10/08 Thatcham Marsh LNR

Location: Thatcham Marsh LNR CES Visit 2025.11

Session: 10/08/2025 06:00 to 11:10hrs.

Present: JHW,IW,JL.

Weather: bright sunny clear, calm, warm.

Nets: one 198M long reed bed ride plus 12m scrub ride additional net up from 06:30 to 10:30hrs.

Lures (): None

Notes: The total for visit CES 2025.11 is 22, the 5 Chiffchaffs and 3 of the Blackcaps we from the scrub net. 22 is below the average of 36 for visit 11 (range 2006 – 11, 2021 – 85). It’s interesting that the higher total is from a recent year (2021) usually the big totals are from the early years. Comparison to last year’s matching visit shows the variety of species is poor this year. There was a mixed flock of mostly Long-tailed Tits, Blue Tits, Phylos (probably all Chiffchaff), Goldcrest, Blackcap Treecreeper and others but they apparently stayed east of the stream traveling north in the scrub parallel to the nets. The Chiffchaffs and Blackcaps in the scrub net were some of this flock. Mid-session it went very quiet, and we had at least one blank net round. It got uncomfortably hot just before nets down. 

Recaptures: (06)

Cetti’s Warbler   ringed: 12/07/2025.

Dunnock             ringed: 22/09/2022.

Reed Warbler     ringed: 03/05/2025, 02/07/2025.

Wren                   ringed: 12/07/2025, 26/07/2025.

Sightings: No hirundine seen this session, apart from the mixed flock mentioned above nothing unexpected.