Sunday, 13 August 2017

13/08 Thatcham Marsh LNR

Location: Thatcham Marsh LNR CEs visit 17.11
Session: 13-Aug-2017 05:30 hrs to 11:00hrs
Headlines: Another poor session, the reed bed was very quiet when we put the nets up. We had a guest with us for the session and it would have been nice to have had a good capture but that’s ringing. A total of 26 is below the 37 average for CES visit 11; range: 2005-11, 1999-72. No Sedge Warblers today but a couple more Reed Warbler than in 2016. Although phylos warblers were calling in the scrub along the reed bed ride we unfortunately didn’t capture any. In 2016 34 came from the standard nets so today’s 26 capture is not that bad. It would have been nice to get a bit more variety though. We cut back the collapsing sedge and cleaned out the rides after net down, not the best time of day to be active in a hot humid reed bed. Just one more CES session and we can start luring. Migration is in full swing now Willow Warblers have been passing through this week at one of our migration sites. Oh and I nearly fell off the plank after telling our guest to be careful crossing over on it.
Weather: Cool earlier, warm later, calm, sunny
Present: JL, IW, JHW, EMH, DL, GB, SC
Nets: 198metres on one reed bed standard net ride up from 06:10 to 10:10hrs; no additional nets.
Lure (none): 
Capture (New/Recapture)
26(18/08)
43(41/02) visit 11 14-Aug-2016
Species
New
Rtp
Juvs
Adults
BLACA
4
1
3
2
CETWA
2
1
3

DUNNO
2

2

REEWA
6
4
9
1
WREN
4
2
6

Species
New
Rtp
Juvs
Adults
BLACA
3

3

BLUTI
1

1

BULLF
1

1

CETWA
1
1
2

CHIFF
10

10

DUNNO
1

1

GOLDC
1

1

GRETI
1

1

LESWH
1

1

REEWA
7
1
8

ROBIN
2
1
2
1
SEDWA
3

3

WILWA
2

2

WREN
4
2
5
1

Recaptures: all recent except a Reed Warbler 1y 362d probably a migrant from elsewhere as was ringed it 16-Aug-2015 and recaptured it last year in July.

Sightings 40 Species: Ian’s list of species detected during the session. The Buzzard family was still very noisy, a lot of activity first thing in the scrub: a mixed flock of tits including calling Marsh Tit and other species, many hidden in the foliage so numbers probably an underestimate. One or two Swifts flew over but no hirundine seen. The Raven had a brown tone to its plumage and was probably one of the juveniles from the pair that nested nearby.

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