Monday 17 November 2014

New for Year totals and a few recoveries

I have, quite rightly, been chided for not updating this blog in a quite a while - sorry for that. By way of an update on my ringing sites (Priory Country Park and Sandy Smith Nature Reserve) I feel it would be best to give you New for Year totals (for those unfamiliar with this phrase it gives a proven population total filtering out same year retraps).

Priory Country Park

Woodpigeon 2
Green Woodpecker 4
Great Spotted Woodpecker 2
Wren 26
Dunnock 41
Robin 25
Blackbird 31
Song Thrush 11
Reed Warbler 13
Whitethroat 19
Garden Warbler 29
Blackcap 148
Chiffchaff 41
Willow Warbler 2
Goldcrest 10
Long Tailed Tit 13
Blue Tit 85
Great Tit 60
Treecreeper 4
Magpie 2
Chaffinch 16
Goldfinch 8
Bullfinch 7

This comprises of 599 individual birds of 23 species. CES results are included in the totals - but so are non-CES results. All 12 CES visits were completed for the 4th year running. CES results this year were much improved on the previous two years, though not spectacular. The highlight being 4 Green Woodpeckers - normally we are lucky to catch 1 per year at this site - and a Blackbird first ringed in 2005 (a new IRG longevity record at an elderly 8 years, 312 days). Also of note were 10 Goldcrests caught before the arrival those of continental origins. An exceptional breeding year for the park.

Sandy Smith Nature Reserve

Mute Swan 1
Kingfisher 4
Green Woodpecker 2
Great Spotted Woodpecker 11
Meadow Pipit 1
Yellow Wagtail 1
Pied Wagtail 1
Wren 42
Dunnock 41
Robin 14
Stonechat 2
Blackbird 8
Song Thrush 5
Sedge Warbler 12
Reed Warbler 5
Lesser Whitethroat 1
Whitethroat 35
Garden Warbler 8
Blackcap 98
Chiffchaff 31
Willow Warbler 8
Goldcrest 6
Spotted Flycatcher 1
Long Tailed Tit 26
Marsh Tit 1
Coal Tit 7
Blue Tit 138
Great Tit 151
Nuthatch 4
Treecreeper 4
Jay 8
Magpie 4
Jackdaw 1
Chaffinch 20
Greenfinch 1
Goldfinch 4
Yellowhammer 1
Reed Bunting 5

This comprises of 713 individual birds of 38 species. All species new for the site this year are in bold (53 species have now been ringed on site & one - Mute Swan - with colour rings read). Of note - it was an extremely good year for catching Jays - at 8 new birds this is more than were caught in the entire county last year. Whitethroats had good numbers of adults around but didn't have a successful breeding season. The end of August & beginning of September were extremely good for high catch totals (150 being the highest of 3 sessions that went over 100).

Best bird status has to go to Stonechat. A juvenile male and female were ringed yesterday (16/11/14). The first in 20 years for the group - with just 3 previous records.


Above: Male and Female Stonechat.
 
More photographs of the Stonechats and a Pied Wagtail can be found on my blog here as well as other highlights of the year.
 
News of a few recoveries have filtered through as follows:
 
Blue Tit - V670579 - Ringed 28/05/12 at John O'Gaunt Golf Club. Recaptured 21/04/14 in Potton. A movement of 2 km, 693 days later.
 
Kestrel - EL36089 - Ringed 07/02/13 at Carlton. Road Casualy 21/09/14 in Chellington. A movement of 3 km, 591 days later.
 
Blue Tit - L302621 - Ringed 05/03/12 at Preston, Hertfordshire. Recaptured 12/04/14 Maydencroft Manor, Hertfordshire. A movement of 4 km, 768 days later.
 
Swallow - D044249  - Ringed 26/06/13 at Cardington. Ring read in field - 01/08/14 at Southill. A movement of 9 km, 401 days later.
 


Wednesday 30 July 2014

CES Update

Going by the overall numbers caught on each CES session at Priory Country Park this year, totals are up on 2012 and 2013 (which were 2 of the worst years in over 20 years of CES survey work here).

