Wednesday, 31 July 2024

RSPB Snettisham :: 27 July 2024

I so wanted to go for the spotted sandpiper at Cheddar Reservoir and many of my friends had managed to do so over the last couple of days, but at work there were things to do and no opportunity to drop out. I am desperate to connect with one as I missed the individual at Upton Warren a couple of years ago - this error of judgement comes up from time-to-time.

On Friday night I discussed birding options for the following day with Kev @kev07713 and he said that the traffic had been horrendous when he'd visited that day and that he would skip a return for seconds on this occasion (he had been on the road for 10 hours but only with the bird for 1½) - in any case, given the disturbance from birders getting closer and closer and eventually flushing the bird, he expected it to depart overnight in clear conditions (in fact it did depart and so it was a great call to do something else).

The obvious next choice was RSPB Snettisham offering an array of waders; another good reason for visiting there was to meet up with Kev's sister Karen @hobbylovinglife and her partner Dean @worlebirder who planned to do the same.

I picked Kev, Karen and Dean up from Kev's house at 05.00am, Karen and Dean having travelled up to Banbury in the early hours from Gloucestershire. We didn't have to get there too early as it is best to plan visits around high tide for the best chance to see large flocks. High tide would be 11.10am but we needed a couple of hours before to hopefully catch the semipalmated sandpiper as the tide came in, and before the birds were flushed onto the freshmarsh lagoons and up the coast.

We stopped in Kings Lynn for a leisurely breakfast and as we were finishing up Alan Boddington @alanbodd sat down at the table beside us - we had a good natter. Eventually we all set off heading for the Snettisham with a report on BirdGuides that the semipalmated sandpiper had been located.

Arriving in the car park we set out seeing ducks and gulls on one of the lagoons, with a dozen or so Egyptian geese. We moved quickly but listened out as we hoped to connect with the turtle doves this site is known for.

Egyptian goose

Turtle Doves prefer open woodlands, hedgerows, and areas with scattered trees and bushes. They are often found in farmlands, gardens, and scrublands; primarily feed on seeds, particularly those of arable weeds and cereals. They forage on the ground and are often seen feeding in fields and along field margins. They are summer visitors to the UK, arriving in late April to May and departing by September. During this period, they can be seen and heard here at Snettisham.

Their distinctive purring call can help locate them in dense vegetation, hedgerows and field edges where they may be feeding or perching.

Onto the sea wall we could see a congregation of birders a couple of hundred metres ahead - we stopped with a birder looking through his scope, finding that he was on a turtle dove. It wasn't calling but was perched atop a line of bushes at some distance - it would be the only one we'd see. The most recent estimates suggest that there are fewer than 2,000 breeding pairs of turtle doves remaining in the UK. This number represents a drastic decline from previous decades, so is a special encounter. Regardless, we had a date with the semi-p sandpiper and so pushed on.

Turtle dove

The semipalmated sandpiper is a small shorebird native to North America and a rare vagrant to the UK with only sporadic sightings, usually involving single birds. They undertake long migratory journeys from their breeding grounds in the Arctic to their wintering grounds in South America. Most UK records occur during migration periods, particularly in August to October.

In breeding plumage, they have a mottled brown back, white underparts, and a distinctive black centre stripe on their crown. In non-breeding plumage, they are more uniformly greyish-brown above and white below. The name "semipalmated" refers to the partial webbing between their toes, which can be a helpful identification feature.

We joined the birders already in place and they put us on the bird - we had views through the scopes, but the distance made it tricky to capture anything but a dodgy record shot; it didn't help that I'd left the camera on full frame which made it even harder to pick out the bird. This was a lifer for Karen, and she excelled with her photos (here) which were much more detailed than mine - the extra reach with her bridge camera. There was no chance we’d be able to see the webbing on the feet.

Semipalmated sandpiper
Semipalmated sandpiper

We watched the bird for a while, but it didn't seem to be making any effort to close the gap to us. Numbers of little terns, a couple of Mediterranean gulls, and sandwich terns flew through with significant numbers of godwits, knot, dunlin amongst others feeding on the mud. Suddenly there was an eruption of waders into the sky, and we followed them as they swirled around - the reason for the agitation soon became clear as two Arctic skuas appeared, one of each of the colour morphs: a dark morph (uniformly dark brown) and a light morph (paler underparts with a dark cap and back).

