Titchfield Haven Bird Ringing - Late August update

It has been a very mixed bag this season at the Haven which has not been helped by the very changeable weather. Fortunately Barry is retired which means that he can do some sessions during the week in order to keep our effort constant, but Duncan and I are getting limited opportunities to ring at weekends. If we are lucky we may be able to get one session a week, which is great for catching up with sleep, or doing general birding, so we can't complain, but we would rather be ringing.

Despite the inconsistent weather conditions the overall ringing total for the year is holding up reasonably well, but unless there is going to be a very late surge in the numbers of migrants it is looking like this year the totals will be at best average. That said there are some notable exceptions; on the down side, the Grasshopper Warbler total remains exceptionally low with only 36 birds ringed to date. For the period 2010 to 2014 inclusive, by 23rd August the average is 143 birds, so this year's total is significantly lower that we would have expected. It won't be the lowest total since 1998 as we have already passed that, but could be within the bottom five.

Juvenile Grasshopper Warbler

On the flip side of that, the Reed Warbler total currently stands at 450, which is the highest total for the period 2010 to 2014 by 23rd August, and well above the average for that period which is 293. The overall total for all species for the period up to 23rd August stands at 1310 birds of 20 species. 

A summary of selected species from 2010 - 2015 up to 23rd August

A summary of selected species from 2010 - 2015 up to 23rd August

The only unusual record is a Common Nightingale that is only the sixth ever ringed at the site. There has been very little evidence of visible migration over the last few weeks, with the odd Tree Pipit and Yellow Wagtail and on 2nd August a Marsh Harrier. 

Common Nightingale - Note the pale tips to the tertials confirming this bird to be a juvenile, also the first primary can be seen extending 
beyond the longest primary covert, thereby confirming it as a Common not Thrush Nightingale (B. S. Duffin)

On the morning of 22nd August we held one of our public ringing events, which was well attended as usual. The session was steady, with 78 birds ringed, Reed and Sedge Warblers were as ever the most numerous species, but five Grasshopper Warblers were very welcome. Once again there was very little evidence of visible migration, the most notable species being Yellow Wagtail, with two birds and a single Common Swift. Just as we closed the nets a couple of sparring Sparrowhawks put in a great aerial display before drifting off to the east.

Sparring Sparrowhawks

After the session I stopped for a quick look off the sailing club at Hill Head with Simon Ingram, who had joined us for the mornings ringing session. There was a flock of around 100 terns roosting on the shingle but unfortunately, as is a common theme these days, the level of disturbance was very high with kayakers, fishermen and dog walkers continuously flushing the birds to the point where there was nowhere for them to settle. Simon was intent of finding a Black Tern and after a quick scan through the flock, looked out to sea, I concentrated of the roosting terns as there was a constant turnover of birds. It wasn't long before I picked out a cracking adult Roseate Tern, I quickly got Simon onto it and then we put the news out. The speed at which we did that enabled Graham Barrett, who was on the other side of the harbour, to get onto the bird, before once again, the flock was flushed, this time they did not return.

Bird Ringing again at Botley Wood

After what has seemed like an absolute age I finally got my act together and arranged to do a bit of bird ringing over the last few days. The first session was on Sunday 10th May at Botley Wood; Chris and I started at 6am and set a few nets along the road in our usual net rides. It was a fairly slow session with only 16 birds ringed, but they were all quality birds. The most numerous species was Garden Warbler, one of which was a retrap from last year.

Garden Warbler - Botley Wood

The next most numerous species were Chiffchaff and Bullfinch with three birds trapped, unfortunately one of the Bullfinches could not be ringed due to growths on it's leg. All three birds were first winter birds, the buff coloured tips to the greater coverts are very obvious on the bird below.

Make Bullfinch - Botley Wood

The other species were two Blackcaps, one a retrap from last year, and single Great Tit, Blackbird, Long-tailed Tit, Dunnock and Whitethroat. 