CES 1 - 04/05/14 - 15 (11) = 26 of 9 species
CES 2 - 18/05/14 - 8 (5) = 13 of 9 species
CES 3 - 31/05/14 - 19 (10) = 29 of 9 species
CES 4 - 08/06/14 - 19 (4) = 23 of 6 species
CES 5 - 19/06/14 - 15 (7) = 22 of 8 species
CES 6 - 30/06/14 - 20 (7) = 27 of 11 species
CES 7 - 06/07/14 - 25 (4) = 29 of 13 species
CES 8 - 20/07/14 - 40 (4) = 44 of 12 species
CES 9 - 27/07/14 - 42 (4) = 46 of 14 species

That adds up to 142 new birds and 56 recaptures = 198 handlings of 21 species.

Including an additional, pre CES session in April, the new for year totals so far are:

Green Woodpecker 3 (including a retrap adult from 2011& a juvenile)
Great Spotted Woodpecker 1 (a juvenile)
Wren 24 (including one from 2012)
Dunnock 23 (including 2 from 2011)
Robin 19 (including 1 from 2011)
Blackbird 18 (including retraps from 2005, 2007 and 2008)
Song Thrush 4 (all new)
Reed Warbler 7 (all new)
Whitethroat 15 (including 2 from 2011)
Garden Warbler 21 (including 1 from 2010)
Blackcap 63 (including 1 from 2012)
Chiffchaff 17 (including 1 from 2011 - a new IRG longevity record - and a British ringed control)
Goldcrest 2 (2 juveniles)
Long Tailed Tit 3 (including 1 from 2011)
Blue Tit 15 (including 1 from 2011)
Great Tit 16 (including 1 from 2010 and 2 from 2011)
Treecreeper 1 (all new)
Magpie 2 (2 juveniles)
Chaffinch 3 (including 1 from 2011)
Goldfinch 1 (all new)
Bullfinch 5 (including 1 from 2013)

A successful ringing demonstration was given to the guided bird walk on CES 9. They saw a wide range of species from Reed Warbler and Blackcap, to Blue Tit and Blackbird. The best though, was a juvenile Green Woodpecker.

I've just about managed to get each session in (it was nip and tuck for a couple due to other commitments & the weather) and I'm hoping to make each of the next 3, which will make 4 consecutive years of complete visits. Hopefully the increase in numbers will continue and the weather will hold good.

Saturday 31 May 2014

May Update

May has been a busy month for the birds whether they've been constructing nests, incubating eggs or feeding young (or all 3!). With the mild winter and good weather through April into May, there were signs aplenty that young would be fledging from the nest early this year. But has it proved to be that way?

Ringing results so far this year at Sandy Smith Nature Reserve:
(species that I can expect to catch juveniles)

Great Spotted Woodpecker = 8 adults, 0 juveniles
Wren = 8 adults, 0 juveniles
Dunnock = 5 adults, 2 juveniles (28/05/14 - earliest site record, previous 12/06/11)
Robin = 1 adult, 0 juveniles
Blackbird = 5 adults, 0 juveniles
Sedge Warbler = 10 adults, 0 juveniles
Whitethroat = 16 adults, 0 juveniles
Garden Warbler = 6 adults, 0 juveniles
Blackcap = 15 adults, 0 juveniles
Chiffchaff = 7 adults, 0 juveniles
Goldcrest = 0 adults, 1 juvenile (29/05/14 - earliest site record, previous 21/09/13)
Long Tailed Tit = 6 adults, 2 juveniles (29/05/14 - earliest site record, previous 28/06/13)
Blue Tit = 10 adults, 0 juveniles
Great Tit = 10 adults, 6 juveniles (29/05/14 - earliest site record, previous 30/05/11)
Chaffinch = 7 adults, 0 juveniles

The highlight amongst the above was the juvenile Goldcrest which was only the 2nd local juvenile ringed here after one last year. All the other Goldcrests are probable migrants caught much later in the year.

Above: Juvenile Goldcrest


Above: Another highlight was this adult Jay (2nd ringed at SSNR).

