Sunday 22 November 2020

Radford's Flame Shoulder

 


If I look at the Sussex records or the Flying Tonight App, there are still a lot of moths around, that would be new for me and that I could hope to find in my trap. The so called November, December, and Winter moths should be about along with late year species like Mottled Umber, the Sprawler, Yellow Line Quaker, Spruce Carpet and Satellite. I put the trap out whenever I can but I am just not getting any of these species. My usual catch is a couple of Silver Ys and half a dozen Light Brown Apple Moths.

Then last night, some luck. Not the moths I was looking for but a Flame Shoulder sitting in the bottom of the trap along with the usual catch. I knew it was a bit late in the year for this species so that opened up the intriguing possibility of a Radford's Flame Shoulder.

The field guides say this is a rare migrant from the continent first recorded in this country in 1983 and with only 29 records prior to 2015. I think many more have been seen since then and I am aware of quite a few reports along the south coast this year. Still it was good to find a possible in the trap.

But was it a Radford's? The key ID features for the Radfords Flame Shoulder are given below the pictures. It seemed to tick some of the boxes but with my limited identification skills it was a difficult call.


Radford's Flame Shoulder - Ochropleura leucogaster



Radford's Flame Shoulder - Ochropleura leucogaster


Key criteria for the Radfords:-

Long winged compared to the Flame Shoulder  -  According to the Field Guide, on average it is only one millimeter longer. That's not something I can call looking at a single specimen although it did look a bit slimmer than my only picture of a FS.

Black streak extends beyond the kidney mark - Well yes, but not by much.

Kidney and oval marks smaller than a FS - Possible but not easy to call.

Dull brown ground cover - duller than what? it still seemed to be showing some red.

Sharp contrast between purple thorax and white patagia - I had let it go before I read this.

Clear white hindwing - I didn't see this and I still don't know how to see the hindwing on a moth without damaging the moth, which I am not prepared to do. It's going to make some future identifications difficult.

Flame along the costal edge extending well beyond the kidney mark - Yes 😀 but its only one good tick out of a possible seven.

In the end the strongest indicator was the date, with the end of November being well past the usual flight period for the Flame Shoulder.

On balance, I thought it probably was a Radford's but it is always with some trepidation that you load your identification onto the national recording system, in this case iRecord, and wait to see if some expert comes back to point out what an idiot you are. In this case I was spared that ignominy and I had another good moth to add to my garden list.

It's strange, given my previous doubts, how when I look at the pictures now, it seems so obvious that it is a RFS.



My only other new moth of late, a tiny spot on the kitchen window as it was getting dark a couple of days ago. I nearly ignored it but it turned out to be a Narrow-winged Grey. Common enough but a new one for me and they all count on the garden list.



Narrow-winged Grey - Eudonia angustea



Narrow-winged Grey - Eudonia angustea


It was good to get a bit of success but there is still a big list of winter moths that I need to look for. Roll on the next good mothing night.





Tuesday 10 November 2020

Bloxworth Snout

 


It's November and it's getting colder but the books tell me that there will still be some moths flying as long as the temperature stays above zero. I just haven't managed to work out which nights they will be flying on.

On Sunday, I had what I thought was quite a successful night for early November,  with twenty plus moths in the trap. Admittedly 7 of those where the Light Brown Apple Moths and 8 where Silver Ys but I also has three new moths in Black Rustic, Feathered Thorn and Scarce Umber.


Black Rustic - Aporophyla nigra  (It's a bit worn but thy all count)



Feathered Thorn - Colotois pennaria



Scarce Umber - Agriopis aurantiaria


Flushed with enthusiasm I put the trap out again last night. Having checked up on the moths still likely to be flying this late in the year, I was looking forward to finding a few more new species. Sadly it was not to be. All I found was a single Light Brown Apple Moth.

I really don't understand what makes a good mothing night. Comparing the nights of Sunday the 8th November and Tuesday the 10th, I have:-


                                    Sunday 8th             Tuesday 10th

Temp                             8-13°C                    10-13°C

Wind - gusting to          12-19Kmh                4-21Kmh

Humidity                       91%                         88%

Cloud cover                  18%                          19%

Pressure                       1019mb                    1025mb

Visibility                      Mist to Good              Good      

Moon                           51%                          29%


The only significant difference seems to be in the level of moon illumination. However, various sources suggest that, either less moths fly under a full moon illumination or UV lights are less effective during a full moon illumination. This is the reverse of what I am seeing.

The problem with this analysis is that I am only looking at my trap. It takes no account of the surrounding houses and street lights. Worst case, I could find that someone close by was running a Mercury Vapour lamp on Tuesday and had a catch of a few hundred. Still, its worth keeping a more detailed log of the weather on mothing nights and doing a bit more research.


