2015 Review and Highlights

2015 was the Big Bird Year for Grimsbury Reservoir promoted by Banbury Ornithological Society. This was one of the main reasons I finally got around to starting this blog. With increased promotion and more people visiting the reservoir we managed to record an outstanding 126 species over the year at Grimsbury Reservoir, the Woodland Nature Reserve and Upper Cherwell Valley (U.C.V.). I set an unofficial target of 120 species at the start of the year and when this was reached I raised the bar again and rather optimistically went for 130. With a few more ‘easy’ species that were not recorded this year it may have been possible. However, let’s not dwell on what wasn’t seen but marvel at what was, including several species not recorded here ever before or not for many years. Thank you to everyone who contributed with records and photographs. Any records submitted to me directly also went to the B.O.S. but if you do have any others outstanding, please do submit them to the B.O.S. as all records are important.

Courtesy and copyright of Roger Wyatt

The year started with some excitement, as on the last day of 2014, a probable Siberian Chiffchaff was found in the Grimsbsury Woodland NR. This, along with the continued presence of the Willow Tit, attracted many observers and although it is a hard subspecies to confirm with complete certainty many observers were satisfied it was a Siberian Chiffchaff. The Willow Tit was present up to the start of May and was observed singing on several occasions but then was not seen through the summer. Breeding in the area was unconfirmed again and a single bird reappeared in September, with two birds being seen sporadically till the end of the year. Up to three Common Chiffchaffs were also present in the early winter period and one in the late winter period.

Courtesy and copyright of Dave Fuller

Courtesy and copyright of Derek Lane

Goosanders continued to be attracted to the reservoir in the early and late winter periods with a maximum of six in each period. Although, there was a lot of movement of these birds and in December up to three drakes and five redheads were recorded over the month. Other more unusual wildfowl recorded included Shelducks on two occasions, a Red-crested Pochard, a Mandarin, a Goldeneye and small numbers of Wigeon and Teal. A Brent Goose was recorded in December and is rare enough that it was one of the best birds of the year.

Shelduck and Brent Goose courtesy and copyright of John Friendship-Taylor
Common Pochard courtesy and copyright of Derek Hales

Waders were well recorded this year with Common Sandpiper (peak of six) being the commonest but Little Ringed Plover recorded relatively frequently and Dunlin recorded several times, including twice in December. Some scarcer waders were two Redshanks, a few Oystercatchers, Greenshank, Green Sandpiper and a Black-tailed Godwit that stayed in the area for some time but only roosted at the reservoir. A Sanderling bought in during the autumn storms is a great record and is in my opinion the best bird recorded in 2015.

Little Ringed Plover, Oystercatcher and Black-tailed Godwit courtesy and copyright of JFT

It was a great year for gulls and, although increased effort definitely aided in more records, there were some really good sightings. The only record of Great Black-backed Gull was of three flying over in January, Kittiwake was recorded twice in March, a juvenile Little Gull in August, two Mediterranean Gulls (Aug and Nov) and many Yellow-legged Gulls between August and October (including up to 6 on a few occasions). We also had fun reading colour-ringed Black-headed Gulls tracing some back to Lithuania, Denmark and Germany.

Kittiwake courtesy and copyright of JFT

An Osprey seen migrating over in August was a case of perfect timing for two lucky observers. A Nuthatch recorded in July was a generally common species that is very rarely recorded here and a Ring-necked Parakeet was recorded infrequently from July to October was the first for the site. A Little Tern made a very brief appearance in May and Black Terns were recorded twice (one group of five). Other very notable sightings were Arctic Tern, Stonechat, Water Rail, Hobby, and Little Egret. The autumn period was really productive for Redstarts and Spotted Flycatchers and we even had another Black Redstart in November. Siskins started migrating back through in July and after being almost completely missing last winter were present through to the end of the year with infrequent sightings of Lesser Redpoll.

