The Portland Naturalist

The Portland Naturalist
Showing posts with label Thistle Ermine. Show all posts
Showing posts with label Thistle Ermine. Show all posts

Wednesday, 25 June 2014

One good Tern deserves a Moth-er

Ages since my last non-away trip post, but wildlife excursions have been few and far between.  We start with a day that fell between my two trips abroad.

27th May

I set up at the West Cliffs in the hope of some late vismig, not expecting a great deal.  At one point I noticed four distant birds flying with a bounding flight towards Southwell Business Park.  I couldn't make out any colours, and the shape was indistinct, but I put them down as Skylark.

After giving up, I checked Twitter and found that a party of four Bee-eater had been commuting around the south of the island for last hour or so.  They had to be the birds I saw earlier!  I immediately went back out to try and find them again. 

Almost immediately I found four very promising looking birds flicking about behind Southwell Business Park, again too distant to pick out any detail.  I contemplated trying to get closer, but with them being so mobile, I thought that was a bad idea, and I instead stayed put in the hope they might fly in my direction.

They had been out of view for quite a while, when I thought I glimpsed one over Southwell, heading north.  Not long after, I glanced over towards Suckthumb Quarry, only to find all four Bee-eater hawking over it!

I jumped in the car and zoomed round there.  They weren't immediately obvious, but as I jumped up on one of the boulders by the entrance, they all flew up from a Bramble bush!  They flew around a bit, then headed off north towards the windmills.

I think me seeing my first ones in France just last week definitely helped me initially pick them up at distance from their flight action etc.  A cool UK tick!

8th June

I was in Surrey today in transit from Italy, and due to head back to Dorset.  I was hoping the Short-toed Eagle was going to be pinned down in the New Forest, so I could do a conveniently-placed twitch.  Sadly, it wasn't to be, though as I was seeing them literally two days ago in Italy, I wasn't too disappointed.

Instead, I headed to my beloved Tice's Meadow, not expecting a great deal.

It was nice to see the breeding Black-headed Gull and Common Tern doing well on their new raft.

Suddenly, I found a Little Tern flying around amongst the close Terns.  That's two short visits to the site in a month, and two Surrey rarities!  Also a first for the site I think.

It stayed about for a little while, before seemingly heading off high North-east.  I later discovered it had earlier been at nearby Fleet Pond.

13th

A new arrival was worth heading for at the Bill.

As soon as I got to the Top Fields, I could hear the Thrush Nightingale singing it's incredibly varied and powerful song.  I set up for a vigil, as it sang from very dense scrub.

While waiting, there were a number of Magpie Moth flicking about, the first time I can recall seeing them flying actively in the day.


Myself and the rest of the small crowd kept watch for some time, but despite several further enthusiastic periods of song, the bird failed to show itself.  Not all that surprising really.

I headed back home via various sites in the hope of bumping into the Hooded Crow that had earlier flown north from the Bill.

In Suckthumb Quarry I came across a Thistle Ermine.


Also here, I found a plant I didn't immediately recognise.  All pointers seem to suggest it was Marsh Pea, which is very rare in Dorset.  More on this later.


14th

This evening was my long-awaited first guarding of the Chesil Little Tern colony.

They were great to watch, chasing everything that even came close to the colony, even Great Black-backed Gull!

They are doing so well, with 18 chicks at this point, and loads of eggs about to hatch.  I was keeping a close eye on two particular pairs that were next due.



There was plenty of other birds to be seen, such as a surprise fly-over Redshank, and a Gannet in Portland Harbour oddly.

The other interesting sighting concerned a summer-plumaged Plover which was initially thought to be a Grey.  But, when seen head on, it had a distinct golden tinge to it, something which is also evident in the pics I took (particularly the first one).
 




 Seen close-up, it clearly had several yellow feathers in it's crown and mantle.  I was seriously thinking it may be a 'lesser' Golden Plover.

But, it was later flushed as the Little Tern project co-ordinator Morgan (who incidentally, was also convinced the bird was a Golden Plover sp.) went to check the colony, and it revealed itself to be a Grey Plover with its call and underwings! 

Presumably, I was caught out by the fact that I've just not studied summer-plumaged Grey Plover in that much detail before!

I watched the sunset from my beach-top vista.


It was at this point when the Chesil Hare began to show themselves, and the Terns went just as mad at them when they entered the colony as when the Gulls do!



Just before I was about to leave, I took a last glance at pair number 8, only to see the bird on the nest looking very restless.  Eventually, I got a glimpse of a newly-born chick sticking its bill out the edge of the nest.  New arrivals!

15th

I found a Drinker moth caterpillar on the pavement whilst out working.