The Arctic skua is a medium-sized seabird with a sleek, dark body and pointed wings. They are notorious for their piratical behaviour, often chasing and harassing other seabirds to steal their food, a behaviour known as kleptoparasitism. They are agile fliers and are often seen engaging in spectacular aerial chases.

Arctic skuas breed on coastal moorlands and islands in the UK, particularly in Scotland, including the Shetland and Orkney Islands, and occasionally in northern mainland Scotland. After the breeding season, they migrate to the southern hemisphere, wintering at sea in the subtropical and tropical oceans. The UK population is relatively small and has been declining with an estimated 1,200 to 1,500 breeding pairs, varying annually based on breeding success and environmental conditions.

In Norfolk they are typically seen during their migration rather than as breeding residents. They flew straight through.

Knot dunlin godwit
Arctic skua
Arctic skua
Arctic skua
Arctic skua
Arctic skua

We were able to pick out a few little stints and the same number of curlew sandpipers. The curlew sandpiper is another notable bird species that can be observed at Snettisham. In breeding plumage, it has rich chestnut-red underparts and mottled grey and brown upperparts. In non-breeding plumage it is pale grey above and white below, with a white rump and supercilium (eyebrow line). It is also a long-distance migrant, breeding in the Arctic and wintering in Africa, Asia, and Australia. They are typically seen in the UK during their migration periods. High tide is an optimal time to see them as they gather with the other waders at roosting sites.

The tide was advancing and some of the waders were getting closer - we'd all lost the semipalmated sandpiper.

Curlew sandpiper
Curlew sandpiper

The tide was flushing many of the knot, godwits, dunlin, oystercatchers and others from the bay, many flying over us and into the freshmarsh lagoon behind - a great spectacle. We decided to walk along to a hide where you could watch the assembled waders congregating on small islands. Spotted redshanks hung out with some cormorants. A Mediterranean gull and several sandwich terns roosted with assorted gulls on the island directly in front.

Mediterranean gull
Sandwich tern

There was an update from South Screen that a white-rumped sandpiper had been found and so we quickly set off and found the hide already full of birders, packed in like sardines. Fortunately, we are all slim (haha), and soon all four of us had managed to squeeze in and had eyes on the bird. Initially it was asleep, popping its head out sporadically - eventually a tern dropped in beside moving it right and giving us a better view - even a wing-stretch.

The white-rumped sandpiper is a small shorebird from North America that occasionally appears as a rare but regular vagrant in the UK. In breeding plumage, it has a greyish-brown back with black streaks, a white rump (hence the name), and a distinctive white stripe over the eye. In non-breeding plumage, it is more uniformly greyish with less distinct markings. The white rump, usually visible in flight, is a key distinguishing feature. It also has a relatively long primary projection beyond the tail, giving it a pointed-winged appearance.

White-rumped sandpiper
White-rumped sandpiper
White-rumped sandpiper
White-rumped sandpiper
White-rumped sandpiper

The white-rumped sandpiper was roosting with numbers of dunlin and knot; a spoonbill and domestic white goose were on the slope behind.

Red knots are migratory birds, passing through the UK during their journeys between their Arctic breeding grounds and wintering areas in West Africa; some also spend the winter in the UK. In breeding plumage, they have striking reddish-orange underparts and mottled gray and brown upperparts. In non-breeding plumage, they are more uniformly grey above and white below. They are known for their spectacular flocks, often seen in large numbers, especially during high tide roosts at Snettisham.

The best time to observe them is during high tide when they gather in large flocks on the mudflats and beaches; the sight of thousands of birds in flight is a remarkable spectacle.

Knot dunlin

We spotted another curlew sandpiper in the flock and continued scanning to see if we could add anything else, but then retired to the sea wall and a couple of benches for a coffee and lunch break.

Waders
Waders

While we still scanned the birds, picking out another little stint, we worked our way back along the sea wall and towards the car. We stopped on several occasions still daunted by the number of birds in view - I have never seen so many little terns in one place, Adrian Borley @AdrianBorley reporting a personal count of a minimum 357 a couple of days later ...