Later in the afternoon I opened a net in the garden and ringed eight new birds, four Greenfinches, and single House Sparrow, Dunnock, Nuthatch and Great Spotted Woodpecker. The Ring-necked Parakeet was hanging around the area but fortunately did not come into the garden.

After work on Monday Rob and I decided to head back to Botley Wood for another ringing session. It had been a while since Rob had last done any ringing so he was ken to get out and the weather looked good. We set four nets within what I thought were Nightingale territories and hoped for the best. As it turned out my hunch was right, and we eventually caught two Nightingales, both adults and both males (based on the fact they sang once released). There was one other Nightingale singing on a territory where I had caught one last year so I presume it to be that same bird, hopefully I will find out over the next couple of weeks.

Male Nightingale - Botley Wood

Male Nightingale - Botley Wood

The session included two Blackcaps, one a retrap from last year, a Wren, Long-tailed Tit, Chiffchaff and Coal Tit. Over the three sessions we ringed 33 birds of 15 species, so not a bad few days.

The Barley Birds are back again

There is an inevitable re-occurring theme with this blog, other than the obvious general birding and ringing one that is, and that is my fascination with the Common Nightingale. Every April I search traditional territories within my patch and try to establish how many there are. It can be very frustrating at times, as the secretive nature of the species means that I will hear them, but often obtain just fleeting glimpses. Over the years I have learnt the patience is the key, and that is exactly what made this mornings visit to Botley Wood a successful one. 

I arrived on site early, just before sunrise, and began my usual circuit. The Ravens were again very obvious, but I am barely even giving them a second glance at the moment. Blackcaps, Chiffchaffs and a few scattered Willow Warblers were still the most notable of the summer migrants, until I walked up the first ride and heard a Nightingale, my first of the year. The bird was fairly close to the path, but was on the opposite side of the vegetation to me so I crept through a small gap and waited. Although they often sit in the open, Nightingales will perch close to a branch and usually behind it if they have seen you, this makes them very difficult to pick out in spite of their loud song. My first male was in full song and very close but initially I couldn't see it. I stood and patiently waited and eventually picked out some movement in a willow tree. The bird flicked left and perched up right in front of me. At this point, the bird was in the open but I was in vegetation and so getting a clear shot was a challenge. I was eventually able to manoeuvre myself so I could get a couple of shots, while the bird continued to sing....just brilliant! This bird was an unringed male, that may be the same bird as last year as I failed to catch the bird on this territory last year.

Male Nightingale

Male Nightingale

Male Nightingale

Male Nightingale

I continued around my usual circuit and could hear two more birds, one was only giving occasional bursts of song, but the other was in full song. I decided to look for that one and was again rewarded with some great views of a singing male, this one also unringed. Whilst watching this bird a second bird was skulking in the dense undergrowth close to me. This bird was not singing but uttering the typical 'wheeling' and 'croaking' calls, so may well be a female.

Male Nightingale

I pressed on with my circuit and picked up the male Lesser Spotted Woodpecker again, Great Spots and Greens were also very vocal, th good weather was clearly encouraging them to call. As I continued it was evident that the Chiffs and Blackcaps were busy nest building. A Chiffchaff was grabbing spiders web, much the the spider's annoyance I should image, although its was better than being eaten.

Chiffchaff nest building

A male Blackcap was singing its scratchy sub-song whilst the female was busy nest building in a small patch of bramble. While I was watching it a second male was paying the female a bit of attention, this went unnoticed by the singing male for a minute or so, but he was quick to see off the intruder once he did.

Male Blackcap

Botley Wood Bird Ringing Again - May 2014

I have now found six common nightingale territories in the vicinity of my Botley Wood study area, so I decided that much of the bank holiday weekend would be spent trying to catch some. The weekend started well with a second new bird of the year caught at a previously unused or unknown location. Unlike the first bird of the year, this bird was a bit more tricky to age, at first glance there were no obvious pale tips to the wing feather coverts, thereby suggesting it was an adult. However on closer inspection a pale covert tip was present on the outermost greater covert, so I aged this bird as a 5.

