Sunday 14th September saw me on site as usual following an excellent morning's 'vismig' at Potwells that included a flyover Woodlark!  A County rarity and one that I had hoped I'd catch up with this year.  The session also witnessed a noticeable increase in Meadow Pipit movement and this was in evidence at Stanborough too with in excess of 100 birds noted.

The usual Common and Green Sandpiper were on site and a flyover Raven too.  I commenced my usual scan from the track with my scope of the large weedy area adjacent to the main pit - a good way to pick up any migrant chats.  Sure enough, at least 4 Stonechats were on view along with a single Whinchat.

As one of the regular dog walkers approached I saw a little bird hop up onto a stem right at the back of the weedy area - about as far a way as it could be.  It cocked its tail up and I knew, without a doubt, that this was a DARTFORD WARBLER!  Immediately I was engaged in exchanging niceties with the walker while my mind began racing as I realised I needed to find this bird properly!

The walker moved on and I sent a couple of messages to Steve Pearce and Andrew Steele who I knew weren't far away saying that I thought I had a Dartford but I was going to have a look.  I quickly walked along the back edge of the weedy area at the field edge with ears and eyes peeled.  I reached the end with no joy and realised, in my haste, I hadn't really pinpointed where exactly I had seen the bird.  I decided to return to the track, wait for Steve, and in the meantime pin-down exactly where I had seen the bird.

Steve arrived and we both headed out along the edge of the weedy area again.  Reaching the end there was again not a squeak aside from the usual Reed Buntings, occasional Yellowhammer and Stonechats.  Steve decided to loop around the weedy area and as he completed his loop so the Dartford Warbler began scolding and hopped up on a stem about 20 yards in front of me!  Bingo!!

I quickly called Steve on his phone and he came over just in time to get fairly good views of the bird before it dropped back down into the thistles and weeds.  My second County Rarity in a day and a first for me, not just for my 5 Miles From Home List but also for my Herts List.  The Dartford Warbler was of course new for the site too taking the all-time total to a pleasing 160 species.

My first views were to prove some of my best and I managed a few hasty record shots (see the header photo) before it vanished.  Thereafter it became much harder to see, other than in brief flight views.  The following day, others were unable to locate it but I revisited on Tue 16th and was able to find it again moving along the back edge of the weedy area with a couple of Stonechats.  Again I was able to get a few record shots as it lurked in the undergrowth but never sat up.

Walking back to the car I noticed another little bird flying along, almost next to me but only about a foot off the ground.  I paused and eventually saw it in flight - a Grasshopper Warbler!  I waited while it rustled around in the grass just a few feet away from me and then watched it fly into the main clump of reeds in the wet area.  Another site year tick, taking the year total to 127!

​While I had been observing or (more truthfully) waiting for the Dartford Warbler to appear I had puzzled over hearing what appeared to be Dartford Warbler scolding from two different locations.  While the bird did move quickly through the undergrowth it nevertheless seemed odd.

Again, with no sighting by others the next day I returned on Thursday 18th Sep evening and quickly relocated the bird, except that this time my puzzlement was answered as not one but TWO Dartford Warblers flew up and across briefly, giving me just long enough to confirm my earlier suspicions.  While light also plays a part, I did think, looking at my record shots, that one bird might possibly be lighter and brighter in plumage that the other...maybe I had unknowingly photographed two separate birds?

I saw and heard a Dartford again on Sat 20th Sep along with Andrew Steele but it remains to be seen how long both birds remain on site.  While Dartfords are a possible candidate to over-winter at the site we are still in peak migration time so they may move on.  They will however, be remembered for the excitement they brought as a genuinely rare bird in the County.

Walking out along the weedy area also brought home what a fantastic (and really under-watched) area it is for small migrant birds.  On Sat at least 5 Chiffchaffs were feeding along the edge with at least 2 Whinchats and 4 Stonechats.  Two female-type Wheatears were also present with a third male seen in the morning too.  Meadow Pipits, Linnets and Yellow Wagtails are also dropping down into the grassy areas while passing Swallows, House and Sand Martins are making good use of the feeding opportunities.  Who knows what else may pop up?!

