Wednesday, 6 June 2018

June 6th Strumpshaw Fen

Ragged Robins at the Meadow Trail
There was just one objective on my mind today and that is to find a swallowtail. I have yet to see one during the previous two Wednesdays due to rubbish weather conditions. Thankfully, the sun is out this morning and it is more than warm enough for swallowtails to take wing. So, before my shift, I went for a walk along the Meadow Trail to look for them. No such luck, though. However, I was more at awe with the wildflowers, especially the orchids. For the rest of the walk, I ended up searching for orchids instead. There was a rather good selection of them on offer this morning. I also followed a singing whitethroat that hopped from shrub to another along much of the River Trail and spooked a Chinese water deer as it rushed out from the reeds to cross the Sandy Wall path.






Common Twayblade

Bee Orchid


Southern Marsh Orchid

Common Spotted Orchid

Mallard with ducklings
Yellow Rattle
Swallowtail
When I returned to the Reception Hide, I was greeted by the sight of a crowd armed with cameras around the flower bed adjacent to the hide. This meant only one thing... SWALLOWTAILS!!! Finally! I didn't miss out on them after all. It was a real relief. Of course, as I live only a train ride away from Strumpshaw, I don't have very far to come to see them. For the many other people visiting today, the range of accents I've heard indicate that they've come from far and wide. Manchester, Kent, Wales, London, the list goes on and they're all here for the swallowtails. And in return, the swallowtails have given them a show for much of the morning from the flower bed and from the front of the Reception Hide. They've come all this way to see them in minutes on arriving.
Swallowtails are causing concern for many scientists more than ever in recent years. The swallowtails we have here at Strumpshaw are the British subspecies, which has a different lifestyle compared to the ones over on the European mainland. They tend to favour milk parsley to lay their eggs on, which is a rare plant found only in the Norfolk Broads. New research from the UEA (University of East Anglia) are warning us that climate change is making a big impact on these beautiful butterflies and their foodplant and both are at risk of being lost forever. In short, the swallowtails hold here is on a knife edge. It would be devastating to lose this great icon of Norfolk, which is a big part of this county's identity.
Scarce Chaser
Away from swallowtails, there was plenty of interest in Strumpshaw's dragonflies, too. Norfolk hawkers and scarce chasers are another of the reserve's invertebrate specialties and they were also showing reasonably well as if trying not to be overshadowed by the swallowtails. In fact, dragonflies were everywhere this morning, outnumbering the large, flashy butterfly that almost everyone seemed to be more interested in. From over the surface of every body of water to high above the treeline and even perched on the pathways. You couldn't miss them and there was a brilliant selection on offer. And if the insects weren't enough, there was also a kingfisher making a few visits to the reedy islands outside Reception Hide, which caught a fish at one point.
Four-spot Chaser
Black-tailed Skimmers mating
Female Black-tailed Skimmer
Red-eyed Damselfly
Azure Damselflies
Hornet
Snipefly
Kingfisher

Grey Heron

Monday, 4 June 2018

Caterpillar Diaries (Part 7)

Emerging out of it's old skin!
A day later and there's still caterpillars emerging out of their old skins. I was lucky enough this afternoon to witness it happen with one of them. It only took a couple of minutes before it freed itself completely, but it was a magical couple of minutes for me. By the end of its struggle, it emerged bright, green and beautiful. It was as if it was giving me a taste of what it will be like when the moment comes when these caterpillars will emerge out of their cocoons and become moths next year, hopefully.
Enjoying their new home!

After the caterpillar completed it's transformation, I then moved it to it's new home. Speaking of which, this new set up with the new box, bramble branches and the jar of water is proving a real headache to clean out. Though the caterpillars are loving climbing around the branches, I'm finding it a real pain (quite literally) to change these branches for fresh ones and to take out the jar to clear out the frass they've produced at the bottom of the box. The branches just keep catching the side of the box when placing them back in, knocking the caterpillars off. I've created a bridge with a smaller branch with leaves to allow them to climb back up, but I think I may still have to rethink things here.

Sunday, 3 June 2018

Caterpillar Diaries (Part 6)

Skin Change number 3!
It is all change today. Half of my caterpillars have began shedding their skins for a third time now. They have been looking rather orange and spotty lately and some of them have been clinging to the side of the box that they are in, doing very little. Many of the 25 caterpillars were still active, refusing to join their siblings with the change and were acting like small human children that insist in not going to bed or eat their greens. I expect they will join them eventually. So far, at least two have now crawled out of their old skin sowing off their new colour scheme. Though it does appear as if they have shrunk a little bit during the latest shed, they are starting to look green with yellow ping-pong-like balls or spots attached to their bodies. They are now like how emperor moth caterpillars are suppose to look like as featured in my books.
Their new home! 
And while the caterpillars are getting a new skin, my parents and I have been busy building them a new home. I've bought them a new box, which is more of a bucket bin with a lid and is not only big enough for them but also for bramble branches as well. That's right, they will no longer just be able to crawl around the bottom of a box, but can also climb branches just like their wild cousins. To keep the branches fresh for longer, they've been placed into a jar of water and are threaded through holes in the lid that were drilled into and plugged up with blue tac to prevent my caterpillars from falling in and drowning. I've moved a few of the more lively individuals into their home, along with the freshly emerged pair. I hope they will be ok in there?
One of the new-skinned caterpillars

One caterpillar enjoying it's new home!

Friday, 1 June 2018

May 31st Mousehold Heath

Moth Night at Mousehold 2018
It was moth night at Mousehold Heath last night. Despite it being a bit misty, it was a pretty decent turn up. We had plenty of decent moths on offer, including a couple of new species for the site, such as the shoulder-striped wainscot. Here's some of the highlights....
Shoulder-striped Wainscot


Pale Prominent
Clouded Silver
(A worn) Brown Silver-line?


Maiden's Blush
Straw Dot


Silver-Y (a summer migrant)
Common Marbled Carpet
Treble-lines
Spectacle Moth
Peppered Moth
Scorched Wing
Heart and Dart
Clay?
White-pinion Spotted