one of the black-necked grebe was close to Goosander hide for most of the day and I counted 129 pochard, a good count these days. A ring-billed gull was reported, but most of the duck were sheltering close to the northern shore.

Ivy Lake is much more sheltered and held at least one thousand wildfowl, including about 250 teal. There were also good numbers of gadwall and wigeon along with a few shoveler, pintail, mallard, coot and diving ducks. Walter the great white egret was also there during the day but seems to have found a more sheltered roost site than his usual exposed dead alder.

At the Woodland hide several brambling and a good range of other woodland species are increasingly evident. I suspect we may get good numbers later on in February and March.

Birds and a (mini) Beast

As promised here are a couple of excellent pictures of the avocet that dropped into Blashford Lakes on Monday, many thanks to Keith Beswick for sending them in.

DSC_0863 ps

Avocet by Keith Beswick

DSC_0922 ps

Avocet by Keith Beswick

What is immediately obvious is that this is a juvenile bird, the brownish feathers would be black in an adult. Juvenile birds tend to turn up in slightly unusual places as they learn about their environment and where best to be, this one will probably join the large wintering flock in Poole Harbour.

Signs of the changing season are all around now, opening the Tern hide yesterday I saw 8 shoveler, 7 teal, a wigeon (although this was probably the bird that summered with us), a shelduck and a garganey. There were also at least 3 common sandpiper and a green sandpiper. At the end of the day the lake was dominated by fish-eating birds with at least 50 grey heron, 6 little egret, 1 great white egret (“Walter”) and 195 cormorant.

During the day I was working with the volunteers on efforts to establish a grassland in the old concrete plant site, we are making good progress and I think it will be a valuable addition to the reserve. The new path is still not open yet as the necessary agreements with our landlords are still not in place. On our way back for lunch the volunteers found a splendid caterpillar, it reminded me of Dougal the dog, a reference that will date me for those who recognise it.

sycamore caterpillar

sycamore caterpillar

The sycamore moth is rather a dull pale grey species but the caterpillar is a wonderful creature.

Goodbye 2016, Hello 2017…

Another misty start to the day this morning, although by no means as misty as yesterday when from Tern Hide all that could be seen were the silhouettes of coot and a couple of pairs of goldeneye which were feeding close to the shoreline immediately in front of the hide.

This morning all of Ibsley Water could be seen, albeit through a misty haze, but most of the wildfowl was further offshore towards the north of the lake among the feathered leavings of the overnight gull roost which is now very extensive and covering a huge proportion of the lake by dusk. Evenings are also still seeing a “mini-murmuration” of a couple of thousand or so starlings, currently often settling in for the night in the reedbed in Ibsley Pond north of Lapwing Hide. What was immediately in front of the hide today, furtling around in the gravel for invertebrates, was a very obliging green woodpecker who would have posed beautifully for anyone armed with a camera had they been there (I just had a ‘phone)… Unfortunately by mid-morning what had started as a relatively clear day had soon disintegrated back into dense mist again… from Lapwing Hide you could just see past the end of the “spit” by about 11am!

A misty start. It didn't last!

A misty start. It didn’t last!

Look closely for the green woodpecker!

Look closely for the green woodpecker!

Ivy Lake was equally misty. No bittern or water rail when I opened up Ivy North Hide, although both species were obliging yesterday and later on in the day today. The water rail in the alder carr  opposite the Woodland Hide that Bob reported in the previous blog entry has also continued :

img_20161231_090919

At the Woodland Hide itself reedbunting and brambling (at least two) are still present along with the usual multitude of other species which makes a visit to this hide consistently enjoyable. Not that many decided to visit the feeder when I tried taking a picture during my “rounds”:

img_20161231_091549

There were mallard and shoveler in Ivy Silt Pond on the way down to Ivy South Hide where from the hide itself all the regular wildfowl could be seen, with some gadwall, wigeon and tufted duck all feeding (and in the case of the gadwall and mallard, very noisily and “splashily” displaying and setting up/defending pairings):

img_20161231_092112 img_20161231_092256

The relatively mild weather and now lengthening daylight hours are also bringing with it other signs of spring and the New Year – as well as ducks pairing up, the great crested grebes are apparently setting up territories on Ivy Lake and a great tit has been stridently calling out “teacher” on and off all day around the centre. A lovely early introduction of the bird song that is still to come and with that I’ll leave you with the welcome sight of the recently emerged snowdrop shoots ushering in 2017, a New Year and new beginnings….

img_20161231_094503

I shall post this now and update at the end of the day as necessary with anything particularly noteworthy for anyone heading out this way tomorrow to kick start their year-lists. I’ve been office bound this morning and for the early part of the afternoon but will be heading out a little earlier than usual to stretch my legs, beat the bounds and swap the 2016 sightings record books for 2017’s. Hopefully the mist will lift again so I can see something! Who knows, I could even finish the year with an otter! But probably not!

