Sunday, 18 July 2021

17/07 Thatcham Marsh LNR CES 2021-08

Location: Thatcham Marsh LNR Constant Effort Site 2021.08 of 12
Session: 17/07/2021, 06:00 to 11:00hrs
Notes: CES visit 8 total is on the low side mainly due to poor breeding outcomes (so far) of Reed Warbler and Sedge Warbler. Treecreepers are scarce in recent years so nice to know they are still breeding nearby. The adult Cetti’s Warblers were in primary moult. Many of the juveniles were in post juvenile moult
 Visit 08 totals of primary species, last two active years then random selection
     Reed Warbler                      Sedge Warbler        
    2021     5 adults   7 juvs       2 adults  1 juv
    2020                no ringing covid
    2019     6 adults 10 juvs      6 adults   4 juvs
    2015     7 adults 19 juvs      2 adults   2 juvs
    2000   19 adults 14 juvs      3 adults   6 juvs
    1995     3 adults 19 juvs      5 adults 14 juvs
    1993     8 adults   7 juvs      6 adults   8 juvs (first year of CES)
Weather: bright sun, calm, hot.
Nets: 198metres in 1 ride of 198M up from 06:30 to 10:30hrs
Lures: None
Cetti’s Warbler          ringed 15/05/2018
Reed Warbler           ringed 17/06/2018, 23/05/2021, 08/07/2021
Sedge Warbler         ringed 12/06/2021

Sightings 36 species:
A brief visit from a Kingfisher that flew through a gap in the scrub near the ringing station. One or two other scarce (for the marsh) species in the scrub: Treecreeper and Nuthatch. Just a single Swift seen in the clear blue sky all session.

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