Sunday 30 April 2017

30/04 Thatcham Marsh LNR CES visit 17.01

Location: Thatcham Marsh LNR CES visit 17.01
Session: 30-Apr-2017 05:30 to 10:30hrs
Headlines: Two Grasshopper Warblers is unusual in recent times for this site, when I was a trainee would have been less of an event.
Not a bad start to the 2017 CES season: 28 captured in the standard nets is a little below the average of 31 for the first visit, range 1998 7, 2004 63. Sedge Warbler at 13 captured is above the average of 12, range 1993 2, 2004 32. 4 Reed Warbler captures are down for visit one, average 7 range 1998 0, 2010 18 and looking forward to finding out were the UK control  we captured is from.
Weather: Bright, sunny periods, light wind early, breezy later, cool.
Present: JL, IW, JHW, DL, GB, JPM, SC
Nets: 222metres in five rides: standard nets one reed bed ride of 108+90M, additional nets: four scrub rides of 30M, 12M, 9M, 6M up from 06:05 to 10:10hrs
Lure (none):
Capture (New/Recapture)
34(19/15) V17/.01 (30/04/2017)
Matching 37(21/16) V16.01 (01/05/2016)
Species
New
Retrap
BLABI

1
BLACA
1

BLUTI
1

CETWA

2
CHIFF

2
DUNNO
1
1
GRAWA
2

GRETI

1
LOTTI

3
REEWA
2
2
ROBIN
1
1
SEDWA
11
2
Species
New
Retrap
BLABI
1

BLACA
2

CETWA

5
CHIFF
2
1
DUNNO
1

GRETI
2

GRSWO
1

LOTTI

2
REEBU

3
REEWA
3
2
ROBIN
2
1
SEDWA
6
1
WREN
1
1

Age: All full grown, the only 1st winter was one of the Dunnocks. 
Recaptures: (15) Blackbird 6y 314d Cetti’s Warbler 2y 348d, 308d Chiffchaff 3y 45d, 1y 229d Dunnock 182d Great Tit 224d Long-tailed Tit 2y 270d, 238d Robin 2y 200d Reed Warbler a control and 343d Sedge Warbler 330d; others recent.

One of todays Grasshopper Warblers

Sightings 48 Species: More Swift, well one, seen today plus a few Swallows. Common Terns have arrived back this week and a big female Sparrowhawk stooped across the reed bed. All three species of geese were quite noisy as they flew about mostly in pairs. At least two Cuckoos probably more called from around, Goldcrest also quite vocal. Other species seen Holly Blue and Speckled Wood Butterflies and a Reeves Munjac along one of the rides is worrying but not as bad as the Roe Deer usually found here. The carcass of recently kill a female Mallard along the standard ride had been stripped to the bone except for the wings, probably a Badger or maybe a Fox.

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