Courtesy and copyright of Jason Coppock. Please view at 720p HD 

In the U.C.V. there were some fantastic records. The most notable of these was a Wood Sandpiper at the new Borrow Pit pool in July. A Marsh Harrier was recorded going over on migration in July. Up to three Whinchats were present from July through to September. Two Tree Pipits stayed two days in August. Two Shelduck were record and were assumed to be the same ones as at the reservoir. Barn Owl was recorded a few times in the early winter period and Stonechats were present again in the late winter period. Some good numbers of Lapwing and Golden Plover were recorded (mostly flying over) in the late winter period too. 

Courtesy and copyright of JFT

Otters were seen by three different observers on three different occasions. Although signs of them being present in the area are common, to actually see them and to see them well enough to get photographs is almost unbelievable.

First picture courtesy and copyright of Colin Wilkinson

Another species that caused a stir was White-legged Damselfly. I don’t think this species has been recorded here before and is generally rare in Oxfordshire so several people were keen to come and see them.

Thank you again to everyone for contributing with sightings and photographs, it is very much appreciated.

31st Dec 2015

I had my last walk around for the year this morning starting at dawn, with John joining me a little later. It was a little chilly to start with but as the sun came out it turned into a very pleasant morning. 

There were six Goosanders (1 drake) to start with, but this soon reduced to four as two of the redheads had left before John got there. There was also eleven Great Crested Grebes this morning, which is a good count for here. 

The wood was busy this morning with lots of activity from the roving tit flocks and associated species. I got incredible views of the Long-tailed Tits within a couple of metres but failed to get decent pictures. Several Siskins and a few Bullfinches were also busy feeding in the wood. The Chiffchaff was around again today calling from the scrub just north of the railway bridge. A Sparrowhawk made a couple of appearances out the back of the wood too, one time coming up from the riverside.

The valley was rather quiet really and for several days now there has been nothing but gulls on the Borrow Pit pool. There were at least two Herring Gulls around today with the Black-headed and several Common Gulls. A few Meadow Pipits flushed from the wet grass.

29th Dec 2015

I was out early today, not quite first light but before sunrise. The dawn chorus is really building now, with Song Thrushes putting in the most effort but as the sun came out more and more birds were singing. If I had been asked yesterday how many Song Thrush were around I would probably have said around six, but this morning proved that wrong with at least double that singing.

To start with there was not a lot around at the reservoir, with the only birds of note being seen on my way back to the car park. Two redhead Goosanders had arrived and a Chiffchaff was calling along the river. In the wood there was a few small flocks of tits and the usual entourage here and there but it was generally quiet.

Under the railway bridge there were two fresh Otter spraints, which were definitely not there last night, so there is an Otter or two quite active in the area again. In the Upper Cherwell Valley there was a Yellowhammer and a Skylark that were slightly different from the norm. The Skylark actually giving a brief burst of song too. A single Lapwing flew over and there were several large gulls moving around.

Courtesy and copyright of Dave Fuller

28th Dec 2015

This afternoon I met John for another good walk and search for birds. Things really are getting desperate for the end of the year!

We didn't see much at all. There was at least seven Siskins along the river that provided some entertainment for a short while. A single redhead Goosander was on the reservoir but that had gone before we left. A single Herring Gull (assuming it was the same one) flew over several times but there was few other large gulls around. The roost was tiny too, possibly only a maximum of 200 Black-headed Gulls and a single Common Gull.

We did find a very fresh Otter spraint under the railway bridge and saw two Roe Deer though, so it was all doom and gloom...

Courtesy and copyright of John

27th Dec 2014

John and I had a good walk around the patch this morning. The walk, unfortunately, matched the weather and was rather dull and we got soaked through for little reward. To be honest other than three redhead Goosanders at the reservoir and at least ten Meadow Pipits in the Upper Cherwell Valley there was really nothing of note.

24th Dec 2015

I was out for a late afternoon visit today. I met Mark in the car park and we walked and talked and had a catch up.

There were four Goosanders today (1 drake) and a few gulls gathering but not much else. We went through to the back of the wood to listen for Willow Tits, but they were not apparent. A Kingfisher did shoot across the river and a Roe Deer skulked around the far bank, but it was also quite quiet here.

