06/05/2012 This morning's session was the first of the 2012 Constant Effort Sites Scheme (CES) season. The nets were opened at 06:00 to a very chilly (5C), grey morning.
Following the wettest April for over 100 years, the ground was sodden and many of the nets lanes were still under water!
Following the wettest April for over 100 years, the ground was sodden and many of the nets lanes were still under water!
REDSTART (FEMALE) |
Catching was very slow throughout. 'Bird of the morning' was a female redstart, caught in one of the Z nets. This was only the 3rd time a redstart has been caught at the site in spring or early summer; the other 22 have all been in autumn.
Today's totals (ringed and retraps) were:
blackbird (2,1)
blackcap (2,0)
chiffchaff (1,0)
great tit (0,2)
common redstart (1,0)
reed bunting (1,0)
robin (1,0)
song thrush (1,0)
common whitethroat (1,0)
willow warbler (1,0)
wren (2,1)
DAY TOTALS: 13 ringed (11 species), 5 retraps
NEW SPECIES: blackbird, chiffchaff, common redstart, robin, song thrush, common whitethroat & wren
COMMON WHITETHROAT (Subad. MALE) |
BLACKCAP (FEMALE) |
BTO CONSTANT EFFORT RINGING
The Constant Effort Sites (CES) Scheme is the first national standardised ringing programme within the British Trust for Ornithology Ringing Scheme and has been running since 1983. Ringers operate the same nets in the same locations over the same time period at regular intervals through the breeding season at 120 sites throughout Britain and Ireland. The CES Scheme provides valuable trend information on abundance of adults and juveniles, productivity and also adult survival rates for 25 species of common songbird.
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