Sunday, 12 October 2014

Times they are a changing, Titchfield Haven Ringing Update - October 2014

This post reflects changes on two levels at Titchfield Haven; the first is that after 42 years of bird ringing at the Haven we have decided to set up a ringing group. Titchfield Haven Ringing Group (the obvious name to choose) has been formed in the hope that we can build a keen group of bird ringers who will help continue with our ringing studies at the site in the future. We currently have a group of three qualified ringers, Barry Duffin, Duncan Bell and me (Trevor Codlin) and several trainees, who are progressing well towards their ringing permits.

The second change is the season; summer is now well and truly behind us and autumn has arrived, although the severe thunderstorms we have had this week have been a bit out of season. Bird ringing has become slightly more unpredictable during the first half of October, due to some very variable weather. Despite this, and the fact that we are now approaching the middle of October, bird numbers have been holding up well. On the 3rd October 114 news birds were ringed, on the 5th October 145 and today, 11th October, 84 new birds were ringed. Of course the species mix has changed and Reed, Sedge and Grasshopper Warblers no longer predominate the numbers, instead we are faced with large numbers of Chiffchaffs and Blackcaps. Reed Bunting numbers have also picked up and we have now ringed 21 new birds.

Occasional gems also pop into our nets and so far this October they have been in the form of two Bearded Reedlings, one male and one female, and a Stonechat. Bearded Reedling is not an uncommon species at Titchfield Haven, but the reed bed is so vast that they rarely stray into our ringing area, so these two were a real treat and the first of the year.


Male Bearded Reedling - © B S Duffin
Female Bearded Reedling - © B S Duffin

Similarly, the Stonechat is another species that does breed along the Meon Valley, and is regularly seen by us as we carry out our studies, but not often caught. Only 31 Stonechats have been ringed at the Haven since 1972, this individual was the first ringed since 1996, so a bit of a rarity in ringing terms.

Stonechat - © B S Duffin

The total of new birds ringed for the July to October ringing period has now passed 4400, and as I have stated in previous posts, there have been some very notable totals. Willow Warbler was the first with a record number of 270 birds ringed, and the Blackcap total has also set a new record, with the magic number of 800 new birds fast approaching. The Sedge Warbler total of 1225, is the fifth highest total, whilst the Reed Warbler total of 689 is the second highest. The Grasshopper Warbler total of 340 in also the fifth highest, and Garden Warbler at 67 is the third highest. Common Whitethroat numbers were at their second highest and Cetti's Warbler numbers are also high. A species that I haven't really mentioned before is the European Robin; currently the total for the year stands at 80 birds, only four off equalling the previous highest total. I haven't mentioned Chiffchaff yet because the migration of this species is still in full swing, with over 50 birds ringed today. As we approach 600 new birds ringed this total is already the second highest ever, but is unlikely to surpass 2011 when 858 new birds were ringed.

Thursday, 9 October 2014

Avocet and Lesser Black-backed Gull Details

I have recently heard back from Graham Giddens with details of the colour ringed Avocet I saw at Titchfield Haven on the 12th September and Paul Veron with details of the Lesser Black-backed Gull that I saw at Davidstow on the 5th October, and so as promised here they are.

Juvenile Avocet, Titchfield Haven NNR - 12th September 2014

The Avocet (green/blue-white/light green) was ringed at Needs Ore Point as a chick on the 14th July 2014. It was first recorded at Titchfield on the 7th September 2014, when it was recorded feeding with other juveniles. Graham informs me that out of 19 chicks colour-ringed, 11 have been sighted away from Needs Ore and all 11 of them have gone to or passed through Titchfield Haven at some point. Graham is gaining some interesting data which suggests that the Haven may be an important post-breeding/moulting site for Avocets.

Adult Lesser Black-backed Gull, Davidstow Airfield, Cornwall - 5th October 2014

The Lesser Black-backed Gull was first ringed at Chouet Landfill, on Guernsey in the Channel Islands on the 21st May 2012. It was aged as an adult (four or more calendar years old) and sexed as a female. On the 15th September 2012 it was recorded at Davidstow Airfield, Cornwall, England. It was recorded in France at Champteusse sur Baconne, Maine et Loire on the 15th November 2012. The next sighting was on the 12th September 2014 at Davidstow Airport again, where I recorded it on the 5th October 2014.

If you ever find a colour-ringed gull you can check out which scheme it is from by checking the European colour ringing site http://www.cr-birding.org and if a bird turns out to be one of Pauls birds you can enter details yourself on his site, which is http://birdrings.digimap.gg/Default.aspx.

Tuesday, 7 October 2014

Birding in Cornwall - October 2014

This last week I have been on a family break in Cornwall. I was hoping to connect with some good birds whilst down here, and at the very least see some migrants. We were based at St Merryn, on the north coast and within walking distance of Trevose Head and the Stepper Point/Crugmeer area. 

Booby's Bay - Cornwall

The first spot I birded at was Booby's Bay, which is located on the Trevose Head peninsula. There was limited bush cover on the headland itself, but there was plenty around Booby's Bay and the nearby golf course. Birding was tough and there were very few migrants to be found, in fact the most numerous species was Northern Wheatear, with four birds present one evening, otherwise it was just a scattering of Chiffchaffs.