As a final note, a smart adult Yellow-legged Gull was by the deep pool on Sat afternoon but didn't stay long.

The first couple of weeks of April are almost done and I'd like to report some amazing sightings but somehow this usually peak period has drifted by quietly.  A settled area of high pressure has brought beautifully clear days with a, at times, strong and chilly east wind.  Rain and cloud cover have been non-existent and it feels as if these missing ingredients have resulted in a lack of migrant birds.  Either birds are backing up waiting to arrive or are flying over, high in the clear skies, not needing to make the usual pitstops.  That said, a steady trickle of migrants has kept things interesting if not exciting.

Full of promise and headlining the period was a stunning male Blue-headed (Yellow) Wagtail of the European race flava.  Found at the pits on 27th March the bird hung around for a couple of days giving many people the chance to view and photograph it.  A perfect picture of Spring the bird suggested the start of something special but actually heralded a quiet few weeks!

While it feels the main influx of Spring migrants has yet to come, prior to the wagtail's arrival, there had been some movement with some expected arrivals in the from of Sand Martins and Swallows​ on 21st Mar.  A Wheatear was found at nearby Nashe's Farm on the same day but it wasn't until 24th that one appeared in the big field at Stanborough GPs.  A further 3 birds were then seen on 5th & 6th April.  A slow passage for this species, especially given the seemingly ideal habitat at the pits.

An Oystercatcher also put in an appearance on 21st along with another Mediterranean Gull and a Little Egret.  The evening finished with a distant circling Marsh Harrier.

Two Dunlin were present on 22nd along with a singing Firecrest while a lone Golden Plover was seen flying around on 23rd & 24th Mar and then a flock of around 50 seen flying over on 27th. A single bird then appeared again on 5th April in the large field.  Equally brief in its visits was a single Shelduck seen on 26th & 30th Mar then on 2nd and 5th April.  Also present in the large field on 23rd Mar were a flock of around 130 Fieldfare but these had dwindled to just a handful in the first week of April.

A Willow Warbler was heard singing at the entrance on 30th Mar and various reports of a Water Pipit on 31st Mar and Rock Pipit on other dates were unconfirmed.  Yellow Wagtails of the usual British race flavissima arrived on 2nd April with at least 10 present on 7th.  Two Barnacle Geese were at the site on 4th April along with a Redshank and first singing Corn Bunting of the year.  With so much of the vegetation gone it remains to be seen whether this species will breed at the site this year.  Two Yellow-legged Gulls also passed through on 3rd April.

Good numbers of Little Ringed Plovers remain on site with at least 16 counted on 7th April.  At least 3 House Martins appeared in the hirundine flock on 6th April while the long-staying 7 Pintail dwindled to just 2 pairs and were not seen after that date.  Remaining onsite were fluctuating numbers of White Wagtails, a pair of Egyptian Geese, at least 2 Green Sandpipers and up to 3 Common Snipe.  Another welcome arrval was a Common Whitethroat on 10th April.

With many of the expected migrants now arriving (the site year list stands at 105 species) the stage is set (hopefully) for something a little more special.  Rain in the forecast still seems to evaporate before arriving and the skies are set to be clear for the foreseeable future so who knows?!

The last half of February proved very quiet with little to report and many of the same birds present.  However, a returning Oystercatcher arrived on 23rd and stayed until the next day - a welcome boost to morale as Spring tarries!

The site would appear suitable for them to breed but, being relatively new habitat and in constant flux, the site may not hold enough food for them.  Either way, the Oystercatcher brings this year's site total to 86.  Other wading species were in short supply with a maximum count of 11 Snipe flushed on 20th along with 2 Jack Snipe - presumably the same birds recorded earlier in the year.  Up to 80 Lapwing remained in the area along with 2 Green Sandpipers favouring the long drainage pit as usual.

An adult Yellow-legged Gull joined the gull roost on 23rd and appeared to be a different bird to the one on 4th being a heavier, possibly male, bird.