Common Nightingale - the second new bird of the year

Unfortunately, the good start to the weekend did not continue as this was the only nightingale caught, but at least I did get to colour ring this one. Since my last ringing session, there has been a mass arrival of garden warblers, with a least six males on territory. Despite my nets being located in many of their territories only one bird was trapped and ringed.

Garden Warbler - Botley Wood

Typically adult and juvenile garden warblers undergo a complete winter moult and therefore it is not be possible to age them in the spring. Common whitethroats were also much more evident, with at least four territories present. Three birds were trapped during the session, one new bird and two retraps, one that was ringed in May 2013 and one that was ringed in May 2012. 

Adult Male Common Whitethroat

Ageing and sexing common whitethroats in the spring can be problematic for anything other than an adult male. This bird was originally ringed in May 2012 as a male bird, and therefore being two years since ringing, this bird was definitely an adult. The first give away to its age was the colour of the iris. Svensson describes the colour as orange or reddish-brown, which pretty much describes the colour of this individuals eye.

Adult Common Whitethroat 

In a male bird the throat should be white, and the crown, ash-grey, but admixed with brown, and the breast should have a pinkish flush on the breast. This bird was certainly showing a white throat and when the head feathers were raised up they were extensively grey, but this individual lacked the pinkish wash on the breast. The final feature is that the outer tail feather should be pure white, which it was on the outer web but not the inner web. There was no doubt that this bird was a male though, as on release it flew to the nearest bush a sang.

Adult Common Whitethroat Tail

By the end of the session we had ringed 20 birds which included chiffchaffs, robins, long-tailed tits, blue tits, a blackcap and a female bullfinch. After the session I went for a wander and saw that some moorhen chicks had hatched. There were two chicks and despite the best intentions of their parents they appeared not to have learnt the alarm call yet as they swam straight up to me. Unfortunately moorhen chicks have a tarsus that develops slowly and therefore when they are this small it is not possible to ring them.

Moorhen Chick

This time last year I saw both grizzled and dingy skipper, but I only saw dingy this weekend. The one individual that I saw seemed to have a deformed hindwing on one side, but it still seemed to be flying ok.

Dingy Skipper Erynnis tages

After a good start to the year at Botley Wood butterfly numbers seem to have dropped off, as this weekend I only saw four species, brimstone, orange tip, peacock and the skipper, and only singles of each.

The First Common Nightingale of the Year - April 2014

I had a spare couple of hours last night (28th April) and so headed down to Botley Wood with Mark Cutts in the hope of catching my first common nightingale of the year. We headed to an area where I had seen an un-ringed male bird that appeared to be already paired, back on the 24th April. A bird was singing as we arrived, but much further back in the vegetation than I had seen it, but given my experiences last year, I presumed it was the same bird. Last year I had ringed a new male at this location and had colour-ringed it, so it was slightly disappointing that it had not returned. We put up a couple of nets, and almost on command the male bird flew back to the main track, where one of our nets was, and began to sing. The bird was very excited and singing in full view before heading down the hedge and straight into our other net.

First year male Common Nightingale - Botley Wood

The bird was un-ringed and therefore was presumably the bird I had seen a few days before. It was first year bird (hatched last year) which was immediately evident due to the pale tips to five old greater coverts, the primary coverts (see below) and the tertials.

Pale tips visible on outer five greater coverts and tips of primary coverts

The BTO have recently changed the ring sizes for some species. Previously adult birds were ringed with an A size and pullus with a B size, now A and B can be used for adult birds. I have often felt that an A ring was a little too small, and this was the case for this bird too so I opted for a B. The only annoying thing was that in my haste to get out I forgot to pack my colour rings, that will have to wait until next time.

This year looks like it might be quite a good one, since I personally have recorded five singing males so far and have heard of two others, so hopefully some got re-traps among them.

