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.

With work and being away I've got a bit behind so a brief summary of late August and early September highlights below.

18th August - the site's first Black-tailed Godwit of the year finally made an appearance, with another 2 joining it on 20th.

19th August - the Barnacle Goose was present again with the Canada Geese flock and then again on 24th.

22nd August - the site's first Spotted Flychatcher since Sep 2021 was found near the horse paddocks and then another bird by the long drainage pit on 30th.

23rd August - a juv-type Marsh Harrier was seen and a Sedge Warbler was present in the main weedy area.  At least 7 Yellow Wagtails were recorded as well.

24th August - the first 3 Meadow Pipits of the autumn appeared in the evening, coming down to drink and bathe at the edge of the main pit.  A Common Snipe was also feeding at the water's edge and Stonechat numbers rose to 4 on site.  Five Swifts were also likely some of the last to be seen this year at the site.

27th August - a Wood Sandpiper was found in the long drainage ditch with a high count of 5 Green Sandpipers and 3 Common Sandpipers.  The 4th record of the species this year.
A Wheatear was also present and found the next day too.

30th August - a Whinchat was on the new fence along the main track.

31st August - a Mandarin was present on the main pit - perhaps the last for a while?

4th September - a juvenile Little Ringed Plover was probably the last for the year.  At least 10 Chiffchaffs were seen feeding in the willows over the long drainage pit water - an area that's proving very attractive to passage birds.

7th September - the arrival of a juvenile Little Stint along with a Ringed Plover brought welcome interest to the site with the stint a site year tick.  The Barnacle Goose made an appearance along with a Reed Warbler and Lesser Whitethroat feeding in the long drainage pit.

8th September - 3 Whinchat were found and rose to at least 4 birds on 12th Sep.  These birds continue to be present on the site along with up to 6 Stonechat.

13th September - while Yellow Wagtail numbers were at 7 again, Meadow Pipit numbers had risen to at least 40 birds on site.  Swallow & House Martin passage is now a continual feature of the site along with the odd Sand Martin.

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.