Many thanks to Tate Lloyd, assistant warden for the observations and images. We hope there may be further records of these terns throughout the breeding season.
A round up of our bird ringing activities (all birds ringed under licence from the British Trust for Ornithology with schedule one authority where appropriate), birding trips and other wildlife sorties within the UK and whenever we get chance, elsewhere.
Many thanks to Tate Lloyd, assistant warden for the observations and images. We hope there may be further records of these terns throughout the breeding season.
We needed to try to retrieve the GPS trackers today, so against our better judgement and despite the strong wind gave it a go.
The first nest went very well, female retrapped and tracker retrieved. Two chicks also ringed.
A call from Anglian Water staff to notify us that the Oystercatchers at Fakenham Sewage Works have two largish youngsters and within a couple of days we're on site to mark them for the project.
Capture was quite quick and they were soon back, wandering around the filterbeds under the watchful eye of their parents.
Total: 2
Oystercatcher (pulli) - 2
Fledging is well underway on the moor. Today along with Blackcap, Sedge Warbler, Wren, Great Tit and Blue Tit young, we caught a second female juvenile Kingfisher that had been bred on the reserve and the first absolute proof that Grasshopper Warbler have managed to get young off.
We are thrilled to be working with Natural England to learn more about Nightjar foraging routes beyond Dersingham Bog, and grateful to Greg Conway of the British Trust for Ornithology for training with regard to fitting and removal of GPS trackers.
We managed to catch three birds and fit tags that will record their movements. Most feeding occurs away from the breeding grounds, so knowledge of areas used by the birds is important, in order to preserve those sites in future years. One area of particular concern is the plan to increase the amount of reedbed along the North Norfolk coast as that may inadvertently destroy areas that the Nightjars depend on for feeding.
Total: 2 (1)
Nightjar - 2 (1) - all received GPS feather mounted trackers.
There have been a few disappointments regarding Marsh Harrier this year. A few pairs didn't return to their usual areas and some known nests were predated. It was therefore a relief to tag a brood of three this afternoon. There was a definite male (requiring an F ring) and female (requiring the slightly larger G ring), with a third bird that had a toe span measurement that might have been either male or female. In such cases it is usual to err on the side of caution and fit the larger ring. In this case the weight and wing measurement pointed to it being a female.
Captures totalled 31 today, including a Reed Warbler recorded for the third consecutive year. There were juveniles of several species, Wren, Kingfisher, Blue, Great, Coal Tit and also a young Marsh Tit that was fitted with a darvic for the ongoing project.
Some of the Long-tailed and Blue Tits are already starting their primary moult confirming that they've finished breeding.
After some heavy rain in the night it was quite still at 6am, but soon began to get windier as forecast. Despite the light showers that affected us between about 08:30am and 10:00am, that had not been in the forecast, we managed without any problems and finished on 31 birds.
Recaptures included a Chiffchaff ringed as a 3J in 2022 and caught every year since and a male Yellowhammer ringed in 2022 and not seen since its recapture in June of that year.
There were some nice captures of juvenile Long-tailed Tit and Robin, out in largish groups and without any apparent parental supervision.
Total: 26 (5)
Blackcap - 1
Blue Tit - 2
Chiffchaff - 5 (2)
Dunnock - 2
Goldcrest - 0 (1)
Long-tailed Tit - 9
Robin - 6
Whitethroat - 0 (1)
Yellowhammer - 1 (1)
Today we met up with Chris's trainee DW for Barn Owl ringing at the trust. One box with a video feed was known to have two owlets, pretty good going in a season when so many boxes are being found without eggs. There were also two other boxes to check with a third known to have recently fledged Jackdaws.
The owlets were assessed at 37 and 45 days old so their two eggs would have had other eggs laid between the laying dates. There was a single addled egg.
The wind was just low enough to allow a restricted mist netting session ( avoiding any risk of disturbing the nesting Marsh Harrier). The nest was also checked, via use of a drone, and the young found to be too young for ringing and tagging just yet. We were fairly sure, from another female's behaviour, there is a second nest close by but nothing could be found
We got a 9m up over the chalk stream, two 18m, 3 panel nets on the first bund after the base area, and a 12m net behind where the cars were parked.