End of Year Review, December 2013

So here we are at the end of my third full year writing this blog, I hope you have enjoyed its content and would like to thank all those who follow it and those who have visited over the years. This year (2013) has been an interesting one for me as back in February I started a new job, which I had hoped would give me more spare time to enjoy bird ringing and other natural history activities. In reality, more spare time meant more out of work social commitments, which did limit the amount of free time I had, and three stints in hospital were certainly not welcome. Despite the set backs I still had a great year which resulted in several new birds in for me in Hampshire, over 20 new moth species in the garden, a couple of new birds in the hand and ended with a British tick (Brunnich's guillemot). In typical fashion for a year end post I thought I would do a quick summary of my personal highlights of the year, and please feel free to share yours with me.

January
The start of the year for me was all about trying to see as many bird species as possible on the patch. There were no real highlights to speak of with this, that came in the form of a recovery notification from the BTO of one of the common nightingales that I had ringed at Botley Wood. Unfortunately the bird was found dead in France 488 days since being ringed, which was not good news for the bird, but was my first foreign control of this species since starting the project.

Adult Common Nightingale - Sadly found dead in France

February
The long staying and very confiding black-bellied dipper at the BTO HQ Thetford in Norfolk was the first that I had seen in the UK, and got my annual Norfolk pilgrimage off to a good start.

Black-bellied Dipper - Norfolk

March
Eurasian siskins came into my garden in good numbers this year and I ended with a record number of 40 new birds ringed, beating the previous best of 12 back in 2003. Individuals were trapped throughout January, February, March, April, May and one bird was re-trapped in August. The peak month though was March when 22 new birds were ringed.

Male Eurasian Siskin

April
The return of the common nightingale is always a highlight for me and this year was no exception. At least eight singing males were back on territories, and I managed to catch four of those, one being a bird from May 2009. This month was also memorable for the presence of a singing male common redstart and a lesser spotted woodpecker, both found whilst surveying for nightingales.

Retrap Adult Nightingale - Botley Wood

May
Being my 25th wedding anniversary this year my wife and I took short break to the Greek Island of Rhodes. There were no new birds for me but we did have a great trip with a variety of wildlife being seen. The highlight for me had to be snake-eyed lizard which was stunning beast, the resultant blog post has become the most read post on this site. 

Snake-eyed Lizard, Rhodes

June
The undoubted highlight for me this year was being invited out to ring northern goshawk pulli. I had ringed common buzzards before but the size of these birds, in particular the females and their talons was amazing. The low point was being savaged by a cat and spending four days in hospital with an infected arm.

Juvenile Goshawk

July
Mothing really took off this month and checking the trap before work became near on impossible due to the numbers present. On one date I recorded 250 moths of 90 species in the garden and by the end of the year I had recorded 310 species. The second high point was surviving being knocked off my bike by a car and only needing seven stitches in a gash on my chin and having mild concussion for 48 hours.

White Satin Moth - a new species for me

August
Ringing was starting to get into full swing at Titchfield Haven and on 17th we ringing 223 new birds, with 24 of those being garden warblers, the most we have ever caught in one day by a long way.

Garden Warbler - Titchfield Haven

September
This month was memorable for two amazing highs, catching my first, and second, Clifden nonpareil moths whilst staying at Castlehaven on the Isle of Wight; and seeing the first brown shrike to ever be recorded in Hampshire. An excellent find by Bob Marchant.

Clifden Nonpareil at Castlehaven, Isle of Wight

October
There were many highlights during October, but these were sadly all overshadowed by the untimely death of Tim Lawman, a popular and active member of the Hampshire birding scene. The highlights were finding a yellow-browed warbler at The Hampshire and Isle of Wight Trusts (HIWWT) Testwood Lakes Nature Reserve, and then another at Anton Lakes whilst waiting for Hampshire's second ever Radde's warbler to show. The semi-palmated plover at Sandy Point on Hayling Island, a truly amazing find by Andy Johnson. And if all that wasn't enough, it ended with us catching our first, and Hampshire's third Radde's warbler at Titchfield Haven. What an autumn this turned out to be!

