Reserve access update and a swan rescue!

Unfortunately in addition to the two path closures mentioned in Jim’s last blog, we have also had to close the stretch of path between the Welcome Hut and the Woodland Hide (you can walk along this path as far as the left hand turn towards Ivy North Hide). 

Both the Woodland Hide and Ivy South Hide are open, but they need to be accessed from the other direction, via the bridge and boardwalk.

We had hoped to get the offending tree branch, which has partially come away from one of the large oaks and is resting over the path against another tree opposite, removed today but unfortunately this did not happen. Hopefully the tree surgeons will be able to re-schedule their visit soon, as we know the circular ‘Wild Walk’ loop is a popular one.

On Saturday evening I had received a message from Jim warning me that visitors had reported a swan inside the water treatment works fence. Unable to do anything that night, it was left for me to investigate again on Sunday morning after I had opened the hides.

The swan had probably planned to land on Ivy Lake, and had either made a mistake and overshot the water, or being a young male it could have been put off landing by another male. On walking around the perimeter fence I did indeed find the bird. It was not overly impressed to see me, but didn’t appear too unscathed after a night inside the site.

Mute swan sitting comfortably on the lichen

On my way back to Centre I spotted a couple of Earthfan fungi on the edge of the lichen heath.

Earthfan fungus, Thelephora terrestris

I found the key to the works and called Mike at the wildlife rescue at Moyles Court to see if he was available to retrieve it. He came down straight away and we went inside, following the fence line round. The swan had moved from its original spot, and had been closer to the entrance the night before, so clearly it didn’t have a problem walking.

With me blocking the swan’s exit (not entirely sure what I would have done if it had run at me), Mike was able to catch the bird and hold it down, while I positioned a carry bag. He placed the swan on top of the bag, holding its wings tight, and I zipped it up so his wings were held in place. We then carried the swan back to his van and took it across the road to Ibsley Water.

Before releasing the swan on the larger lake, Mike checked him over to make sure he was fit and well and hadn’t damaged himself in any way when he landed.

With no signs of damage to his wings or feet, Mike was satisfied and we went out onto the shore to release the bird. Ibsley Water is a much larger water body than Ivy Lake and is able as a result to support a larger population of swans without them getting too close to each other.

Mike released him slowly, making sure he had a chance to take it all in and clock where the other swans were on the water. He was quite happy to get back onto the water, and was quite vocal in his appreciation! Thank you Mike!

After the excitement of a swan rescue, I was able to have a look inside the moth trap, which revealed a nice selection of autumnal moths:

Scarce umber

November moth

Feathered thorn

December moth

Today Bob, Chloe and NFNPA apprentice Ben have been improving the view of Ibsley Water from the viewing platform by removing some of the willows that have been merrily growing taller and taller. This will improve the views of the gulls and other birds roosting on the lake and also hopefully the starling murmurations.

I wasn’t able to take a before photo as I spent the morning uploading events to the website and Eventbrite, but I did join them in the afternoon so I could pinch some of the cut willow for wreath making. The rest was added to the dead hedges.

Willow ready to be turned into wreaths

Improved view of Ibsley Water from the viewing platform

Bob still has a few willows to cut, and with us selling 100 wreaths last year for a donation any nice straight whips will be put to good use!

Our self-led ‘Decorate a Willow Wreath’ activity will be available once again from Sunday 28th November and you can find out more on our website here.

In bird news, a Caspian gull has been seen on Ibsley Water both today and yesterday, with other recent sightings including marsh harrier, common and green sandpiper, a number of yellow-legged gull, water pipit and a number of black-tailed godwit. Elsewhere on the reserve firecrest have been showing nicely along with good numbers of siskin and a Siberian chiffchaff was caught on Thursday by bird ringer Kevin.

Finally, David Cuddon shared this photo of a Peregrine falcon wit us, showing nicely from (I think) Tern Hide – thank you very much David!

Peregrine by David Cuddon

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A different view

On Tuesday I accompanied Bob to the north eastern shore of Ibsley Water so he could fell some of the willows into the lake, creating perches over the water for birds like heron and egret to fish from. I did fell a few smaller trees, but admit I was mainly there as first aid cover and did make the most of the opportunity of being in a different spot, enjoying a wander along the edge of the bay where I’ve only been once before.