Considering the limited number of nets up, a total of 28 birds wasn't bad. These included 5 retraps including a female Reed Warbler ringed as as an adult in2023. The number was swelled by a few recently fledged tits, and a Robin, Treecreeper and Blackcap.
Total: 23 (5)
Blackcap - 4 (1)
Blue Tit - 1
Dunnock - 1
Great Tit - 6
Long-tailed Tit - 3
Reed Bunting - 0 (1)
Reed Warbler - 2 (1)
Robin - 2
Sedge Warbler - 1 (2)
Song Thrush - 1
Treecreeper - 1
Wren - 1
The day started with a ringing demonstration at 8:30am. We had 4 nets up in the rides most sheltered from the SW breeze. We had a few birds that were caught shortly after the nets went up, that had to be processed and returned due to the possibility that young were being feed.
It turned out to be a slightly odd, if brief session. First bird was a 3JJ Chiffchaff that was returned to the area where it had leapt into a net as the adults were calling in that area and probably feeding it before the bird becoming independent following fledging. The next bird was a retrap Blackcap, ringed at an adjacent ringing site by another group in August 2021. Since that time it has been recorded at Hilly Piece on three occasions, although not in 2023. The second half of that Blackcap pairing was a bird hatched last year that we had already ringed in April of this year. The next bird was an adult Dunnock.
By this point we had been joined by the six people booked in for the demonstration. First of all they were able to see two Whitethroats, then two lesser Whitethroats. Then an adult Wren, another Whitethroat and finally a Blue Tit already with a BP 5 and in full primary moult.
They seemed to find the session very interesting, although none were able to video a release successfully as the birds were just too fast. While taking the nets down we caught another pair of Blackcaps, this time a new male and a female that had been ringed by us on the same day as the first Blackcap female.
We were quite surprised to find a bird already well into wing moult on 1st June 2025.
Totals: 10 (3)
Blackcap - 1 (3)
Blue Tit - 1
Chiffchaff - 1
Dunnock - 1
Lesser Whitethroat - 2
Whitethroat - 3
Wren - 1
Then once the nets were down we joined the exhibitors down at the farm and set up our stand with information and equipment linked to Iceni Bird Monitoring Group and some informative leaflets, miniature bird boxes and stuffed owls on loan from the Hawk and Owl Trust, Sculthorpe Moor. The day was very well attended and there was a great deal of interest in the work of the Hawk and Owl Trust and projects and monitoring undertaken by Iceni Bird Monitoring Group.
Monitoring at the beaver enclosure gave us 15 captures, a third of which were retraps. Very pleased, in particular, to reconnect with Reed Warbler BDC6025 that was ringed here in July 2023.
Still only one juvenile from this year, a 3JJ Dunnock.
Total: 10 (5)
Blackbird - 1
Chiffchaff - 2 (3)
Dunnock - 1
Reed Bunting - 1
Reed Warbler - 1 (1)
Robin - 1
Sedge Warbler - 2
Wren - 1 (1)
Valdi helped with some information for the marshes site. We knew that there had been no snow last winter and fields, usually wet, would be completely dry. Added to this there had been no records of Aquatic Warbler at a regular and usually easy site this year so the chances of the main three marshes specialities of Citrine Wagtail, Bluethroat and Aquatic Warbler may be a struggle with so little water on the fields.
We picked up a few extra species around the villages in the marshes, Kestrel, Rook and Jackdaw having been species missing in the earlier location.
Efforts here would mostly centre on seeing Citrine Wagtail, Bluethroat and Aquatic Warbler. None would be new to us, but rarely seen unless abroad nonetheless.
We tried a broadwalk that was actually closed. It was terribly dry and there could be no chance of Bluethroat there so resorted to looking at insect life.
The first true marsh site we tried was a stretch of open area near Mscichy. There was water in the roadside ditch but little across the open area out to the rank vegetation where the Aquatic Warblers might be. We didn't see Bluethroat or Citrine Wagtail. We could catch snatches of Aquatic Warbler song but the birds were very distant and it was impossible to link the song to a distant bird on a stick although we though we had seen at least one poorly.