Monday, 7 June 2010

Monday 7th.June 2010

With two days volunteering in front of me , and with a not very good forecast for the afternoon , I headed off to the Downs in the search of some new species for the year .
When I arrived at the first site , the sun was once again very watery , and everything was still very wet from the overnight rain . As I entered at the bottom of the slope , nearly every butterfly that I saw was a female Common Blue , not a male in sight . Some Dingy Skippers were also recorded , and some of them were now living up to their name , Dingy . I was just photographing a Common Spotted Orchid , when a small flash of silver caught my eye , and fortunately , I managed to follow it's flight to where it came to rest . My suspicions were confirmed , a very fresh emerged male Small Blue , the smallest butterfly in Britain . The underwing is very similar to the Holly Blue , but the colour and the size identify this superb little insect . I recorded the species on the site last year , and was glad to see that they had made it through the hard winter . Just a singleton here , but I recorded two other singletons on other areas of the slope ,and as I said , they have obviously only just emerged , so I look forward to finding more on future visits . A second Orchid species then caught my eye , one of just a pair of Man Orchids , growing where the ground vegetation was less dense . As I walked through that vegetation , I put up several Burnet Companion , Silver Y and Mother Shipton , all day flying moths , and several of these , which I believe to be Yellow Shell , if it is not , I'm sure that it will be corrected . The first of six Brown Argus recorded , all males was the next species found , this one must have been on the Fosters last night . In the shorter sward , a movement revealed a Green Hairstreak , still in very reasonable condition , sorry Warren .
Leaving the first site , to return later , I headed for the second site , a short distance away . Here , refugia have been laid , and I started turning them over . The odd Slow Worm , a male Adder in the grass close by to the refugia , then the jackpot . I turned over the tin , camera in hand , to find 1 female Adder , 2 male Adders and two Slow Worms , all underneath together . I had the 100 mm. lens on , and holding the tin in one hand , camera in the other , I couldn't get far enough away to get all the subjects in the viewfinder . Consequently , a photo of three Adders , none of them with a head and no sign of the Slow Worms , but it was the best I could do at the time . The light/dark brown one is the female , the black/dirty white one , bottom left , a male in breeding colours , and the black/pinky brown one in between , I would say was a non breeding male . I can assure that they all did have heads , and I got a shot of each one individually , which I have sent to the man who can recognise each one by the head patterns . Another tin revealed a couple of Common Lizards , both good sized adults , and each very different in colour , this species being very variable . Butterflies were much fewer on this site , but the slope was much more in the breeze , but 17 Common Blues and another Green Hairstreak , sorry again Warren , I won't post a shot of this one , were recorded . Heading back to continue with the first site , Speckled Wood was recorded . I had recorded good numbers of Small Heath , 15 in total , and on this section of the slope , I found at least 5 specimens that I am sure were females , from the size , and from their 'jizz' . A disturbed male heads off at speed and disappears into the grass , whereas these specimens , fluttered a few metres and settled again , and newly emerged too , by the look of them . The far end of the slope provided the third and fourth species of Orchids , a few Twayblades , and lots of Fragrant Orchids , many still in bud , but many more like those above , in full flower . The refugia did not only produce reptiles , a few insects were also found , like this Lesser Stag Beetle-Dorcus parallelopipedus . In all , 11 species of butterfly were recorded , the most numerous by far was the Common Blue , with 230 specimens on this , the first site . One of those eleven species provided the last find of the visit , when I recorded 3 pristine , freshly emerged Large Skippers , all in a very small area .
And finally , one for the detectives . I've found this beetle a few times recently , and have searched each time for it's identity , but have been unsuccessful . Any ideas ?
Since posting , I have done more searching , and found out that it is a Red-tipped Flower Beetle- Malachius bipustulatus . Should have known that with it sitting on a flower !