I continued up the Upper Cherwell Valley to see what was around, surprised by how light it was. A couple of Snipe flew around and a Pheasant flushed from by the river, but there were none of the owls or woodcock I was really hoping for. The moon was putting on a fantastic show though.

Happy Christmas everyone, I hope it's a good one!

23rd Dec 2014

It was quite a busy day at Grimsbury for observers, with Mike Pollard, Steve Holliday, Alan Peters, John and I all trudging the paths in search of birds. Collectively there were quite a few birds seen but nothing to really get excited about. Being out in the sun is always a pleasure though.

At the reservoir the two redhead Goosanders were present, along with seven Great Crested Grebes, a Kingfisher and c.45 Black-headed Gulls. Two Bullfinches were around and three Treecreepers were seen together in the wood. Siskins were heard and seen in a few places but numbers seem to be fluctuating quite a lot at the moment. In the Upper Cherwell Valley Mike had five Herring Gulls and a few Lesser Black-backed Gulls. Mike also had c.20 Lapwings flying over and later John and I had another c.100 over. This is the most we have ever seen here and I wonder if these are 'local' birds we are seeing or birds that are still on migration. Raptors were well represented today with Kestrel, Buzzards, Sparrowhawk seen a few times and a Peregrine flyover.

Courtesy and copyright of John

22nd Dec 2015

John spent his lunch at Grimsbury today, again searching every corner for another elusive year tick. There were two redhead Goosanders on the reservoir and another ringed Black-headed Gull. This one had a white ring with the alpha/numeric combination of AF939. John has emailed the scheme coordinator for exact details, but it seems this bird was ringed in Germany in the same scheme as another bird we had earlier in the year (AF400).

Courtesy and copyright of John

There was not a lot else to report unfortunately. We will still try everything to attempt to get to 130 species though, we live in hope!

21st Dec 2015

Steve Holliday and John visited today.  Between them they managed to see two redhead Goosanders, a female Tufted Duck, five Great Crested Grebes, five adult Common Gulls, eight Lesser Black-backed Gulls and a Grey Wagtail. There was also two Siskins in the wood.

20th Dec 2015

I was out with a good friend today, Allan Jones. He hasn't been out to Grimsbury few a few months at least. He must be a good omen as we had quite a good day, either that or the good weather meant there were more birds around.

Virtually as soon as we got to the reservoir a Red Kite drifted over and departed to the south west. As it went over it put most of the gulls up and later the sailing boats ensured the rest disappeared. Soon after the Red Kite had gone a flock of 19 Lapwings flew over and we saw the three Goosanders near the northern end of the reservoir.

Two Kingfishers were active along the river and one perched up and showed really well in the sunlight. An Otter spraint was under the railway bridge, which was new since yesterday and shows they are still quite active in the area. There was no sign of the Willow Tits today but there was a Chiffchaff calling near the river.

In the wood we saw at least six Siskins and heard at least one Lesser Redpoll, but all were flighty and and we weren't sure of exact numbers. Searching for the Willow Tits again a flock of around 300 Golden Plover wheeled around above us. I assume they had been flushed from one of the nearby fields and were searching for somewhere else to settle.

Oxfordshire birders Ian Smith and Ben Carpenter visited today too, in search of Willow Tits. Unfortunately they didn't see them but they did see the Danish ringed Black-headed Gull, VK40. Ian emailed the ringer and so we now have details for this bird. It was ringed as a pullus in 2011 on the Hirsholm island. It has only been recorded three times since, all at Grimsbury and it seems to be settled in the area for the winter.

19th Dec 2015

John and I met up today to have a good look around. Of course we were desperately trying to find something new for the year, but that didn't happen. Despite that there were a few notable sightings.

To start with on the reservoir, there were two redhead Goosanders and a drake Tufted Duck. A third drake Goosander had arrived as well before we left.

In the Upper Cherwell Valley we found the two Willow Tits in the scrub just north of the wood, near to where the two parts of the river join back together. Further north there were at least six Meadow Pipits around the banks of the flood alleviation scheme. On our way around we noted how few large gulls were around but we did see at least two Herring Gulls.