The other moth of interest on Sunday night was my third Bloxworth Snout for the garden and my second of the weekend.



Bloxworth Snout - Hypena obsitalis
15th October 2020



Bloxworth Snout - Hypena obsitalis
8th November 2020



Bloxworth Snout - Hypena obsitalis
9th November 2020



Ten years ago it was a real rarity in Sussex. There are more sightings these days but unless 2020 has been an exceptional year, three inside three weeks suggests real beginners luck.

The Silver Ys were nice to see but would have been even nicer if one of them had been a different member of the Plusiinae subfamily.



Silver y - Autographa gamma


Other moths included a Double-striped Pug, and Olive-Tree Pearl.



Double-striped Pug - Gymnoscelis rufifasciata



I have run the trap a couple of times since my last moth blog back in September. New moths for the garden have included:-



Red-line Quaker - Agrochola lota



Clancy's Rustic - Platyperigea kadeni



Barred Sallow - Xanthia aurago



Orange Sallow - Xanthia citrago



White-point - Mythimna albipuncta



and other interesting specimens



Angle Shades - Phlogophora meticulosa



Barred Marble - Celypha striana



Pale Mottled Willow - Paradrina clavpalpis  (on Avocado)



Cypress Carpet - Thera cupressata



Olive-tree Pearl - Palpita vitrealis



The moth numbers may not be great at this time of year but the excitement of opening the trap, to check the catch, is still there. As is the disappointment when it turns out to be a single Light Brown Apple Tree Moth!



Light Brown Apple Tree Moth - Epiphyas postvittana




Roll on the next good mothing night, whenever that may be.





Thursday 22 October 2020

Stejneger's Stonechat



In January 2017, Dave I visited  Dungeness twice and spent a good part of that time searching the area around the quarry for a suspected Siberian Stonechat, possibly a Stejneger's. We had checked the identification features but really had no idea if we would be able to identify the bird if we caught sight of it. 

We needn't have worried. We didn't manage to see it and although disappointed at the waste of time did have to smile when we subsequently found that DNA  analysis had shown it to be a European Stonechat. 

I had a sense of "deja vu" when another possible was reported at Medmerry. Researching the identification features again, left me with no more confidence than for the Dungeness bird, that I would be able to make the identification. Did I really want to spend time looking for one Stonechat, amongst a lot of other Stonechats, that I probably wouldn't recognise as being anything out of the ordinary anyway.

I left it a couple of days but in the end I had to go. It was on my patch and it would help heal the open wound left by the failure at Dungeness.

 




The directions to the thistle Field were easy to follow and there were already four or five people watching when I arrived. All very promising but the downside was that there were a lot of Stonechats in the field and it was a very bright morning. Not the sort for looking for subtle differences in feather hues let alone trying to get a photograph of them.

After a couple of false starts I did manage to pick up one bird that looked different. It looked more like a Whinchat with strong supercilium's but with a broad white throat. Further observation showed that overall the bird looked paler than those around it with less colour on the belly and with an unstreaked apricot rump.









Viewed from other angles the supercillium barely showed up and at times I thought I was getting two different birds mixed up. You had to follow it until the angle changed and the white reappeared.










To me it looked a good candidate and other more experienced birders had similar views. Clearly it stood out from the other European Stonechats around it but was the variation within the limits of the European species? More worrying, would I have just written it of as another Stonechat if I hadn't been told that it was there.


A DNA sample had been collected the day before and the only way the bird will be accepted is on the basis of this sample. 


Watch this space............ The news is not good, no DNA could be extracted from the sample so it doesn't count. Looked good at the time though.




Tuesday 13 October 2020

Lammergeier

 


I had just arrived home from photographing the Grey Phalarope at Widewater when a message popped up on Twitter to say that the Lammergeier had been seen near East Dean. I knew it was travelling south and I had joked about getting a garden tick, but I hadn't really expected to get a chance to see it. The obvious route for it was down through Kent and out across the channel.

There really wasn't any choice, I jumped back in the car and headed off towards East Dean which is about a 50 minute journey. I pulled over just after crossing the Exceat bridge to check the Twitter messages for updates and realised that it had moved and was flying above the Friston Forest. Quite frustrating really as I was sitting in Friston Forest car park and couldn't see anything through the trees.

I had to retreat to more open ground at the Exceat bridge to get a view out over the forest.




The Lammergeier was distant, only really visible with binoculars, but there was no mistaking it as glided over the forest accompanied by a flock of crows and at least one Buzzard.

I tried driving along the Litlington Road but couldn't get any views of it so ended up at High and Over along with a lot of other birders and watched it from there. It was distant all the time I was observing but it is amazing what detail the camera can pick up given that it was barely visible without the binoculars.