Below: As well as this Kingfisher


Ringing results so far this year at Priory Country Park:
(species that I can expect to catch juveniles - CES visits only)

Green Woodpecker = 1 adult, 0 juveniles
Wren = 9 adults, 0 juveniles
Dunnock = 6 adults, 2 juveniles (31/05/14 - earliest = 11/05/09)
Robin = 1 adult, 4 juveniles (18/05/14 - earliest = 04/05/09)
Blackbird = 5 adults, 0 juveniles
Song Thrush = 2 adults, 0 juveniles
Whitethroat = 4 adults, 0 juveniles
Garden Warbler = 8 adults, 0 juveniles
Blackcap = 18 adults, 3 juveniles (31/05/14 - earliest = 25/05/07)
Chiffchaff = 7 adults, 0 juveniles
Long Tailed Tit = 2 adults, 0 juveniles
Blue Tit = 5 adults, 4 juveniles (31/05/14 - earliest = 22/05/11)
Great Tit = 4 adults, 0 juveniles
Bullfinch = 2 adults, 0 juveniles

There have been other highlights of the CES ringing sessions. A male blackbird, first ringed on 15/10/2005 was recaptured on 18/05/2014, 8 years and 215 days later. This sets a new longevity record for the site and for Ivel Ringing Group.


Above: This Chiffchaff is a British ringed control caught on 18 & 31/05/14.
First ringing details not yet known.


Above: A juvenile Robin

Despite the recent heavy rains, I'm optomistic that this will still turn out to be a good breeding year. It's still early in the year and there's a lot more juveniles to catch up with on both these sites.

Friday 18 April 2014

Migrants & Breeding

With migrating birds still coming in (or yet to arrive in some species cases), some of those that have arrived are already getting down to business building nests and breeding. Resident species are also doing the same.

A pre-CES session on Wednesday at Priory Country Park, Bedford produced the following:

Green Woodpecker 0 (1) - 2 years, 315 days (from 2011)

Wren 3 (2) - including one from 2012
Dunnock 0 (4) - including one from 2011
Robin 1 (0)
Blackbird 1 (0)
Song Thrush 2 (0)
Blackcap 6 (1) - including a control
Chiffchaff 1 (1) - retrap from 2011
Long Tailed Tit 1 (1) - retrap from 2011
Blue Tit 3 (1) - retrap from 2011
Great Tit 1 (1)
Chaffinch 2 (0)
Bullfinch 1 (0)

I was struck by the number of females already well advanced with brood patches and in egg. Already in egg were: Long Tailed Tit, Blue Tit, Great Tit, Dunnock Brood patches were present in: Song Thrush, Blackcap, Blackbird, Chaffinch.

If the weather stays good, we could be in for a good breeding season.

Sunday 6 April 2014

A return to action

The start of 2014 was a bit windy and a wash out, meaning not many ringers were able to put any mist nets up. I've also been busy elsewhere but I've managed to find a bit of free time coinciding with ringable weather so a couple of early morning starts at Sandy Smith Nature Reserve have produced the following (retraps in brackets).

Great Spotted Woodpecker 2 (3) - 4 different birds (including an IRG & site longevity record at 3 years and 15 days)
Wren 0 (2)
Dunnock 0 (5) - including a site longevity record at 3 years, 25 days
Blackbird 1 (0) - a breeding female with a advanced brood patch (code 3)
Song Thrush 1 (0)
Chiffchaff 1 (0) - the first of the spring migrants
Long Tailed Tit 1 (1) - see photographs below
Blue Tit 1 (3)
Great Tit 1 (4)
Chaffinch 2 (1)

10 new birds and 19 retraps (29 handlings, 26 different birds).

There was one bird that went away unringed - that's because we are forbidden to ring this game species:

Above: A Red-Legged Partridge

Red-Legged Partridges, if they do stray into mist nets, would be more likely to leave a hole than to stay in. This one, after having a photo taken, was released and left to go on its merry way.

A much more regularly caught bird, the Long Tailed Tit, threw up another surprise as you can see:


Above & Below: Long Tailed Tit


This bird still retained some pigmentation, but was remarkably pale all over. It was caught along with a regularly coloured bird (presumably a pair) and had a better weight, though the colour of the bird does not effect it's ability to feed. It may provide it with more camouflage during the snowy times though!