18th Dec 2015

Today John discovered the Goosander flock had grown by one again! There were five (3 drakes) present during his lunchtime walk. There was also a Willow Tit in with a large tit flock in the south east corner of the wood.

17th Dec 2015

John was out at lunchtime today and there were four Goosanders (3 drakes) but not a lot else to report.

Courtesy and copyright of John

16th Dec 2015

John and I managed a quick walk around at lunchtime today. There was not a lot around but there was the three Goosanders still. I carried on to have a quick look around half of the wood, but it was dreadfully quiet. There was some fresh Otter spraint under the railway bridge though.

15th Dec 2015

There were three Goosanders (2 drakes) at the reservoir today when John was out for his lunchtime walk. I'm not sure where these birds are travelling to back and forth but it seems likely they are the same birds that go to Boddington Reservoir.

14th Dec 2015

At lunchtime today John had a Dunlin. Another one in December, is really really unusual for Grimsbury!

Courtesy and copyright of John Friendship-Taylor

11th Dec 2015

Well, it would be fair to say this has been a quiet week. John has been out a few times but there has been nothing of note at all.

Mark was out at lunch time today and had a drake Goosander but it was gone by early afternoon. There was also at least six Siskins around.

Courtesy and copyright of Mark Ribbons

Later in the afternoon I had a quick walk around. There were still Siskins along the river and I heard a Lesser Redpoll but didn't see it. Under the railway bridge there was a fairly fresh Otter spraint. There was a reasonable number of Black-headed Gulls building up to roost too with a few each of Lesser Black-backed and Common Gulls.

06th Dec 2015

I was out for a good walk around today, but there was not a lot to get excited about. There was a lot of gulls flying over and gathering on the reservoir, so it was back to scouring through them for anything decent. At the peak there was up to 40 Commons, 20 Lesser Black-backs and the ubiquitous Black-headed Gulls. There was at least a couple of adult Herring Gulls that came through. There was also another one at the Borrow Pit pool with a second winter bird.

Other highlights were a Raven over that had a little tussle with a Crow as it passed, a Kingfisher that zipped through along the river, a handful of Siskins around the river and in the wood and four Little Grebes at the Borrow Pit pool.

Mark was out at the reservoir at dusk and there was a redhead Goosander present.

04th Dec 2015

John visited late morning today and I had a quick look around late afternoon. There was no sign of the Brent Goose today, unfortunately. John had a Raven fly over north and a Chiffchaff calling from the hedge through the cattle fields. There was not a lot else around today though.

03rd Dec 2015: Brent Goose!

John had visited the reservoir at lunchtime yesterday, but there was nothing much to report. Today was a very different story though. It really highlights the fact that an interesting bird could turn up at any time 'out of the blue'.

The outstanding highlight of today was a juvenile Dark-bellied Brent Goose that had decided to join the Canada Geese. It was first on the reservoir and then moved with the Canada Geese to feed in the cattle field. The only other records of Brent Geese here that I know of are of eight flying over in December 1987 and one being present in January 1988. So this is a rare bird here. When I saw it it appeared to be hobbling and may have an injured leg. This won't stop it from leaving but may encourage it to stay around for a short while.

Photos courtesy and copyright of John Friendship-Taylor

The next bit of quality was a Dunlin that John heard calling as it flew in. It settled briefly at the reservoir before heading off high to the east. It is quite unusual to have one at this time of year as they are usually seen here in spring or autumn passage. There was also a Peregrine that flew over north.

01st Dec 2015

The last few days of November were very quiet and as a result there were no blog posts. This morning was still fairly quiet but there was enough to spur me on to do a blog post.

The highlight of the morning walk was two Willow Tits. These were in the scrub along the river just to the north of the wood. With no sightings for a few weeks it was good to see they were still here, although I didn't manage any good photos.

Otherwise, there was a Tufted Duck on the reservoir and a few Siskins over. It was amazing to see the Wood Pigeons leaving the roost in the wood. They come streaming out by the hundreds and then you realise they all managed to find a space in there to roost in the first place.