I watched until it went to roost in a tree just north east of the Long Man Brewery on the Litlington road. It had made one close pass at High and Over before I arrived there, so I am sure there will be some good pictures about. There is also the chance to go and see it leave the roost in the morning but I get the feeling that it might be a bit busy along there. Perhaps if it is still around in a couple of days I might give it another go.


The main event of the day was meant to be photographing the Grey Phalarope but that ended up being a bit overshadowed by the Lammergeier. Still, an excellent bird for the local patch and well worth recording.






As with most Phalaropes it showed little fear of people, often approaching within a few feet of the observers.






It makes it easy to get good pictures but perhaps a little less rewarding in that the skill element necessary to get that picture is non existent.






I also find that I am starting to gather a lot of  images of these "rare" but easy to photograph birds. The Red-backed Shrike is another example.






Great bird though and who can turn down the opportunity of adding just a few more good pictures to the collection.





Saturday 10 October 2020

Lapland Bunting

 


Actually the blog covers the Lapland Bunting and a juvenile Purple Heron. No UK life ticks all year then two come along in just two days.

Better still I had really good views of the Bunting. This is a bird where I was not confident in making the identification. I knew that I would need either plenty of time to check the features or some good pictures to enable me to check later. Spook it after a quick view and there would always be an element of doubt.

The location was Beachy Head where the bird had been reported a number of times over the previous three or four days. I arrived early and headed towards the trig point which was one of its favoured spots. There were a couple of people already there who pointed me in the right direction but I just couldn't locate it. It was only when they made a second effort that I realised the bird was in long grass about twenty feet away instead of the twenty metre area I had been scanning.





I spent a frustrating half hour with just an occasional view of a head popping out of the long grass but eventually it showed well.....









and finally came out onto some open ground where I could get some better pictures. 

I had always thought this was quite a timid bird that was easily flushed but this one did not seem at all concerned at our presence. It was happily feeding for the whole time I watched and did not even move when some walkers passed within about ten feet of it.










Lapland Bunting has been on my hit list for a while now. It is one that I feel I should have seen and I have come close on a couple of occasions but have always just managed to miss it. It was nice to be able to cross it off my list and even better to get such views.



If I had good views of the Lapland Bunting then the juvenile Purple Heron that I saw the previous day was the complete opposite. Rather than stand around all day waiting for it to come out of the reeds I decided to go along early evening to watch it go to roost. Less time wasted and a better chance of seeing the bird but the downside would be the reduced chance of a picture in the lower light levels.

I just hadn't realised quite how dark it would be when the bird went to roost. I arrived at Burton Mill Pond at about five thirty with the expectation that it would fly sometime between then and six thirty. It was actually six thirty five when it appeared and it was just visible through the gloom flying above the reeds. 

Fortunately I had spent the waiting time, gradually turning up the ISO on the camera from my usual 400 setting until I got to 16000. The pictures are not good but at least you can see that it is a Purple Heron. At the time it was too dark to be sure but the camera view is a lot brighter than the image I was seeing.






I am amazed the camera could even focus at these light levels let alone catch the bird in flight. It's not all good though, as enlarging the subjects gives a very grainy image.



at roost



I have seen Purple Herons before in Spain and in South Africa. Got a slightly better picture as well but it's nice to get the UK tick.



Hippo Hollow South Africa 2016



So a great couple of days and two UK life ticks. The experience wasn't even spoilt by not being down at Pagham Harbour when Nighthawk came through. You have to leave some birds for another day.






Monday 28 September 2020

Blair's Mocha

 

The moth trap is still proving to be an interesting distraction in these times of covid-19. With a small urban garden, close to the sea and a couple of miles from the nearest countryside, I hadn't really expected to see too much in the way of numbers and variety in the trap. I have to say I have been pleasantly surprised. True, the numbers are not huge, probably a maximum of forty to fifty a night, but as a beginner the challenge of identification has been enough to keep me occupied for a good few hours each time the trap is run.

The following is just a selection of some of the moths caught. There is nothing special about them, I just feel the need to keep an occasional record on the blog. Google permitting I will be able to return to and read them again in future years. 


My first moth is a Blair's Mocha. Previously an occasional migrant species but now resident on the south coast. Just a fascinating shape particularly with the appearance of a streamlined head. One of the benefits of global warming and of living on the south coast is that we get to see these species before the rest of the country.


Blair's Mocha - Cyclophora albipunctata

The picture was taken in the lid of the sample pot as I have found these Geometridae difficult to photograph. Sure enough, when I tried to transfer it to a better background it took the opportunity to escape. I may not be an expert on handling moths but one thing I learnt from birding is get your record shot first then worry about getting a good picture.