Bob felling trees into the bay north of Lapwing Hide

The view across Mockbeggar Lake towards Ibsley Common

Whilst we were up there, a goosander flew overhead and a couple of pied wagtails made themselves comfortable on the osprey perch:

Pied wagtail

On the walk back I noticed some blackening waxcaps on the edge of the lake near Lapwing Hide, which were beginning to change colour. A grassland fungi, blackening waxcaps turn black with age, hence the name, but prior to blackening they can be red, orange or yellow in colour.

Blackening waxcap, beginning to blacken

The view towards Tern Hide from in front of Lapwing Hide

There is plenty of fungi in accessible locations on the reserve, with candlesnuff fungus seemingly everywhere if you look closely enough at the woodland floor along the footpath edges:

Candlesnuff fungus on a moss covered log

I also found a couple of earthfans on the edge of the lichen heath. They can be found on dry sandy soil and have a rosette like fruiting body which is usually reddish brown to dark chocolate brown in colour.

Earthfan

There were also a number of russula growing in amongst the lichen. There are approximately 200 russula species in the UK and the generic name means red or reddish. Although many have red caps, many more are not red and those that are usually red can also occur in different colours. This species could be Russula rosea, the rosy brittlegill, but I’m not completely sure so will stick with the genus russula on this occasion!

Russula species in amongst the lichen

There was also a branch covered in jelly ear fungus along the ‘Wild Walk’ loop, close to the acorn sculpture:

Jelly ear fungus

Also known as wood ears or tree ears, the fruiting body is ear shaped and is usually found on dead or living elder.

With the colder, wetter weather we have begun to get a number of more unwelcome visitors in the centre, usually wood mice or yellow-necked mice. Although we enjoy catching small mammals as an education activity, they are less welcome additions to the centre loft where they have in the past chewed through the cables. So we trap them in the loft too, using the Longworth small mammal traps, and safely relocate any we do catch to the further reaches of the reserve. On Sunday morning there were two mice in the loft, so I took them up to Lapwing Hide and released them into the undergrowth. 

Mouse released from one of the mammal traps by Kate Syratt, who joined me for a socially distant wander to release them

There have been a good variety of moths in the light trap recently, with the highlights including mottled umber, streak, red-green carpet, green-brindled crescent, feathered thorn and December moth:

Mottled umber

Streak

Red-green carpet

Green brindled crescent by Kate Syratt

Feathered thorn

December moth

Although I haven’t seen any sign of the brambling recently, the feeder by the Welcome Hut is being regularly visited by at least one marsh tit. We had a pair around the centre regularly over the summer so it has been really nice to get great views of at least one feeding frequently.

Marsh tit

Starling numbers have been increasing and on Tuesday evening there were several thousand north of Ibsley Water. They are best viewed on a clearer evening from the viewing platform which is accessible on foot through the closed main car park and gives panoramic views of Ibsley Water.

Ibsley Water from the viewpoint

This is the perfect spot to watch the starlings put on a show as they twist, turn, swoop and swirl across the sky in mesmerising shape-shifting clouds. These fantastic murmurations occur just before dusk as numerous small groups from the same area flock together above a communal roosting site. The valley boasts a sizeable starling murmuration most years, with the reedbeds to the north of Ibsley Water often used, along with those on the other side of the a338 to the west and the smaller reedbed by Lapwing Hide in the east, so from this higher vantage point all possible roost sites can be seen. 

Although I don’t have any photos to share of the murmuration, taking a video instead the last time I watched them, it’s also a really nice spot to watch the sun set.

Sun setting to the west of Ibsley Water from the viewing platform

A little bit of everything…

Yesterday our Young Naturalists were back at Blashford for a varied session in search of birds and fungi and a practical task in our camp fire meadow. Kevin and Jack, BTO bird ringers, were ringing at Goosander Hide in the morning so we headed straight up there to try and catch them before they had finished. Whilst we were there, we were lucky enough to watch Jack ring a robin and a chiffchaff and talk us through the process.