As I left a large grey mantled gull flew through south. I didn't see enough of it to confirm the identity so it will go unidentified unless anyone wants to have a crack at it.. it appears to have a slight band on P5 but has quite thick wedge of black on the primaries...

27th Nov 2015

John was out at lunch time today and had a pair of Peregrines flying high over the reservoir. Other than that a Lesser Redpoll was the only other notable bird.

26th Nov 2015: Goldeneye

As I walked up the path along the embankment to get a view over the water, one of the first things I saw was a medium sized white bird out in the centre. A quick look through the binoculars revealed a drake Goosander. As I scanned across I realised that there was actually two drakes and a third redhead had joined the existing two redheads. Scanning further up I could see two smaller diving ducks, a Tufted Duck and a Goldeneye. Goldeneye is just about an annual bird here and is a new one for the year list.

I had a look around the wood and up in the valley too, but there wasn't much more of interest. the best bits being a flock of c.30 finches, mostly Goldfinch and some Siskins, and four Little Grebes on the Borrow Pit pool.

Walking back down past the reservoir a third drake Goosander flew in to join the others. Six is the highest number I have seen here I think, matching the biggest total from earlier this year.

25th Nov 2015

John visited at lunch time today and the two Goosanders are still present. A Kingfisher also showed very well by the pontoons and a Lesser Redpoll flew over again.

Courtesy and copyright of John Friendship-Taylor

24th Nov 2015

The two Goosanders found yesterday were still present this morning. they were loafing on the embankment and were later seen fishing by the pontoon.

They was not a lot else of note seen but a Lesser Redpoll flew over and a small flock of Siskins were along the river.

23rd Nov 2015

John visited the reservoir during his lunch break today and had a good few birds, the highlight being two redhead Goosanders. It would be really nice if some stay around in the area again this winter.

Courtesy and copyright of John Friendship-Taylor

There was also a Lesser Redpoll that flew over and the ringed Black-headed Gull from Denmark (VK40) that was first seen a few weeks ago.

Courtesy and copyright of JFT

21st Nov 2015

I was out twice today with high optimism that something of interest would be around. It was a cold day and very windy to start with, but pleasant. Unfortunately the birding was not what I was anticipating, though I'm sure we are due something good again soon.

A Greylag Goose was in with the Canada Geese at the reservoir and several Siskins were buzzing around the tree tops. The wood, where I thought there would be birds sheltering from the wind, was actually very quiet.

Up in the river valley there was a few bits of interest. A Snipe flushed from the wet scrape near the Borrow Pit pool, a Stonechat was in the scrubby area by the river and two small flocks of Lapwings flew over (seven and eighteen). Little groups of thrushes and Wood Pigeons were on the move but no big flocks. A Lesser Redpoll was still in the area and there were 26 Cormorants roosting in the trees late afternoon.

19th Nov 2015

A quick look around this morning and it was very quiet. The Little Egret flew over the reservoir towards Spiceball Park, but other than that there were actually very few birds around.

I'm beginning to think we might struggle to get to 130 bird species now, with fewer and fewer possible species to see and less time to see them. Any records of birds, especially new species, are still very welcome.

18th Nov 2015

Another fairly standard day today but a few bits of interest. I was hoping for something to have been blown in by the strong winds but nothing that exciting happened. On the walk up to the reservoir there was a large post roost gathering of Black-headed Gulls that steadily flew off to the west. There were 17 Cormorants fishing this morning, mostly as one big group diving and working together. I watched them for a little while and on most dives resulted in a positive catch for each bird.

At the back of the wood the Little Egret was flying over the river and appeared to settle round the corner and behind the trees. A Lesser Redpoll was in the area again but I only saw it in flight today. Further up at the Borrow Pit pool there were three Little Grebes and a family party of Mute Swans. I assumed it was the same group as before but there were six juveniles, so it is either another group or they have adopted one from somewhere else...

16th Nov 2016

I went out for a walk pre-work this morning and was rewarded with a good bird as soon as I got out of the car. Out of the corner of my eye I saw a Little Egret fly into the river (Spiceball Park side) and disappear from view. I got boots on and went to find it but it had already moved on.