Radde's Warbler at Titchfield Haven

November
Ringing bearded reedlings (or parrotbills) at the HIWWTs Farlington Marshes reserve was a real treat, but the undoubted highlight had to be the phenomenal starling roost of 10,000 to 100,000 birds at their Blashford Lakes nature reserve. As natural history spectacles go this is one of the best I have seen and is still continuing as I write this post. If you get the chance it is definitely worth a visit and if you are lucky you may even get the see one of the two bitterns wintering there.

A Murmuration of Starlings at Blashford Lakes

December
There is only one contender this month and that was the Brunnich's guillemot in Portland Harbour. We were heading home after spending Christmas in Cornwall and made the short detour. A cracking bird and a British tick for me to end the year on.

In Search of the Barley Bird....

After a couple of days wandering around Botley Wood looking for common nightingales, the aim today was to try and catch some. The plan was to start at 6 AM, but after what can only be described as a slightly tardy start by Izzy, we eventually started at 6:45. It had been cold overnight and with the exception of blackcaps, chiffchaffs and willow warblers there was not much in song. 

We started at the first territory, and were soon listening to, and watching a male nightingale singing. That was expected, but the surprise was that this bird appeared to be paired, because a second bird was working its way to and fro along the hedgerow 'wheeting' and 'croaking'. Unfortunately neither bird ventured into the net.

Adult Male Nightingale

Our next stop was the territory where I had managed good views of a singing male last week. This bird was again silent, but we could hear more 'wheeting' and 'croaking', perhaps indicating that this bird was also paired. I knew that this bird was unringed and soon we had captured and ringed it. The bird was an adult male with a wing of 85mm and a weight of 21.8 grams. I have been studying the species since 1998 and as part of the study I colour ring birds so that I can observe individuals in the field. 

Adult Male Nightingale - looking very dapper with his new colour rings

We waited in the hope that we might catch a female but unfortunately we failed. We packed away our nets and headed off in search of the next territory past one of the on-site ponds. Great crested newts breed at this site so we stopped to check for any evidence and soon found loads of leaves folded over in the distinctive newt way. Unfolding, one of the leaves we were able to confirm that inside were the eggs of great crested newt. At this point I should point out that you need to be licenced by Natural England to disturb great crested newts, and both Izzy and I are, and so we were not committing any offences.

We pressed on and went to check out an area of land which is not part of the reserve, but we have permission to enter. As were approached the area we immediately heard a drumming woodpecker, which sounded more prolonged and rapid for great spotted. We hurried to the area and soon found a male lesser spotted woodpecker drumming on a dead tree.

Male Lesser Spotted Woodpecker

This is a very difficult species to see these days, but one that I have seen at Botley Wood before, but only once. This bird was a great performer and gave us some prolonged views before flying off in a northerly direction.

Male Lesser Spotted Woodpecker

We spent a while searching the area looking for suitable nesting trees and a female but unfortunately we had no joy. Nonetheless we were so pleased to have found this bird, in fact I was planning an early start to look for them at Manor Farm Country Park tomorrow...maybe I will have a lie in!

Male Lesser Spotted Woodpecker

Whilst waiting for the bird to return Izzy started looking beneath some wooden cladding on a small shed, and before long she had found some bat droppings and a roosting pipistrelle bat....what a day!

More Birding on the Patch and Beyond...

With the weather set fair this weekend I was hoping to get in some spring ringing, but unfortunately that didn't happen. Instead I spent the time birding at various locations within my patch and on Sunday (April 21st) I ventured further afield to Hampshire County Councils Hook with Warsash Local Nature Reserve. Saturday began with another stroll around Botley Wood, every visit this week has yielded new species, but not today. Willow warblers, whitethroats, chiffchaffs and blackcaps, all seem settled on territories, and a fly over raven was a good record, but the best news was the return of my second nightingale of the year.