Thank you Kevin and Jack for taking the time to chat to the group and explain what you were up to and looking for, giving a great overview of bird ringing.

Whilst in Goosander Hide, Young Naturalist Talia took some great photos of some of the birds on Ibsley Water:

Grey Heron with six Little Egrets by Talia Felstead

It was then time to rummage through the light trap which revealed a really nice variety of moths for us to identify, including this lovely Feathered Thorn:

The most abundant moth by far was the November moth sp. but we also had the following:

Close to the Education Centre we found this fantastic Shaggy Ink Cap, which sadly by this morning had become too top heavy and is now in two bits! Unfortunately this photo doesn’t do its size justice, it was super tall!

Shaggy Ink Cap – ‘Coprinus comatus’

After lunch it was time to do something practical and we spent the afternoon in our camp fire meadow, raking up the vegetation strimmed by volunteers Emily and Geoff in the morning. We also cut up some of our old den building poles to use as firewood, as these will be replaced with new poles cut over the Winter.

Cameron and James raking the cut grass

Cutting up the old den building poles for firewood

We finished our time in the meadow with more toffee apple cooking over the fire, with newcomers Gregory and Jodie having a go at fire lighting and old hands James, Cameron and Talia showing how it’s done.

More toffee apple cooking!

With time left at the end of the session, we checked our mammal traps in the loft which revealed two wood mice, who had ventured into the building where the nights are now cooler.

Two wood mice, being well photographed by the Young Naturalists

Finally, we went on a short walk to Ivy South Hide, spotting fungi on the way and a Red admiral butterfly making the most of the October sun’s warmth:

Our Young Naturalists group is funded by the Cameron Bespolka Trust.

December Moths

Yes, there really are moths that fly in December. You might think that all moths fly on warm summer nights, which most do, but there are moths flying at all times of the year.  One of them is actually called the “December moth” and as the name suggests it flies mainly in December. Perhaps because of this habit of flying on rather cool nights, it comes with quite a shaggy fur coat.

You can see that this male December moth has large feathered antennae, these are used to detect the female’s pheromones and so find her as quickly as possible. This style of antenna is shared with another of the moths of December, the appropriately named feathered thorn.

Like most other moths both sexes of the above species can fly. A number of other winter flying moths have females that are wingless or, more accurately, with such tiny wings that they cannot fly. This enables them to put as many resources as possible into egg production. There are several such species, one of which is the mottled umber, a very variable moth. Inevitably it is only ever the males that come to the moth light! The females wait on a tree trunk to be found by the males, who use the pheromone scent carried on the breeze to find them.

The tactic obviously works as one of other species that also has flightless females is the winter moth, which is mostly about between November and January and is very common and widespread, it is even found on Shetland. In fact it is so common, that it seems that blue tits actually time their breeding so that their chicks can be fed on the huge number of winter moth caterpillars to be found on many species of tree in May.

These winter-flying moths are interesting, why do they fly in the coldest months? They cannot feed on nectar as many other moths do, as there are no flowers, actually not as much of a problem as it might sound as quite a few summer flying species do not feed as adults. But flying in the cold is more of a problem, their flight muscles need to be above a certain temperature to allow flight, so they mostly fly on the warmer winter nights, recent nights have been kind to them in this regard. A clear advantage of winter flight is that there are many fewer bats about and bats eat a lot of moths!

I have mentioned one of the advantages of having flightless females, they can lay more eggs. However you would imagine that being flightless would be a real drawback when it comes to dispersal, males can fly off, but this is useless if the females cannot move. Males might find ideal new habitat but they cannot colonise it without females. It is hard to imagine a caterpillar or an adult female walking more than the distance from one tree to the next in each generation, so a few metres each year, at that rate they would have not have spread more than a few kilometres since the ice receded and the land bridge to Europe was cut off! (assuming of course that they got to the land bridge at all). So how have they become so nearly ubiquitous across the UK?. It turns out it is the caterpillars that fly, they use a technique like that of spiders, known as “ballooning”. The small caterpillars go to a high point and produce a long strand of silk and get carried off by the breeze, sometimes for long distances.