At the reservoir there was a gathering of c.70 Lesser Black-backed Gulls and a lone third calender year bird joined them later on. There was at least four Bullfinches along the river and a nice little group of 16 Siskins. There was also several Meadow Pipits around and a few fragmented groups of tits. A Kingfisher was at the reservoir and then flew up or down the river several times.

At the back of the wood, where the two parts of the River Cherwell merge together again, I found the egret. It must have flown back over when I wasn't looking. It flew up into a tree when it saw me and was almost instantly mobbed by a Sparrowhawk and then three crows. It sat there for a while before deciding it would be better off in some lower scrub. I then decided I should leave it in peace.

14th Nov 2015

It was a funny old day today and the weather forecast put me off going out too early. Unfortunately the weather forecast was quite wrong and the weather was much better than I had expected. So, it was mid morning before I got myself going to have a stroll around the patch.

There were not many highlights, I have to be honest. At one Lesser Redpoll was heard at the back of the woods and a Herring Gull was in the Upper Cherwell Valley. Otherwise it was pretty much business as usual.

12th and 13th Nov 2015

12th:

John was out yesterday morning for a look around. There wasn't a lot around, but he did see a ringed Black-headed Gull. Unfortunately it only had a metal ring and no details could be obtained. He also saw twelve Cormorants, so the numbers are definitely building as we head into winter.

13th:

I headed out twice today. This morning as I approached the reservoir a flock of seventeen Lapwing flew up, possibly from the reservoir but more likely from the cattle field. Other than that it was ridiculously quiet. The family group of Mute Swans dropped in, so it was nice to see they are still doing well.

This afternoon I went to look for gulls. There wasn't many around today. A few Common gulls was the highlight. There was the same, or possibly another, metal ringed Black-headed Gull too.

11th Nov 2015

A quick walk this morning before work was quite productive, but only for anyone interested in gulls and I have to admit I'm really getting the bug! The only other birds that caught my attention were several Meadow Pipits and a couple of Skylarks going over. There was also a few reasonably sized flocks of Wood Pigeons going over, each flock being  around a hundred birds.

To start with I scanned through the Black-headed Gulls looking for leg rings. I did spot one ring but it flushed before I could get the details. So I moved on to the Lesser Black-backs that were beginning to gather. There was at least seven Common Gulls with them, with a few birds coming and going. It wasn't long before and adult Yellow-legged Gull dropped in.

Next I spotted a third calender year bird amongst the group.

I had been looking at them for a while before I noticed the third, which is a second calender year bird. I took my time with this one to be sure of the identification (and I think I've got it right). It was often next to Lesser Black-backs of the same age for comparison. I managed to see all three close together before I left.

Mark Ribbons visited this afternoon and had a good haul of birds. The best of which was a Willow Tit in the wood by the railway bridge but there was also two Siskins, two Treecreepers, Kingfisher and a nice list of commoner species.

10th Nov 2015

John and I were both out this morning but despite our efforts and there being good numbers of birds around, there was little in terms of quality. As John summed it up in a message to me 'slim pickings'.

There was a few Meadow Pipits around, a couple of small groups of Siskins and a couple of Common Gulls at the reservoir. A couple of Coal Tits in the wood. so it wasn't until I'd got to the Upper Cherwell Valley that I found anything of particular note.

There was the pair of Stonechats in the scrubby area by the river, which were close enough to photograph but I got my settings wrong for the dull light and were all a wasted effort. Three Little Grebes were on the Borrow Pit pool and a gathering of Lesser Black-backed Gulls loafing in the fields with three Herring Gulls amongst them. Whilst scanning through them a Snipe dropped into the vegetation by the river.

In the afternoon I went out to check the gull roost. despite large numbers of gulls there was only Black-headed and Lesser Black-backs as far as I could see. Of interest there were eight Yellow-legged Gulls and a Mediterranean Gull reported in the Boddington Reservoir roost today and I wonder how many of these birds are ones we have been seeing here.