Sunday, 6 June 2010

Sunday 6th.June 2010

If at first you don't succeed -
Woke up early , and decided again to try for Odonata emergence , but this time at the Farm lake , where there had been so many newly emerged specimens yesterday . Walking around the lake , it was still cool from the overnight rain , and what sunshine there was , was very watery , but as things happened , that was to my advantage . Just the odd damselfly was seen at first , so I headed to the most productive corner from yesterday . Searching through the bankside and emergant vegetation , I found many exuvia of the Black Tailed Skimmer , all empty , then found one with the adult halfway through emerging , just too late . But then I spotted another exuvia further out over the water , and through my binoculars I couldn't see any white threads on the back , which appear as the adult emerges , my luck was in . I set up the tripod as close as I could get , and whilst doing so , could see movement inside the thorax of the exuvia , to be correct , the nymph , as it still is at this stage of the metamorphosis . After a while , the head and thorax arched away from the vegetation , and the skin on top of the thorax split open , as the adult began to emerge .Then , like a scene out of Alien , the adult showed itself , pushing out it's head and thorax . This was followed by the abdomen . At this stage , the adult rested from it's exertions for about 20/30 minutes , looking as if it had all been to much , and expired . Then , seemingly refreshed , and with one very quick movement , hauled itself up onto the back of it's now almost empty exuvia . It then got the rest if it's abdomen out , and settled , riding piggyback on it's exuvia . Fluids were then pumped , mainly into the wings , which enlarged quite quickly , and some into the abdomen . It was now two and a half hours since I set up the tripod , and , getting hungry , I went home for breakfast , as I knew from watching parts of the emergence in the past , this part takes a fair time . Returning to the lake , suitably refreshed , all was as it was , except either the breeze which had got up or the insect itself had moved to the back of the stem . The other specimen had already opened it's wings , so I knew it wouldn't be long . Having walked around the lake again , three teneral Black Tailed Skimmers lifted off from the area as I approached , but the one I had been photographing was still there , waiting for me to take the final shot .In total I took over 50 shots of the emergence , too many to post , but I hope the ones I did post , give an insight into this , one of the miracles of nature . The four hours that I was on site , seemed like half an hour , and the whole thing was accompanied by Swallows and two House Martins skimming the lake surface , and Skylark and Yellowhammer singing , along with all the expected species .

On one of the laps of the lake , I stopped to check on the Orange Tip eggs that were layed on the Garlic Mustard growing on the fallen tree . Well , no sign of the eggs , but on each of the four flower heads , was a tiny caterpillar . That's egg and caterpillar , now I hope to find the chrysalis on the same plant when they pupate , which should be in about a month's time .
The sick looking young Coot that I posted a couple of visits ago has not been seen since , but the Coots have already got a second brood on the water . I'm sure that the Little Grebes have young now , but they have not been brought out from the safety of the reedbed yet . The Moorhens that I posted on the floating platform a while back seem to have only one chick left , no doubt down to the Grey Herons , one tried to come in yesterday whilst I was there , but thought better of it . Back on the Odonata front , as soon as it got warm enough , about 10 o'clock , the males started to appear , and the territorial disputes ensued . The Downy Emeralds were the first , closely followed by the Emperors , Four Spotted Chasers and the Black Tailed Skimmers . The latter were soon seen mating in flight , and the females almost immediately started ovipositing , dipping their abdomens and releasing an egg each time . In another corner , Four Spotted Chasers were doing their thing on the wing too . There was not much in the way of sunshine before I left , but a few butterflies were recorded , Large and Green-veined White , and Common Blue , but they were outnumbered by the number of immigrant Silver Ys .

