Saturday 25 August 2012

RINGING SESSION 13 - 2012

25/08/2012  This morning we retrapped blue tit V415348, a female that we first caught (and ringed) five years ago, but not in the intervening period. Where has she been?  While unusual, this is by no means a record. Our oldest retrapped blue tit was 7.5 years (between ringing and recapture). Quite impressive for a small songbird with a typical lifespan (for a bird reaching maturit of only) 3 years. The maximum recorded age of a blue tit in the UK record is 9 years and 9 months - see BTO Birdfacts.


BLUE TIT (ADULT)

Today's totals (ringed and retraps) were:  

blackcap (3,2)
blue tit (1,2)
bullfinch (0,1)
chiffchaff (1,1)
great tit (0,1)
long-tailed tit (2,3)
reed warbler (1,0)
robin (1,0)
wren (1,1)

DAY TOTALS: 10 ringed (7 species), 11 retraps
NEW SPECIES: none

OBS: common darter (lots of them)

Sunday 19 August 2012

RINGING SESSION 12 - 2012

19/08/2012  Nothing of note to report, other than our first goldcrests of the year.

SEDGE WARBLER 15.08.12

Today's totals (ringed and retraps) were: 

blackcap (2,1)
blue tit (2,1)
chiffchaff (6,1)
goldcrest (2,0)
great tit (3,0)
long-tailed tit (6,0)
reed warbler (1,1)
robin (1,1)
willow warbler (1,1)
wren (2,0)

DAY TOTALS: 26 ringed (10 species), 6 retraps
NEW SPECIES: goldcrest

OBS: roe deer

Wednesday 15 August 2012

RINGING SESSION 11 - 2012

15/08/2012  This morning's session marked our 250th CES session. We haven't missed CES since joining the Scheme in 1992. We had planned a cake to celebrate, but settled for a fry-up and some bunting!



Today's totals (ringed and retraps) were:  

blackcap (4,0)
blue tit (1,0)
bullfinch (1,0)
chiffchaff (9,0)
dunnock (0,1)
garden warbler (1,0)
goldfinch (2,0)
great tit (3,0)
long-tailed tit (3,2)
reed warbler (4,0)
sedge warbler (1,0)
willow warbler (6,2)

DAY TOTALS: 35 ringed (11 species), 5 retraps
NEW SPECIES: garden warbler & sedge warler

OBS: grey heron, great spotted woodpecker, peacock butterfly & silver-washed fritillary

Sunday 12 August 2012

LOCAL RECOVERY: REED WARBLER X997979

We were recently notified that a reed warbler, ringed by GVRS in August 2011, was subsequently 'controlled' (caught and released by another ringer) at Portbury Wharf Ringing Station (PWRS) 6 km away, in May this year.
 
Not exactly mind blowing, but between-year short distance movements are of interest because they demonstrate site fidelity, which always seems remarkable for a migrant species like reed warbler that spends its winter in Africa.

To date we have ringed just over 1,000 reed warblers. Of these, only 6 have been controlled elsewhere: 4 of them locally (< 20 km away), one in Sussex and another in BELGIUM.
 
In addition, there have been 8 reed warblers ringed at other sites and controlled by us: 5 from Chew Valley Ringing Station (Somerset), one from Uskmouth (Gwent) and one from Poole (Dorset).

PWRS, at the other end of the Gordano Valley from us, has only recently been established, but is already proving to be a highly productive site. We're hoping to see a lot of interchange of birds between the two sites in the future.