Male Nightingale - Botley Wood

I have been colour-ringing nightingales at this site since 1998 and so always spend a bit of time trying to track down a bird when I hear one. After a bit of of stalking I was able to track down a male in full song. Initially it didn't show its legs, but after a bit of maneuvering I got a good view. Unfortunately this bird was not colour-ringed, but its good to see new birds still returning to the site.

Male Nightingale - Unfortunately not a colour-ringed bird

My next stop was Manor Farm Country Park. I had been asked to do a dawn chorus walk on Sunday 21st and so thought I would go and have a look around to plan my route. But no visit to Manor farm would be complete without checking the resident house sparrows for colour-rings. After a couple of hours, and some very patient observing I had manged just two birds...not what you would call a raging success.

Male House Sparrow - Manor Farm Country Park

My patience was rewarded in a way though, as whilst watching a couple of sparrows I noted a couple of robins carrying food. Pretending not to watch, I was soon able to track down the nest to a metal jug hanging in a garden shed.

This Robin is clearly not an arachnophobic since it had a pretty big
Tegenaria sp. spider in its beak

The brood was snuggled down in the bottom of the jug, out of sight of predators and in the dry and warm.

Happy family Snuggled in their Nest

Fortunately, I had brought my ringing kit with me and quickly put a ring on each of the brood of four before moving on. 

Robins certainly do look better with Feathers

Ringing birds in the nest (pulli) is a valuable resource since it provides the precise age of a bird and its place of origin, and therefore in the case of longevity and dispersal studies it can be extremely useful. I will be watching this brood over the next week to see how they get on.

A handful of Robins

After a couple of hours at Manor Farm my next stop was Curbridge. I had timed my arrival with the falling tide, and by the time I got there it was pretty low. Several wader species were present, including two common sandpipers, 10 common redshank, two oystercatchers and nine greenshanks. Greenshank numbers tend to be at their highest in the spring at this site, with two or three birds usually spending the whole winter.

Three Greenshanks and and Oystercatcher

Whilst scanning the waders I noticed another medium sized wader on the mud and was pleased to see my first whimbrel of the year. The number of whimbrels present at Curbridge in the spring has previously reached over 100, but in recent years those numbers have dropped off, and now they rarely number more than 20 or 30 individuals, at any one time. 

Sunrise over the River Hamble

Sunday began with, what can only be described as, a ridiculously early start. I was up at 03:45 and at Manor Farm by 04:30, but I was not alone. The enthusiastic attendees for my dawn chorus walk arrived not long after me, and before long skylarks began to sing, along with little and tawny owls. Before long blackbirds, song thrushes and robins had joined in and the dawn chorus was in full song. We took a route around the park, and more by luck than judgement, were perfectly placed to watch the sun come up over the River Hamble. Great, blue and coal tits soon joined in the chorus, as did nuthatches, green and great spotted woodpeckers. A lone whimbrel fed on the inter-tidal and three oystercatchers flew overhead, kleeping as they went. Every year this dawn chorus walk seems to coincide with great weather and this year was just amazing, however hard it is to get up in the morning...on a day like this it is always worth it just to watch the sun come up.

Sunrise over the River Hamble

After a well deserved afternoon nap, a nipped out for a bit of of patch birding. There have been a couple of little gulls at Hook with Warsash over the last couple of days, so that seemed like a good place to start. I arrived in time to see both birds feeding over the lake along with an Arctic tern, which was an unexpected surprise. Both of the little gulls were 1st winter birds, one had a complete tail band and one just two dark tips on the outer tail feathers, so the two birds were easily separable. They fed over the lake for about 30 minutes before heading off north and up The Solent.

First Winter Little Gull

Other species present included lapwings, gadwalls, swallows, little egrets, redshanks, black-headed, common and herring  gulls, three oystercatchers a curlew and a very obliging whitethroat.
 

Common Whitethroat