Wildfowl numbers have fluctuated, presumably in response to varying levels of disturbance at the site.  Mandarin Duck numbers have grown to 12 birds with Wigeon fluctuating between 20 to 50 birds.  A noticeable influx of Teal occurred with a peak of c150 on 24th but all virtually gone by the end of the week.  Tufted Duck numbers also peaked at 19 birds on 24th and varying numbers of Shoveler (max 21) and Gadwall (max 10) were present.  A single Pochard visited on 22nd while a Little Grebe has been seen on a couple of occasions.

Two Great Crested Grebes were present on 26th and 2 Coot remain on site.  Another Little Egret made a brief appearance on 23rd.  Perhaps more noticeable on site has been the flocks of birds gathering to feed in the large sheep fields.  Common Gulls have been passing through with the flock peaking at about 300 birds on 20th.  The most dramatic flocks have been the Woodpigeons with some Stock Doves and Jackdaws mixed in.  Several flocks of around 1,000 birds commute between the surrounding fields and virtually cover the crop when they land!

A smaller flock of c100 Fieldfares also remains in the field. These flocks of course attract predators and 2 Peregrines have continue to visit the site but, as yet, no Merlin.  Last year's wing-tagged Buzzard has reappeared and at least 2 Ravens have been seen flying over the site on a few occasions.  Another noticeable change - very much in line with previous years - is the growing flocks of Pied Wagtails and Meadow Pipits visiting the water's edge.  Hopefully these in time will harbour White Wagtails and maybe some scarcer pipits.

Passerine activity is more noticeable with the approach of Spring and both Yellowhammers and Reed Buntings are now singing on site.  They will hopefully breed but one major set-back for all passerines has been the sudden removal of the willow hedge between the ruin and Symondshyde Farm.  Aside from providing shelter and nesting opportunities for many birds the hedge-line also provided a valuable corridor into an otherwise shrub-less site.  The track between the hedges also held a variety of butterflies not found elsewhere on site.  It is not clear why the hedge was ripped out and hopefully it will be allowed to re-grow but equally it may be ploughed in and replaced with a fence.  A real loss at the very start of the breeding season.

The good news is that March has arrived and with it the promise of Spring migrants.  We'll hopefully soon have the calls of Little Ringed Plovers on site with Sand Martins and Swallows overhead.  Last year March saw some excellent birds so let's see what this year brings!

Despite the cold and quiet past few weeks of February little signs of Spring are beginning to creep in to view.  Easterlies have dominated the month so far with temperatures struggling to get above 5 degrees Celsius.  The cold, overcast conditions have not proved conducive to early Spring passage but finally, mid-month, it feels like we may be on the brink of Spring.

The sun actually came out yesterday and this coming week promises a new and warmer weather system.  By the last few years' standard, returning Oystercatchers are now officially late but little clues to early movement have appeared.  Today the lone and patient Coot was joined by another - I assume they can now get to the business of courtship and nest-building but I'm sure challengers will arrive!

Tufted Ducks have returned with numbers now up to 13 birds and just yesterday, 3 Mandarin Ducks arrived with 5 today.  Despite their love of parkland pools with mature trees for their nests these ducks seem to really enjoy the bare gravel pits and appear to find plenty to nibble at on the stony ground.

Wildfowl numbers in general have fluctuated and never seem to have recovered from the shooting onslaught unleashed by the farmer on his pet Mallards.  Unfortunately, the more savvy wild ducks are quick to leave and while occasionally visiting soon vacate the site once they spot human visitors.  These have included around 30 Wigeon, similar numbers of Shoveler, a few Gadwall, a single male Teal and female Pochard.

Other regulars have included the 2-3 pairs of Stonechats, 2 Green Sandpipers and varying numbers of Egyptian Geese arriving to roost in the evenings.  A high count of 24 birds was noted on 5th Feb.  A Chiffchaff was also foraging with the Stonechats on 5th.