Little tern appear to have had a successful breeding season in Norfolk, particularly at Snettisham. Snettisham is part of the Wash, a large estuarine system that is crucial for many bird species. The successful breeding of little terns here highlights the importance of maintaining and protecting such habitats. This success is significant given the challenges faced by this species.

Reports indicate an increase in the number of nesting pairs at Snettisham with measures leading to a higher survival rate of chicks. Despite the successful season, little terns continue to face threats such as habitat loss, climate change, and disturbance; continued efforts are still needed.

Little tern

We had a great visit, but everyone was starting to feel weary and we elected to stop at the cafe at the entrance to the reserve for a drink and freshen up before the journey home - never stopped there before and well worth remembering it is there.

Year list: 224.

Tuesday, 23 July 2024

Normandy Marsh & Longslade View, Brockenhurst :: 20 July 2024

Friday conversation was short - Kev @kev07713 said there was nothing that we had to go and see locally and so suggested a trip down to Normandy Marsh, Hampshire for a breeding pair of roseate terns. I snapped at the chance as I'd missed the chance to holiday in the northeast a few weeks earlier and see these wonderful birds.

Roseate terns nesting in Hampshire, marks a rare instance of this species attempting to breed on the south coast of England. One of Britain's rarest and most localised breeding species, roseate terns are typically found nesting almost exclusively on Coquet Island in Northumberland. However, a notable exception has occurred this year, with a pair settling in a tern colony at Normandy Lagoon, a saltmarsh on the Hampshire coast.

First reported here on May 14, the presence of this rare pair initially prompted the Hampshire Ornithological Society (HOS) to minimise publicity to protect the birds. As the roseate tern is rarely seen breeding away from Northumberland (or Ireland), volunteers have been constantly monitoring the nest to prevent disturbances during the brooding of the eggs - a dedicated team of HOS volunteers have conducted 24-hour monitoring using thermal-imaging cameras.

The roseate tern closely resembles the common tern in many ways, including size, but can be distinguished by its black bill with a red base, whereas the common tern has a red bill with a black tip. They derive their name from the subtle, rosy flush that tinges their summer plumage, although this colouration is often much fainter in reality than it appears in photographs, making it challenging to spot. Not having ever seen one it might prove even more challenging for me.

So after a spot of breakfast on the way we parked up and made it round to the sea wall, joining a handful of birders already in place, one of whom we know from previous trips to the south coast - Jeremy Mcclements @jeremymcclemen1. My hopes were dented when we were informed that the birds had already departed out onto the Solent - both juveniles were now flying and not in view. Apparently, it would have been better to come on Wednesday …

While we waited, the colony of little terns entertained us in the lagoon behind, including some of this year's fledglings. In addition to the usual hover and diving technique, they chased around the lagoon and out onto the Solent to fish. They were closer in that when I visited back on 23 April to see the marsh sandpiper - report here. They thrive at this site, consistently delighting all who come to see them.

Little tern
Little tern
Little tern
Little tern
Little tern
Little tern

A shout went up from a chap to our left as he stumbled upon one of the juveniles on a low grassy island about 150m offshore. There were good scope views. Then a second juvenile was spotted not far from the first, but more obscured from view. In a short time, the first bird took to the wing, circled back and joined the second. At this distance there were only ever going to be record shots.

Roseate tern
Roseate tern
Roseate tern
Roseate tern
Roseate tern

I had my tick but somehow not seeing an adult bird seemed to take some of the shine off - the group all watched out for any returning adults, visiting to feed the juveniles. We waited and checked out many passing common terns, and the occasional sandwich tern.

Behind us a pair of ringed plovers dropped in, a dunlin sat alone - 'Billy no mates' - avocets fed back on our left, a linnet watched us from a fence, and a black-tailed godwit stalked the water's edge.

