Rye Harbour Nature Reserve Wildlife Sightings: March 2024
By Paul Tinsley-Marshall
Site Manager, Rye Harbour Nature Reserve
March was generally unsettled, wet and dull, with a succession of frontal systems bringing rain and wind, though the month was not without some mild spring-like days. Temperatures were cooler than average at the beginning of the month, and southern areas recorded notably low daily minimum temperatures. The cool weather was replaced with milder weather for much of the rest of the month, with temperatures widely into the mid to high teens at times. Temperatures dipped again towards the end of the month, which ended on an unsettled note, with widespread showers and strong winds.
Counts of duck on Castle Water this month included Tufted Duck (54), Pochard (37), Shoveler (66), and on Flat Beach Pintail (286). A drake Garganey was on Ternery Pool on the 20th. There was a large movement of Brent Geese (850-1000) heading east on the 10th, and a lone individual lingering on the Salt Marsh on the 30th. An Egyptian Goose was present on Ternery Pool. Counts of waders included a single Spotted Redshank still present throughout the month, typically on Salt Pool and also on Flat Beach, a Bar-tailed Godwit on the 5th, Ruff (2) on Salt Pool on the 20th and a Whimbrel on the Salt Marsh on 30th. On Flat Beach counts included Avocet (66), Dunlin (300), Knot (100), Golden Plover (213), Grey Plover (33), Sanderling (14), and Oystercatcher (128). Breeding behaviours were on display from Ringed Plover, Oystercatcher, Lapwing, Redshank and Avocet. The first Common Tern was noted on 30th March, and Sandwich Tern (40+) numbers built up. Many Black-headed Gulls and Mediterranean Gulls are now investigating potential nesting locations on the islands on the Beach Reserve.
A White Stork was seen over the Discovery Centre on the 30th, and again a day or so later. A Bittern was booming at Castle Water from the 21st where Great Egret (4) were also noted on the 31st. At Castle Farm, Cattle Egret (4) were present on the 16th. Passerine migration include the first Wheatears noted at either end of the Beach Reserve on the 18th, and the first Swallow on the 30th over Gooder’s Hide. Many Chiffchaffs arrived, supplementing the wintering individuals already singing. Cetti’s Warblers were vocal throughout the month, and parties of Bearded Tit noted occasionally. Rock Pipit (3+) were noted on Flat Beach on the 11th. Skylark, Linnet and Reed Bunting could be seen and heard throughout. A pair of Grey Partridge were noted near Barn Pools, a Merlin was seen, and a Kestrel was observed hunting alongside Nook Drain. Redwing and Fieldfare still evident into the month, a Mistle Thrush was singing regularly near The Ocean, and Raven were seen making trips to and from the Beach Reserve.
Stoats were seen occasionally, including one individual dragging an unidentified large item of prey through the garden of Watch Cottage.
Lepidoptera on the wing this month included Brimstone, Peacock, Red Admiral and Small Tortoiseshell butterflies, and a Hummingbird Hawkmoth was seen on the 18th in a garden at the Winchelsea Beach end of the reserve. A Mottled Shieldbug was found at Watch Cottage on the 29th.
Plants in flower included Coltsfoot, White Deadnettle, Red Deadnettle, Common Whitlowgrass, Danish Scurvy-grass, Early Forget-me-not, Blackthorn, Grey Willow and Alder, and as ever, Common Gorse.
Thanks go to all the observers whose observations contribute to the monthly sighting reports. If you have spotted something interesting on the reserve, please do make a record via iRecord, and if you think it is particularly significant please let us know at [email protected]
Comments
Many thanks for your invaluable monthly summary.
23 Apr 2024 09:17:00
well done…where is the white stok looks like he is nest building,.had an fky bee in my garden.
23 Apr 2024 13:20:00
Fab summary of the month – Thank you.
Yes – that Stork is definitely nest building. We have seen many pairs of them over the past 6 years at Knepp.
24 Apr 2024 07:02:00
well done…where is the white stok looks like he is nest building,.had an fky bee in my garden.
24 Apr 2024 11:06:00
Moths caught in a trap early in any one night surely miss out on feeding for that night. Please tell me why this does not adversely affect them.
28 Apr 2024 12:34:00
Sussex Wildlife Trust:
Hi John.
We asked our friends at Butterfly Conservation, the UK’s leading butterfly and moth conservation organisation, for an expert response to your question. They told us that research has found only 2-3% of the individual moths released from a moth trap are recaught, even when a moth trap is run on consecutive nights. So, the same moth is very rarely impacted by a light trap for more than one night.
The vast majority of moth species are adults for multiple nights and also aren’t capable of feeding as they do all their feeding as caterpillars. For species that do feed as adults like the hawk-moths, they can fly as soon as they have warmed up their flight muscles when they emerge as adults, so are not completely dependent on obtaining nectar to power their flight. The majority of moths recorded at light traps are also males, so most of the females in a breeding population are not impacted at all and are still egg laying and flying as normal when near moth traps because they are less migratory so fly near moth traps less than males.
We follow the guidance around the welfare of individual moths relating to moth trap recording here: https://butterfly-conservation.org/moths/moth-recording/how-to-start-mothing
A great source of information that highlights the importance of light trap recording and that it outweighs the temporary impact on individual moths is ‘The State of Larger Moths 2021 Report’ https://butterfly-conservation.org/sites/default/files/2021-03/StateofMothsReport2021.pdf. Page 10 shows that some moth species have increased in abundance in moth traps, which would not be the case if there were significant negative impacts on all moths from the trapping method itself.
Paul Tinsley-Marshall