Highlights of the first few weeks of February include 2 Jack Snipe flushed along with 10 Common Snipe on 10th Feb and an adult Yellow-legged Gull on 4th Feb.  A Little Owl was also calling from its usual area on 5th and a Little Egret was noted on 1st Feb.  A Great Crested Grebe on 8th Feb and a pair of Grey Partridge on 9th were also new for the site year list.  With a pair of Red-legged Partridge seen on 15th the site total now stands at a healthy 85 for 2025.

One final highlight of the month so far has been the continuing sighting of Marsh Harriers with a wing-tagged bird on 13th and a male on 14th.  The male has been presumed to be an immature - possibly a 3rd calendar year bird - with contrasting underwing and dark trailing edge to it wings.  However, it does not appear to be the same as a similar bird seen in November 2024 that had darker wings with dark ends to its tail feathers.  In addition a full adult male was seen on 26th June last year along with a juvenile and female bird.  Assuming some of the sightings are of the same birds it seems that there may have been 5-6 individuals involved over the last 12 months.  With records in every month for a whole year it seems to bode well for a possible breeding attempt somewhere in the area at some point.

Below are 4 of the birds seen over the last year:

Having recently been introduced to a paper on Marsh Harrier identification I am less sure about ageing Marsh Harriers as the paper suggests it is nigh on impossible!  The paper can be found here and makes for interesting reading.

Whatever the case, hopefully these birds will continue to be seen in the area and one day stay to breed.

The year finished with a variety of highlights - mostly interesting birds that lingered or reappeared and one final new species for the year in the form of 2 Jack Snipe flushed on 27th December along with at least 6 Common Snipe.  Good to know they are still visiting the site and they take the site total to 131 for the year.

A Little Owl was in its usual hole (pictured) on 7th December however, the next day, Storm Darragh brought its tree down and the hole now sits just a foot above the ground!  Subsequent visits have revealed new droppings at the lowered hole suggesting the Little Owl may have continued to visit the hole despite its toppling.

On the water, wildfowl numbers grew with at least 20 each of Shoveler and Gadwall and the occasional single Tufted Duck and Pochard.  Diving ducks seem to have pretty well vacated the site this month but the male Pintail stayed on until at least 29th Dec while Wigeon numbers peaked at 55+ mid-month.  At least one Little Grebe remains faithful to the deep pit.

The Caspian Gull reappeared on 24th along with an adult Yellow-legged Gull, the former then staying with the gull roost until 28th.

The immature male Marsh Harrier put in an appearance on 18th while a lone Golden Plover flew around the site on 26th.  Otherwise it was business as usual with up to 4 Green Sandpipers remaining on site and a flock of c80 Lapwings split between the deep pit and the new workings scrape.  At least 4 Stonechat stayed on the weedy areas while the 100-strong flock of Linnet continued to enjoy the seed-heads on the restored areas.

A final highlight, particularly as they don't seem to common this winter, were 3 Lesser Redpolls (soon to be demoted to simply 'Redpolls') that were feeding on the alders along the Coopers Green Lane border.

After a quiet autumn period the first week of November saw some welcome variety with a steady trickle of migrant birds visiting the site.  Unsurprisingly, easterly winds dominated the period and, as usual, seemed to change things up.

A male Marsh Harrier on 3rd Nov seemed to herald a few arrivals - 3 Wigeon that increased to 4 on 7th, at least 5 Golden Plover flying around the site and a huge flock of 400+ Linnet in the fields.  In addition, a peak count of 8+ Common Snipe on 3rd joined up to 6 Green Sandpipers, a flock of 60+ Lapwing​ and up to 3 pairs of Stonechat around the site.

The 4th Nov saw the arrival of a Dunlin and the 5th a smart adult female Shelduck.  The Barn Owl was also back at its hole that evening.

An adult Yellow-legged Gull joined the afternoon roost on 6th November.  The gulls seem to like the newly scraped exposed mud on the edge of the deep pit.  The area also looks good for waders and maybe will be as the ground matures and provides more invertebrate food.  The main pit however is clearly still attractive to waders with a Redshank appearing on 8th Nov.