Black-tailed godwit
Linnet

Hours passed by, no one called any of the adults returning, and it was suspected they were likely visiting but just dropping food to the juveniles as they passed through. I watched as a tern, likely common, flew over the island carrying a fish. I snapped a couple of photos for something to do and then noticed a juvenile joining it. From the photos I could see that the juvenile looked to be one of our roseates, and then noted that the adult bird had a longer black beak and a red base. I checked with knowledgeable friends who confirmed I'd seen an adult - unfortunately after the event - I feel bad now for now calling it, although never having seen one I really wasn't sure. When sea watching I've been told to call everything and not worry about being wrong - better to get everyone on it and check - why I didn't this time I don't know.

Roseate tern
Roseate tern
Roseate tern
Roseate tern
Roseate tern
Roseate tern

We'd been here for almost three hours but had bagged my target bird. Over on the opposite shore half a dozen powerboats passed by, making quite a racket, and presumably creating quite a wake. The United Kingdom Offshore Power Boat Racing Association (UKOPRA) were running the Solent 80 powerboat race, featuring approximately 25 powerboats with competitors expected to be travelling at speeds exceeding 50 knots. The course would began at the Roway Wreck beacon, proceeded to the Pullar buoy, and then circumnavigate the Isle of Wight. Key turning points included St Catherine’s Point, Bridge buoy, North Head, and several other buoys in the Western Solent and its approaches. The race was set to finish near a special mark 3G Cowes Week 2026, located south of the Beaulieu River entrance by 2.00pm.

Powerboat
Powerboat
Powerboat

We returned to the car and noted that the restaurant at the Yacht Haven was full and decided to make our way home but keep our eyes open for a heath we could stop and look around. By Sandy Down, just south of Brockenhurst we could see extensive heathland to the west and drove through to find somewhere to stop - we came across a car park at Longslade View. This is likely the smallest of the car parks overlooking this valley and is accessed via a long, straight track that is heavily potholed; no problem for Kev's car ...

We parked and followed a track that ran parallel to the road we'd come in on, seeing a stonechat at the far end of the car park - lost by the time we set off. Initially we could neither see nor hear any birds but eventually numbers of meadow pipits appeared, along with a handful of skylarks.

We spotted large numbers of small blue butterflies which turned out to be silver-studded blues. These butterflies are a striking and rare species found in specific habitats across the UK and whose presence is an indicator of healthy heathland and grassland ecosystems. They are small, with a wingspan of about 25-31mm, the males have bright blue upper wings with a narrow black border while the females have brown upper wings with orange spots along the edge. Both sexes have a characteristic row of metallic silver-blue spots (studs) on the underside of their hindwings.

They thrive in heathland, calcareous grasslands, and coastal dunes. They are most commonly found in southern England, particularly in Dorset, Surrey, Devon, and here in Hampshire. Smaller populations exist in East Anglia, North Wales, and the Sefton Coast in Merseyside. Adults are usually on the wing from late June to early August.

They often live in small, localised colonies that can be quite isolated from each other - some populations have shown signs of recovery due to dedicated conservation efforts, but the species remains vulnerable and reliant on continued habitat management.

Silver-studded blue butterfly
Silver-studded blue butterfly
Silver-studded blue butterfly

We pushed on, hoping to come across a Dartford warbler, this appearing to be great habitat for them. We continued to see meadow pipits but could see or hear a Dartford. Ahead we spotted a handful of fallow deer who appeared very curious about our presence - they were soon gone.

Fallow deer

Kev asked what to do next and I suggested walking on just a bit further to the spot the fallow deer had been, and where I thought you'd be able to look down over the valley. We stopped there with our drinks and watched as a pair of stonechats moved around the gorse bushes.

Stonechat
Stonechat

After five or ten minutes a female kestrel flew up and away, and as I scanned the nearby gorse, I picked out a juvenile Dartford warbler working through. It flew left and we watched for it to reappear, but we were then presented with an adult bird. It remained heavily obscured in the bushes, but we could follow it some of the time, eventually dropping from view. How many times to you pass habitat that you say looks ideal for Dartfords and you wonder if they are actually there? - this was one of those.

Dartford warbler

We heard a Dartford call and tried to pick it out, at further distance back from our position. The rain started to fall, and we then got onto the bird, stopping long enough for another record shot and view. We started back for the car and the rain stopped as we got halfway - we didn't add anything of note. A cracking day out with a lifer to boot.

Dartford warbler

Year list: 220