Saturday, 5 June 2010

Saturday 5th.June 2010

As I missed the emergence of the Emperor Dragonfly yesterday , and as the temperature had been so high overnight , I got up early and headed back to the pond at Spring Park . The sun was just getting to the water when I arrived , and everything looked perfect . An hour and a half later , I headed back , disappointed , home for breakfast , without seeing a single nymph emerge . There was a third Emperor exuvia on the emergent vegetation , but that one probably emerged yesterday evening .
Next was the Down House bird survey , a couple of days late , but I wanted to avoid a weekday because of major roadworks in the village . By the time I arrived , the sun had warmed things up and even a teeshirt seemed too much to have on . 22 species were recorded , about average , with the best being a male Sparrowhawk warming himself up in the garden , a Great Spotted Woodpecker nest in the Sandwalk woodland , where once again I put up a Roe Deer , and a singing Yellowhammer almost at the end . Halfway through , I detoured onto West Kent Golf Course to see if the Kidney Vetch , that the small colony of Small Blues depend on , was in flower yet , which it was , just , but very few plants were found . On the Golf Course , Sainfoin-Onobrychis vicilifolia , a member of the Pea family , had also started to flower . Back in the open meadows of Down House , Yellow Rattle-Rhinanthus minor , a semi-parasitic member of the Figwort family was doing likewise . It gets it's name from the fact that the seeds when ripe , rattle within their pods , just like a baby's rattle . A few butterflies , Large White (5) , Small Copper (4) , Common Blue (8) and Green-veined White (2) were also recorded . Lots of the day flying moth , Burnet Companion and a single Cinnabar moth , were also seen .
On the way back home , I stopped off at the Farm Lake , my first visit for a while . The recent high temperatures and the fact that it looked as if no water had been pumped in from the artesian well , which would have cooled things down , meant that the whole place was alive with dragon/damselflies . Most obvious were the large numbers of newly emerged Black Tailed Skimmers , identified by the still wet , soft wings . It appeared that every step around the bank , put up more , making their maiden flights into the safety of the surrounding trees . It is impossible to sex the insects at this stage , as like the Broad Bodied Chasers , they all emerge the same golden colour . Every bay , lily pad and stand of reed had aerial battles going on for ownership , and many involved probably the easiest dragonfly to recognise , the Four Spotted Chaser , the only dragonfly to a four spots halfway along all four wings . A small butterfly caught my attention next , and when I managed to get a look at it , it turned out to be a very fresh , small Comma . Going by the book , not due out till the end of the month , and this one , one of the form 'hutchinsoni' , with golden brown underside , the later specimens will have much darker undersides . Back at the water , some of the earlier emerged Black Tailed Skimmers , were found already colouring up , and the males like this one staking their claims along with the rest . The males can be confused with male BBChasers from their colouring , but they do not have the broad bodies , nor the brown markings at the base of the wings of the BBCs . Although I didn't see any at Spring Park , there was no shortage of Emperor Dragonflies here . They too were joining in the aerial battles , driving off any intruders , and as usual , hardly ever stopping . This lake always has good numbers of Black Tailed Skimmers , but the numbers of Broad Bodied Chasers are always well behind , but this female , with her mate guarding her from above , was doing her best to redress the balance . I took about 20 shots of her dipping the end of her abdomen into the water and releasing an egg each time , in the hope that the timing on the odd one might be right , and this was that one . A butterfly amongst the Ragged Robin , which I thought was a 'white' from a distance , when I got up to it , turned out to be a female Brimstone .
I took a few shots , and when I looked them back , found that I had managed to get one of the rarely seen topwing if this butterfly , as she moved to her next nectar source . Other butterfly species recorded included Common Blue (5) , Large White (2) , Green-veined White (2) and my first Meadow Brown of the year , but he didn't hang around for a photo .
As well as the dragonflies , damselflies were also lifting off all around the lake . Large Red , Common Blue , Azure and Blue Tailed were all recorded in good numbers , along with the first sighting of the year for me , of Red Eyed Damselfly . I had been looking during the visit for one of the Emerald Dragonflies , which I have recorded over the last few years on this site . I thought that I got a view of one , but it was gone before I could be sure . I stuck around , and a while later , it reappeared . It then took another half hour to get a shot of it that wasn't blurred , as this species is even more active than the Emperor , if that were possible and only about half the size . This species is the Downy Emerald , and although not rare , I only record in ones and twos , but I'm reasonably sure that they are breeding on this site . As I walked back to the car , the unmistakable glide of a Demoiselle over the reeds , and when I got the binoculars on it , a male Beautiful Demoiselle , could it be the one Carol helped out of the carport the other day ? Now I've got 2 to record . That brought the Odonata species list to 10 for the visit .