16th

After a couple of missed opportunities (including me failing to find the Grove pig farm!), I finally managed to see the long-staying Hooded Crow at the Grove.  It took a while to appear, but eventually showed itself among the flock of 80 or so Carrion Crow.  A nice Portland tick yes, but its not within my patch.  Its flown over the patch several times now, without me getting on it! 

21st

My second stint watching the Little Tern was less eventful than the first, but it was great to see 55 chicks doing so well, and on the dead calm sea, the adults were finding it so easy to catch fish.  At one point, one pair brought back three fish in the space of five minutes!

They are getting big now (for a Little Tern!).





 


22nd

Straight after the Terns, I headed to Broadcroft Quarry to see how the moth trapping was going, on a Butterfly Conservation event.

It looked promising in warm conditions.

The next morning we emptied the three traps.


The total of 120 odd species was one of the highest I've ever experienced.  Despite this, there were no new macros for me, but there were a few good micros.  Some of the lifers for me were Aethes beatricella, Pelochrista caecimaculana, and Delplanqueia dilutella.
 
After that, we went on a butterfly walk.  Among the highlights were Small and Silver-studded Blue.
 
Also among the highlights were the Shieldbug Eurygaster testudinaria.
 
 

Plus, I was finally able to solve the 'Marsh Pea' mystery, as the plant was everywhere here.  It turned out to be Slender Tare, which is a speciality of the site.  Not as rare as I'd hoped, but still a lifer for me.


 
 
Not a great deal of wildlife watching on the horizon, though there are a number of moth events coming up, and will I finally get the chance to see that pesky Short-toed Eagle?

Wednesday, 10 July 2013

Barrow's of Butterflies

A day off work today, so I made the most of it.  Yet another scorcher, and despite my best efforts of suncream usage, the great fireball above still managed to infiltrate my epidermis.  For those English-speakers amongst you, I got burnt.  Nevertheless, it was a fantastic day for butterfly-watching, which is what I spent much of the day doing.

First though I thought I'd pop into the Obs to see the moths.  The trap was certainly heaving, amongst them some brilliant lifers. 

It may not be rare, but this monster below has been my bogie-moth down the years, so great to finally catch up with it.  Definitely the highlight as far as I'm concerned.


Eyed Hawk-moth

By far the rarer moth, though certainly isn't a looker compared with the Eyed, is this Portland Ribbon Wave.


The other lifer was this Crescent Dart.
 

Some of the other highlights of the trap below.

Male Glow-worm


Synaphe punctalis


 Short-cloaked Moth


Sycamore 



Thistle Ermine 



Dark Spectacle 



Large Fruit-tree Tortrix

I then decided to do a little seawatching from the Bill despite the unpromising looking conditions.  An hour or so brought the only highlight of a flock of 19 Common Scoter with an infiltrating Teal.  Also a couple of Mediterranean Gull feeding offshore.  The shot below is quite a contrast to my shot (on Twitter) there from a couple of weeks ago!


 

Late morning, I went out on a guided butterfly walk at the fantastic King Barrow Quarry - a Dorset Wildlife Trust reserve.  On the face of it, it don't look much like any other quarry on Portland, but that still makes it high in biodiversity! 

 
A different feature was this tunnel going right through the spoil heap.  It was refreshingly cool in there!

 
The Lepidoptera was excellent, and included in the list of 12 or so butterfly species was several Silver-studded Blues, a probable Adonis Blue, Dingy Skippers, Marbled Whites, and a Grayling.  The latter a first record for the site.  A few moths were spotted too.  Alongside the expected Burnet moths were sightings of Barred Yellow, Green Carpet, and Crambus perlella.  A new plant for my Portland list was the unobtrusive Parsley-piert.  The scorching weather meant the butterflies were very jumpy, so I only managed this one passable shot.

Large Skipper 


Come the afternoon, I thought I'd check out the adjacent New Ground and Nicodemus's Knob, primarily for plants.  It's not a bad view from up there (and you'll notice, there are now clouds!).



Here I found the first Field Scabious in flower.

 

And, managed to get to grips with the rare Ivy Broomrape.  I suspect that all the Broomrapes I've seen on the island up to now have been this species, rather than Common!

 
I also saw two new (UK) species of Wild Madder (below) and Shining Crane's-bill, which I saw in abundance last week in Ireland, where I got to grips with separating it from the similar Herb Robert.

 
I also found a swarm of these tiny moths, which I believe to be Micropteryx aruncella.



 
 
 Pair in cop
               
A family group of 5 Raven were doing aerobatics in this area too.  On my way home along the West Weares, I saw a Mother Shipton moth, and probably heard one of the juvenile Peregrine screeching from their nest there, but couldn't locate them.
 
Lets hope for some cooler weather tomorrow!