The next moth, a Blood Vein, required me to use a different set of skills, those of butterflying and in particular the pursuit of the Pearl-bordered species. I disturbed this one whilst walking along the North Wall at Pagham and watched as it disappeared into the distance. There then followed a half hour search and pursuit, during which it regularly disappeared form sight and often settled in spots where it couldn't be photographed, but eventually I got the picture.


Blood-vein - Timandra comae



One from the trap, a Campion. Nice looking moth and easy to identify as it is reasonably fresh and still shows the purplish marbling on the wings. The picture below that is of the very similar looking Lychnis. When the Campion is older and faded they are harder to tell apart. You are then comparing the width of the wing, the kidney and eye shapes on the Campion being more distorted, and the shape of the outer white cross line on the forewing. More subjective and not easy unless you have the two side by side.



Campion - Hadena rivularis



Lychnis - Hadena bicruris


And now for something completely different, a Chinese Character. This species holds its wings erect when at rest and resembles bird droppings. The camouflage seems to work with birds reported to often ignore it when feeding. At only 10-13mm long and looking like something you don't want to put your hand on this moth is easily overlooked.



Chinese Character - Cilix glaucata


 There are a number of Noctuid moths called ‘Wainscots’. The name refers to their colour and pattern rather than suggesting closer family links. They are generally off-white with veins giving the appearance of longitudinal whitish stripes all the way down the forewing. Below are two of these, the Common and the L-album.



Common Wainscot - Mythimna pallens



L-album Wainscot - Mythimna l-album


Most moths rest with their wings flat or curled up close to their bodies. There are, however, a few examples of moths that will rest with their wings held aloft like a butterfly. Below is a Cypress Carpet showing this behaviour, with the picture after that the same moth with its wings flat.



Cypress Carpet - Thera cupressata



Cypress Carpet - Thera cupressata


And below a Latticed Heath holding a similar position. This moth was in the kitchen for most of the day and seemed to hold the vertical wing position for all of that time.



Latticed Heath - Chiasmia clathrata clathrata


A Delicate, not rare but the first one I have seen and below that a Pale Mottled Willow. The latter being easy to identify from the white spots around the kidney mark.



Delicate - Mythimna vitelina



Pale Mottled Willow - Paradrina clavipalpis


Another Geometridae, the Light Emerald. It is said to be common but I have only ever seen one of them, this on a leaf at the side of the trap. I nearly missed it but I have now got into the habit of searching all the vegetation close to the trap.



Light Emerald - Campaea margaritata



The Orange Swift is part of the Hepialidae family. These are primitive moths that have no working proboscis or mouth parts, so only live about a week. There are around 500 species worldwide with just five occurring in the British Isles.


Orange Swift - Hepialus sylvina


Underwings have been plentiful in the trap of late. They are mostly varieties of the Yellow underwings and strangely most are in very poor shape. Rather than show those, here are two in better condition, a Copper Underwing which unfortunately I could not get to open its wings and a Red Underwing which was more obliging but only when sitting on the Red Blinds. I think the identification as Copper Underwing rather than Svensson's Copper Underwing is correct but I can't be sure hence the Amphipyra agg designation.



Copper Underwing agg - Amphipyra agg 



Red Underwing - Catocala nupta


I haven't yet found a reliable method of getting the moths to display the underwing. Perhaps its pure luck......

and below a Setaceous Hebrew Character included because it was showing some of the underwing. It makes such a difference to the pictures.



Setaceous Hebrew Character - Xestia c-nigrum




I have included a picture of the Rush Veneer as a representative of the Micro Moths although at 12-15mm it is actually bigger than many of the Macros.



Rush Veneer - Nomophila noctuella



I include the next two pictures because the use of camouflage by moths is fascinating. I understand that thousands of years of natural selection will have developed wing colours and patterns that match their natural habitat. However, there seems to be more at play here. 

I placed the Treble-bar below on a stone wall where it stayed for about twenty seconds before relocating to an adjacent wooden panel. It then proceeded to move around in what appeared to be an attempt to line up its wing markings with the woodgrain. Unfortunately in my attempts to get a picture I flushed it so never got to see the final result.


Treble-bar - Aplocera plagiataplagiata


The Willow Beauty was another example. I placed it on a piece of plain wall and it quickly relocated to this textured area.The match is so good it looks as though the moths wings are transparent. Does this show a level of self-awareness, of the moth knowing what it looks like, or is it just coincidence. I am not sure but it is something I will be looking for in the future.



Willow Beauty - Peribatodes rhomboidaria




So much more to see and wonder at. Why didn't I start looking at moths years ago?