Friday, 4 June 2010

Friday 4th.June 2010

Could only manage a couple of hours out this morning , and spent them at Spring Park Pond . The car thermometer was already reading 16C , but on arrival at the pond , all was quiet . A look around revealed that many more Broad Bodied Chasers had emerged , their exuvia still attached to emergent vegetation . Before I could get half way round the pond , a large dragonfly , lifted from just above the water surface , and made it's first flight , vertically into the surrounding trees . When I got around to the area , the exuvia of an Emperor Dragonfly was found in the vegetation , and later , a second was found . Just the odd Large Red and Azure damselflies were recorded around the pond , so I headed off to the sheltered meadow , and the vegetation that surrounds it , a favourite place for feeding and resting Broad Bodied Chasers . On the way , I recorded a single Small Copper , looking very colourful in the weaker morning light . It could well have been a female from the way she was behaving . Walking through the woods to the sheltered meadow , I froze when I saw a bird , sitting at the foot of a tree , well camouflaged . My mind raced as to what it could be , and I carefully made my way to the left to get a better look . When I got 90 degrees to my left , this is what I found , a broken branch lying at the bottom of the trunk . Disappointed , I carried on to the meadow . Sure enough , on the brambles alongside the meadow , I found the Broad Bodied Chasers , the females in their golden colours , and the males in their powder blue colours , 13 in total , split almost exactly in half as regards sexes . As they seemed quite happy where they were , I headed back to the pond to see what else was about .On one of the emerging leaves , was a Wasp Beetle-Clytus arietis , looking like everything it says on the box . Also around , were large numbers of Soldier Beetles-Rhagonycha fulva , and by this time , the Large Red Damselflies were getting things together , this pair in the wheel or ring position . Just the odd sighting of a female Smooth newt , and a couple of small fish , probably the offspring of some Goldfish that some moron dumped into the pond , the parents of which I sometimes catch sight of . The tadpoles are making a good job of the blanket weed , and there were large numbers of Pond Skaters , and a few Water Boatmen-Corixa punctata , who spend their lives in an extraordinary upside down world . I never did see the Emperor Dragonfly again , but , just before leaving the pond , the first male Broad Bodied Chasers arrived to take up their positions to intercept any females arriving at the water , this one taking his place on the flower of one of the Yellow Flag Irises , that are coming into flower .
Carol had a surprise when I got home , describing a Demioselle that had flown into the carport and couldn't get out , without her help . From her description , a male Beautiful Demoiselle . I have never recorded the species locally , but have recorded a few male Banded Demoiselles in the past .

Thursday, 3 June 2010

Thursday 3rd.June 2010

After two days working on the new shed , I was glad to get out , and had arranged with a hedgelaying colleague , back in March , to take him to see some Orchids . Carol was due a visit to her friend in Ashford , so I dropped her off there , then met Tony in the wilds of deepest Kent .
Our first target was Monkey Orchid , but , on arrival at the site , things did not look very good , with no sign of the species around the quarry area . In fact , it was birds that caught the attention , with a pair of Mistle Thrushes feeding on the bank , whilst in the scrubby areas , Yellowhammers sang from the tops of Hawthorn , Blackcaps , Chiffchaffs and several Common Whitethroats supplied the backing . Even a short burst of a Nightingale was heard . Lots of Twayblades , and the odd , past it's sell by date , Early Purple Orchid was found , before the first few , many of them browsed by rabbits , Monkey Orchid was found . This is a rare species , and is only found on this site and a handful of others in Oxfordshire . The only other Orchid found on the site was a single Fragrant , the flowers of which were still in bud . Good numbers of Common Blue butterflies were recorded , including a mating pair , a single each of Orange Tip and Brown Argus , neither stopping for a shot . As we were leaving , another enthusiast was arriving to photographer the Monkey Orchids that he had found in bud about two weeks ago . Not one of the specimens that he had seen then were still standing , all nibbled of by the obvious large Rabbit population on the site , he was not a happy man .
With other species to find , we headed to another site , this time mainly covered by woodland . Having parked the car and walking to the site , I couldn't resist photographing this horse , looking as if it was in a snowy field , but the 'snow' was in fact Oxeye Daisies . Almost straight away , we added Lady Orchid to the list , but the numbers were much fewer than on my last visit . Much walking followed , but Fly and then Greater Butterfly Orchids , pictured , were added . It turned out to be the only specimen of this species found on site . A couple of Helleborines , White and Broad-leaved were added , the second only in leaf , they will flower in early July . On a sunny bank with Horeshoe Vetch in good number , we found a newly emerged Adonis Blue male , and on the edge of the woodland , what I thought from a distance to be a female Broad Bodied Chaser , turned out to be a Hornet , probably a queen from the size of it . A Turtle Dove was hear 'purring' on the farmland edge , but it was not seen . The last Orchid species found today , was just before we left the site , a Common Spotted , just starting to flower . Other butterflies recorded included 3 Brimstone males , 2 Large Whites , and a very worn Comma , that must be one of the last surviving overwintering adults .
Leaving Tony to make his way home , happy with his list of 8 new orchids , 10 in all , all photographed , I headed to pick Carol up . House Martins always nest in the friend's road , but none have returned this year . That gave the local House Sparrows a solid platform to make their nest on .