The real highlight of the week however came on 9th Nov with the discovery of a smart male Black Redstart that spent the day hopping around the newly formed earth bank along the track.  While it had gone the next day many local birders were able to see it and it becomes #128 for the site year list.

While the Black Redstart charmed another bird puzzled - appearing to be the site's first Caspian Gull, closer scrutiny suggested it may have been a hybrid with a Herring Gull.  The bird gave a very 'Caspian' vibe with its bulk, extremely long legs and white head.  It also had a nice white underwing and clean black tail band in flight.  However, small notches on its tertial feathers, heavily chequered inner greater coverts and heavy anchor-marked scapulars suggested at least some Herring Gull influence.  Despite the bird's stand-out 'presence' among the other gulls it sadly does not make it on to the site list.  It surely must soon though!

Regardless of the disappointing outcome the Caspian-type gull provided further education on the pitfalls of gull ID and the challenge of pinning down pure species.  Equally, the first week of November was by no means disappointing and delivered a welcome variety of birds to spice things up after a dull autumn!

September and October proved to be very quiet as far as autumn migrants were concerned and in that respect a little disappointing.  However, on a positive note, heavy rainfall quickly re-filled the main pit and other areas such that plenty of open water with muddy margins still remains.  In addition, quarrying operations have by and large ceased for the winter period leaving the site relatively undisturbed and ready for anything that might be passing.

There have been some highlights however - the best perhaps being an adult Mediterranean Gull (first for the site this year) that joined the gull flock on 8th Oct.  The gull flock also attracted an adult Yellow-legged Gull on 26th Sep.  A flyover Great White Egret on 30th Sep took the site total for the year to 127 species.

Marsh Harriers continue to visit the site with the possibility of up to 3 different birds - a juvenile, a young male and a female.  Single records came from 30th Sep, 8th & 16th October.  Saturday 2nd Oct saw 3 Ringed Plovers visit briefly which, along with arriving Lapwing (62 on 21st Oct), Common Snipe (10+ on 11th Oct) and up to 3 virtually resident Green Sandpipers, were the only waders recorded in October.

Summer migrants had pretty well gone by the end of September with the last Swallow seen on 11th October.  The last Hobby was seen on 30th Sep and a Wheatear was present on 28th Sep with House and Sand Martins having gone early in September.  The usual winter arrivals have taken their place with at least 3 pairs of Stonechats regularly on site and a few Teal, Shoveler, Gadwall and Tufted Ducks making an appearance, albeit in very low numbers.  Sep 24th saw the first 2 Wigeon with 3 together on 5th Oct.

Perhaps the highlight for me has been a Barn Owl that has sat out in full view on a number of evenings, preening and stretching before heading out to hunt.  Hopefully, the pits will see some more action soon - there's plenty of possibilities, among them Rock Pipit, Black Redstart, Short-eared Owls and, of course, rarer geese or swans.

June is the pivotal month of the year when the compass swings slowly round from bringing us Spring migrants from the South to bringing us back Autumn migrants from the North.

As the last Ringed Plovers of Spring departed the first returning Green Sandpiper appeared on 15th with up to 3 birds on site subsequently.  Little Ringed Plover numbers also grew to at least 17 birds on 23rd June with apparent new arrivals from off site.  Lapwing numbers have also swelled during the month and the first Shoveler and pair of Teal appeared on 26th.

June 4th saw a young (2nd calendar year) Yellow-legged Gull on the deep pit - a species we will no doubt see more of as the the year progresses.

The anticipated wader 'drop-ins' began with an Oystercatcher on 15th followed by a Redshank on 20th.  Hopefully July will bring more waders and maybe a site tick in the from of a Spotted Redshank or Curlew Sandpiper!

A Great White Egret on 24th was the first for the year while a young male Marsh Harrier (pictured) briefly quartered the main pit weedy area on 26th.  This latter species has seen a huge increase in records over the last few years and maybe in time we'll see our first breeding pair.