Unfortunately the weather is not looking too favourable for tomorrow so what is traditionally the reserves busiest day of the year visitor wise may not be…

However for anyone who does make it out tomorrow don’t forget that Nigel and Christine will be in the centre classroom with their Pop-up cafe from 10.30am-3.30pm tomorrow with hot drinks and home baked cakes, a proportion of the takings from which goes into supporting our conservation and access work on the nature reserve.

Happy New Year everyone!

 

Counting Day

Once a month we count the wildfowl on the reserve and also on the other lakes in the area to get an idea of how many there are and so how populations are fairing. Wildfowl are counted right across NW Europe once a month during the autumn and winter and this provides estimates of total populations and changes. In Britain the Wetland Bird Survey (WeBS counts) started in 1969 and now covers all our estuaries and inland wetlands. The counts we do of the lakes are actually in addition to the WeBS counts as we cover only the lakes, the full counts are co-ordinated along the whole valley from Christchurch Harbour northwards.

I started by counting Ibsley Water and from the Lapwing hide was greeted by the sight of a flock of wigeon grazing just in front of the hide.

wigeon

wigeon from the Lapwing hide

Despite this overall numbers of birds on the lake were not very large, probably due to a combination of relatively poor weed growth and the rather strong wind. One a factor that will depress numbers throughout this winter the other just weather, which can make a great difference to where the birds will be from day to day. Although not a bird for the count, I was pleased to see the water pipit on the cut grass heaps on the lakeshore, digging in the grass for insects.

The total number of waterfowl counted on all the lakes combined was just under 3900, not bad for November as the peak usually comes around mid-winter, so there is time for it to rise yet. The most numerous species were coot 976, wigeon 936, gadwall 521, tufted duck 291 and shoveler 261. Different lakes provide conditions for different species and we also find that factors like weed growth vary greatly from year to year and in different lakes. This year weed growth in Ibsley Water is quite poor, but it has been good in Rockford Lake and Blashford Lake and it is these lakes are attracting the large numbers of coot, gadwall and wigeon as a result. Ibsley Water seems especially attractive to pochard just now with 72 there today, whereas Mockbeggar Lake is shoveler central, with over 200 feeding on there and probably more, as it is a difficult to see through the trees from the path to Lapwing hide.

Although I missed them it seems probable that both great white egret were seen today, I may have seen both actually as I saw white birds though trees where they should have been! The bittern was also seen briefly from Ivy North hide and on one of the lakes north of the reserve I saw the ferruginous duck. This bird has been returning for some years and favours Kingfisher Lake on the outskirts of Ringwood, but this lake cannot be viewed as it once could. So far this winter though it has made one trip to Ivy Lake and today it was visible from the public footpath north of Mockbeggar Lane on the larger of the two lakes there. Hopefully it will oblige and spend more time in places where it can be seen, it is certainly worth checking the diving ducks on any of the lakes, just in case. I understand that the ring-billed gull put in an appearance on Ibsley Water in the afternoon, I suspect we will see it until the spring now.

I heard earlier this week that a car was broken into in one of the car parks last week, thankfully a rare thing at Blashford, this is only the second time it has happened, but it would be wise to take care not to leave valuables on show, or ideally in your car at all.

 

Walter Returns!!

I am delighted to say that I was wrong to suggest that we might have seen the last of our returning great white egret “Walter White” as today he appeared, way beyond his usual return time but here none the less. It was good to see him back at about 13 and a half years old he is a grand old bird now.

great-white-egert-walter-is-back

A rather distant Walter but with his distinctive set of rings, so we know it really is him (you can’t see the rings in this shot though).

It was actually quite a good day to be looking at birds on the reserve today. When I arrived Ibsley Water was alive with house martin, at least 1500 by my estimate and lots perching in the bushes around the main car park too.

house-martins

House martins around the bushes in the main car park.

