Sunday 28th June 2026

 

Another tropical night followed by an increasingly windy morning. Southbound 45 Swift, 11 Sand Martin, 10 Curlew, 5 Oyk & Sandwich Tern with northbound 4 Sandwich & a Common Tern. Yet more juvenile Chiffchaff turning up suggesting that productivity at sites nearby has been good this year. 2 Black Redstart were on the Fort & 2 Sanderling on the beach. An adult Cuckoo at the top of the observatory will be departing to Africa.

July Highflyer is infrequent here turning up roughly one year in three from its woodland home.

Ringing: 3 Chiffchaff, 1 Blue Tit, 1 Cetti's Warbler, 1 House Sparrow

Saturday 27th June 2026

 

The hot conditions continue. Migrants include Chiffchaff, Reed & Sedge Warbler. Tad early for autumn Sedge Warbler passage to start but with the disrupted weather anything can happen. Offshore southbound 9 Curlew & 2 Sandwich Tern with northbound 8 Little Tern. Black Red singing on the Fort most of the morning.

First site record of Pale Shoulder which is a rare immigrant to our shores.

Very busy moth night in the hot humid conditions. Third site record of Scarce Black Arches which is an immigrant species was the pick of the bunch.

Ringing: 2 Cetti's Warbler, 1 Blue Tit, 1 Dunnock, 1 Linnet, 1 Sedge Warbler.

Friday 26th June 2026

Blue tit (Cyanistes caeruleus)

Humid from the outset with only a slight breeze and a slight haze to make it slightly colder. However an interesting morning of observations with a Spoonbill flying north over the observatory and a pair Little Tern flying along the river towards the port. 1 Lapwing was present on the reserve.

Seawatching produced 4 Black-headed Gull and 1 Curlew south. 2 Sandwich Tern and a Mediterranean Gull north. 1 Oystercatcher south and then towards the port. 

Moth trapping: 126 Species of moths caught in our 3 traps last night, once again a warm night, less wind. Today's moth of the day is the Poplar Lutestring despite all the poplar trees here, the moth has only occurred on a handful of occasions, as the name suggests the caterpillar feeds on poplar. There are three races of this moth in the UK. 

 

Poplar Lutestring (Tethea or)

Bird Ringing: 3 Blue Tit, 2 Linnet, 2 Whitethroat, 1 Cetti's Warbler, 1 Coal Tit, 1 Greater Spotted Woodpecker, 1 Redstart. 

First summer male caught today in our mist nets, this individual had commenced its post breeding moult, which is unexpected at this location, suggesting could have bred/attempted to breed in the local area and the bird might possibly hang around the area with a reduced flight capability for the duration or part of its moult. Our first autumn record is the 3rd July onwards. Very few pairs nest in Suffolk with the closest confirmed breeding areas being in the heathland around Woodbridge ministry of defence. 

Redstart (Phoenicurus phoenicurus)

Thursday 25th June 2026

Linnet (Linaria cannabina) a male individual we have ringed. We are one of only 2 sites in the UK to have an active RAS (retrapping adults survival i.e. monitoring adult survival) in the UK due to our good population size.

A sunny but windy morning, with very few passage birds within the compound or out to sea, with 5 Swift overhead early morning and a group of young Chiffchaff that could have moved down into the area from towards Felixstowe town. 

Seawatching: 3 Black-headed gulls were seen flying north and an Oystercatcher south then towards the port. 

Moth trapping: 126 species recorded last night between the three traps, despite strong winds in the morning. Pick of the bunch is a small micro, but our first site record, the Thistle Straw (Aethes cnicana). This moth's caterpillar feeds on, as the name suggests, Thistle or plume thistles (Cirsium) to be precise. There are a few of these plants at this location so good chance it might be staying. 

First site record of the Thistle Straw (Aethes cnicana).

Bird ringing: 4 Chiffchaff, 1 Blue Tit, 1 Dunnock, 1 Whitethroat.  

Ringing Recoveries

Blue Tit ringed Trimley Marshes 11th October 2025 obviously bred somewhere near LBO as it turned up here as a family party with its partner & offspring on 19th June 2026.

Chiffchaff ringed Viewswood, East Sussex on 8th April 2023 was recaught 135 km away at LBO on 22nd June 2026. This would have been on spring passage in Sussex three years ago, but difficult to know why it was here at this time of the year unless it has attempted breeding somewhere in this part of the country.

Wednesday 24th June 2026

 

Seem to be getting a turnover of individual Sanderling at the moment as autumn passage is underway. Otherwise visiting juveniles dispersing in search of pastures new included 2 Coal Tit, 2 Great-spotted Woodpecker & Grey Wagtail. Black Red was singing by the museum & the first Sand Martin of the autumn went south.

Second site record of Goat Moth following on from the first one last year.

Ringing: 2 Blue Tit. 2 Coal Tit, 2 Great Spotted Woodpecker, 2 Whitethroat, 1 Cetti's Warbler, 1 Dunnock, 1 Goldfinch, 1 Grey Wagtail, 1 Linnet, 1 Wren.

Tuesday 23rd June 2026

Ringed Plover (Charadrius hiaticula), 8 Adults present on the site today and this one chick (shown above) that is now certainly looking adult like, really promising to see this individual get to this stage. 

Starting the day with sporadic showers, then clearing to give a bright sunny morning. 3 Sandwich Tern over east and a Sanderling out on the beach on the reserve. 2 Mediterranean gulls flying around the river mouth. 4 Sanderling on the beach in the evening. 

Seawatching produced 8 Teals south. 3 Common Scoter north. An Oystercatcher south and then flying up the river. 

Moth trapping: 126 species across our 3 traps, a slight increase of recent daily counts, owing to a cloudy night keeping temperatures high.

 Today's moth of the day is the Varied Coronet, a fairly recently colonizing species, since the 1940s, it is classified in the recent Atlas of macro moths in Britain as common, however we haven't seen it in 10 years!, they occur in calcareous grassland and gardens and feed on Sweet William (Dianthus barbatus) and Bladder Campion. We are likely seeing dispersal of these more unusual species due to the current good weather for moths on the wing looking for new habitats. 

Varied Coronet  (Hadena compta) - Our first one in 10 years

Bird Ringing: 1 Chiffchaff, 1 House Sparrow.