Northern Wheatear's - Booby's Bay
Around 30 Oystercatchers, a Curlew and a Turnstone were feeding regularly on the rocks in the bay and Northern Gannets were present offshore. Whilst scanning over the bay I noticed a dead seal pup being washed in on the rising tide. On closer inspection it appeared to have been in the water for a while as fur had started to lift from its skin, particularly around the head and face. Blood was still present from what appeared to be its umbilical cord, suggesting that it might have been still born. Looking at the head shape it looked like it was a Grey Seal pup.

Dead Seal Pup - Booby's Bay

The Crugmeer/Stepper Point area was my favoured birding area. The meadows were full of Meadow Pipits, Linnets and Skylarks, and there were plenty of Stonechats present. A small wooded valley that leads to Harbour Cove, had lots of potential for migrants and the adjacent cabbage field was popular with Meadow Pipits and Linnets. There was a report of a Lapland Bunting on one day, but I couldn't find it.

Stonechat - Crugmeer/Stepper Point

Despite the lack of birds there was a good variety of butterflies present, Small Copper, Clouded Yellow, Small and Large White, Red Admiral, Speckled Wood, Small Tortoiseshell, Peacock and Painted Lady were recorded regularly, but the most numerous species was Wall Brown, a species which is quite uncommon in Hampshire these days.

Small Copper - Crugmeer/Stepper Point
Wall Brown - Crugmeer/Stepper Point
Wall Brown's - Crugmeer/Stepper Point

On the 2nd October I met up with a mate and spent the day birding the valleys west of Penzance. We visited Porthcurno, Polgigga, Porthgwarra, Nanquidno, Kenidjack, Bottalack Head and Pendeen. There was little to report of note, Chiffs were present at most places, we had a few Goldcrests, a Blackcap, six Jays at Polggiga was apparently notable, but for me the best birds were two Choughs at Kenidjack and a couple of Balearic Shearwaters past Pendeen. A Buff Tip caterpillar provided a bit of a distraction from the birding, and Clouded Yellows were recorded at most places.

Buff Tip Caterpillar - Kenidjack Valley

We ended the day with a visit to Ryan's Field at Hayle where two Little Stints, a Curlew Sandpiper, 100+ Dunlin and two Curlews were present. 

Another good birding area was Park Head, which we visited on the 3rd October. We walked from Porthcothan along the cliff, there were good numbers of Gannets feeding offshore, at least 40 Great Black-backed Gulls and 15 Oystercatchers roosting on one of the offshore islands. On shore there were at least 100 Meadow and 20 Rock Pipits, 50 Linnets, six Stonechats, two Wheaters and a Chiffchaff.

Northern Wheatear - Park Head

On our final day and the way home I decided to make a slight detour and call into Davidstow Airfield. I was hopeful that the overnight rain would have brought in a good yankee wader, but alas that was not to be. At least 20 Pied Wagtails were feeding over the grassland, along with a flock of around 35 Linnets and 15 Meadow Pipits.

Pied Wagtail - Davidstow Airfield

Common Ravens are regular at Davidstow, this time there were just the two, and half a dozen Northern Wheaters were still present.

Northern Wheatear - Davidstow Airfield

A mixed flock of large gulls was made up of mostly Lesser Black-backed, about 25 and five Herring Gulls. It is often quite easy to get close to the birds roosting on the airfield as it is possible to drive right up to them, as was the case with these birds. Two of the Lesser Black-backs were ringed, one with just a metal ring, that I couldn't read, and the other a black darvic ring, with white numbers and letters on it.

Adult Winter Lesser Black-backed Gull - Davidstow Airfield

The darvic ringed bird was an adult and having carried out a bit of research it appears likely that it is a bird ringed by Paul Veron on the Channel Islands. I will let you know when I find out the details.

Adult Winter Lesser Black-backed Gull - Davidstow Airfield

Tuesday, 23 September 2014

The Latest Update from Titchfield Haven - September 2014

Last weekend, the bird ringing was fairly average with 82 birds ringed on each day. 

Saturday 20th - today was our third and final public ringing event of the year, but unfortunately the visitors were greeted to a foggy and damp morning. The damp conditions meant that dew droplets kept hanging on the nets making them very visible to birds. It was a slow start but eventually we caught 47 Blackcaps, 11 Sedge Warblers, eight Chiffchaffs, seven Reed Warblers, three Robins, two Song Thrush and single Willow Warbler and Common Whitethroat. The only notable species was a Magpie, not rare but the first we have ringed  this year.


Wryneck - Hook with Warsash

After ringing news came through of a Wryneck on the beach at Hook with Warsash Nature Reserve. Since that was on the way home, well sort of, I took a slight detour to see it. Initially, it wasn't on view, but after a wait of about 15 minutes it appeared and showed relatively well.


Male Reed Bunting

Sunday 21st - today was a much more promising start, a clear overnight sky and no wind. It was again a slow start but things soon got going, our total included 30 Chiffchaffs, 27 Blackcaps, 11 Sedge Warblers, five Reed Warblers, three Cetti's and single Whitethroat, Willow Warbler, Grasshopper Warbler and Reed Bunting.
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