During the afternoon there were 3 garganey on Ibsley Water, they spent a good bit of their time well out in the centre picking insects off the surface, it seems that they were first seen on Friday, although not noted yesterday. Other ducks were few in number but included a pochard, shoveler, wigeon and teal. There were also still 2 ringed plover and 2 dunlin as well as single common sandpiper and green sandpiper. It was also a good day for birds flying over with red kite, peregrine, raven and marsh harrier being seen. We also saw the first common gull of the season as well, despite their name not usually a common bird at Blashford. Perhaps even more surprisingly, the most unusual record of the day was probably a female house sparrow in the bushes beside the Main Car Park.

In the morning there was a volunteer working party, we were working on the grassy bank near Ivy North hide, mending the fence and digging out Turkey oak saplings. This is an interesting area and gets very warm as the bank faces south and is angled at about 30 degrees, as the sun warmed up we counted at least 5 small copper butterflies.

Seeing the Light

I frequently include moths in this blog and this is because we regularly run a moth trap at Blashford Lakes, but it is also an important part of the species recording program on the reserve. Over 2500 species of moths have been recorded in Britain and they occupy all terrestrial habitats and even a few aquatic ones. Many species occupy very specific habitats and they can be indicators of habitat health and help to identify key habitat elements for management. Moths are also attractive and, although common, rather rarely seen by most people, so we find them very useful for the education team as well.

The recent very warm nights have resulted in some much better catches and opening the trap on Thursday morning we found a good range of species including one rare New Forest speciality, the light crimson underwing.

light crimson underwing

light crimson underwing

It does have crimson hind-wings but at rest you cannot see them. It lives in old oak woods and over the years we have caught a few at Blashford, enough to suggest they breed on the reserve and this highlights the value of our old woodland along the Dockens Water.

One strange fact about moth trapping is that nobody really knows why moths are attracted to lights. There are theories of course, but none entirely stand up. We also know that different types of light attract more moths than others and even that some species don’t really come to light at all. Our light trap is one that produces a lot of light in the ultra-violet range, this is the part of the spectrum that attracts the greatest range of moths so most light trap use this type of bulb.

In contrast to moths we have very few species of butterflies in Britain, but they are generally much more familiar. Overall this summer has been a poor one for butterflies and moths, with most species being seen in relatively low numbers. I did come across one of Blashford’s scarcer species yesterday when I saw a brown argus nectaring on a small patch of heather.

brown argus

brown argus

Very few birds to report unfortunately, Wednesday’s first pintail of the autumn had moved on by Thursday. Other wildfowl of note were 14 shoveler and 7 pochard, but waders and other migrants are still scarce.

 

Mothless, well Almost

Yesterday I ran a “Moth event” at Blashford, unfortunately I forgot to tell the moths and there were probably more human participants than moths! Usually late August is a good time for catching large numbers of moths, but big catches require warm, calm nights following warm settled days. What we had was a windy, mostly clear night following a rather stormy day.

Luckily the day got more settled as it went on, at least until late afternoon anyway. This brought out good numbers of insects, including as many dragonflies as I have seen this year. Around the reserve I saw several brown hawker, southern and migrant hawkers, an egg-laying emperor dragonfly and a fair few common darter. Damselflies included common blue, azure, red-eyed, small red-eyed and blue-tailed.

Butterflies were rather fewer, most that I saw were whites, with all three common species near the Centre. Out on the reserve a few meadow brown and gatekeeper are still flying and speckled wood are increasing again. Near the Lapwing hide I saw both red admiral and painted lady, perhaps indicating some continued arrival of passage insects.

The sunshine in the middle of the day brought out reptiles as well and I saw two grass snake and an adder. The adder was very fat and I suspect a female which will shortly be giving birth, since adders have live young rather than laying eggs as grass snakes do.

adder

adder

I have heard reports of wasp spider being seen around the reserve recently and today I finally saw one.

wasp spider

wasp spider

This is a female, the males are much, much smaller and wander about seeking the females.

I had hoped for a few different birds, following the rough weather, perhaps a few terns, but there was little change form the past week. A few extra waders were the best that could be found, 2 dunlin, 2 oystercatcher, 2 common sandpiper, 1 redshank and the pick of the day, 3 greenshank, although they only flew through. There are starting to be a few more ducks around, I saw 8 shoveler and 3 teal, but there are still no wigeon on the reserve, although they should not be far away. Away for the water looking up there were 2 raven, and single hobby and peregrine. Whilst low over the water before the day warmed there were 1000+ sand martin and c200 house martin.

Perhaps the sighting of the day for many visitors though was the female roe deer that spent part of the morning in front of the Woodland hide.

roe deer at Woodland hide 3

roe deer doe at the Woodland hide