Saturday, 23 February 2013

Some Recent Recoveries from BTO HQ

This week I received some good news in the form of five ringing recovery/control sheets back from the BTO. Two were of birds that I had ringed, and three were of colour ringed birds that I had see whilst out birding. 

With regard to the two recoveries, the two birds in questions were both reed buntings that I ringed in my garden on 11th March 2012. The birds appeared to be a pair and were feeding on some millet that I had scattered around under the feeders. I was aware of one of these birds being recaptured, since it was trapped by Barry Duffin at Titchfield Haven, in the Quinoa field. However I was surprised to see that he had also caught the second bird, at the same site, one month later.


Species:
Reed Bunting         
Scheme:
GBT         
Ring no:
Y303175

Ringing details
Age: 5  Sex: male  Sex meth: -  P.ringed: -  P.alive: -  Condition: -
Colour marks added: -  Metal marks added: -  Act1: -  Act2: -

Ringing date: 11-Mar-2012  


Finding details
Ring not verified  Age: 4  Sex: M  Sex meth: -
Colour marks added: -    Metal marks added: -    Act1: T  Act2: -

Finding date: 30-Oct-2012  
Reg code: TFH  Place code: TFH  Site name: Titchfield Haven, Hill Head, Fareham, Hampshire
County code: GBHAM  Grid ref: SU5302   Co-ords: 50deg 49min N  1deg 15min W 
Hab1: B7  Hab2: C7

Biometrics: Wing: 82 mm.   Weight: 18.6 g.   Time: 1030hrs

Finding condition: 8:20  Movement: --
Controlled    Intentionally Taken
Remarks:

Duration: 233 days    Distance: 7 km    Direction: 203deg (SSW)

Species:

Reed Bunting         

Scheme:

GBT         

Ring no:

Y303176

Ringing details
Age: 4  Sex: female  Sex meth: -  P.ringed: -  P.alive: -  Condition: -
Colour marks added: -  Metal marks added: -  Act1: -  Act2: -

Ringing date: 11-Mar-2012  


Finding details
Ring not verified  Age: 4  Sex: F  Sex meth: -
Colour marks added: -    Metal marks added: -    Act1: W  Act2: -

Finding date: 30-Nov-2012  
Reg code: TFH  Place code: TFH  Site name: Titchfield Haven, Hill Head, Fareham, Hampshire
County code: GBHAM  Grid ref: SU5302   Co-ords: 50deg 49min N  1deg 15min W 
Hab1: E3  Hab2: --

Biometrics: Wing: 76 mm.   Weight: 18.8 g.   Time: 1330hrs

Finding condition: 8:20  Movement: --
Controlled    Intentionally Taken
Remarks:

Admittedly a movement of seven kilometres, was not that noteworthy, but nonetheless it was a 100% recovery rate for reed buntings ringed in my garden in 2012.

The next bird was a colour-ringed redshank that I saw at Bunny Meadows on 6th October 2012. I think I may have speculated at the time that this bird was probably ringed at Hamble Point, since that is a regular ringing location on The Solent, and sure enough, that was the case.


Species:
Redshank         
Scheme:
GBT         
Ring no:
DD51278

Ringing details
Age: 6  Sex: unknown  Sex meth: -  P.ringed: -  P.alive: -  Condition: -
Colour marks added: I  Metal marks added: -  Act1: -  Act2: -
Colour marks left below knee: W, right below knee: W,Y, left above knee: M, right above knee: W

Ringing date: 27-Mar-2011  
Reg code: HAM  Place code: HAM  Site name: Hamble Point, Southampton Water, Hampshire
County code: GBHAM  Grid ref: SU4805   Co-ords: 50deg 50min N  1deg 19min W 
Hab1: H3  Hab2: --

Biometrics: Wing: 177 mm.   Weight: 172 g.   Time: 1455hrs

Remarks:



Finding details
Ring not verified  Age: 4  Sex: -  Sex meth: -
Colour marks added: -    Metal marks added: -    Act1: -  Act2: -

Finding date: 06-Oct-2012  
Reg code: ---  Place code: BUNMED  Site name: Bunny Meadows, Warsash, Hampshire
County code: GBHAM  Grid ref: SU4808   Co-ords: 50deg 52min N  1deg 19min W 
Hab1: H3  Hab2: --

Biometrics: Wing: -- mm.   Weight: -- g.   Time: --hrs

Finding condition: 89:81  Movement: --
Sight record by a ringer    Identified by Colour Ring(s)
Remarks:

Duration: 559 days    Distance: 4 km    Direction: 0deg (N)

Again this bird doesn't break any records on the distance or longevity scale, having been ringed 599 days previously and only four kilometres away, but it highlights the value of colour ringing birds again. I will be looking out for this bird in the future.

Then next two birds were mute swans, both of which were seen at Weston Shore, near Southampton. The birds were both adult, and were part of a family party of five birds. Many mute swans are ringed on the south coast, with the majority ringed in Christchurch Harbour, Dorset by Dave Stone, during the annual swan round up. As it turned out, that is where these birds were ringed.


Species:
Mute Swan         
Scheme:
GBT         
Ring no:
W22151

Ringing details
Age: 1  Sex: unknown  Sex meth: -  P.ringed: 4  P.alive: 4  Condition: -
Colour marks added: I  Metal marks added: -  Act1: -  Act2: -
Colour marks left below knee: ON(J5A)

Ringing date: 01-Oct-2006  
Reg code: XCH  Place code: XCH  Site name: Christchurch, Dorset
County code: GBDOR  Grid ref: SZ1692   Co-ords: 50deg 44min N  1deg 46min W 
Hab1: H3  Hab2: G7

Biometrics: Wing: -- mm.   Weight: -- g.   Time: --hrs

Remarks:


Finding details
Ring not verified  Age: 4  Sex: -  Sex meth: -
Colour marks added: -    Metal marks added: -    Act1: -  Act2: -

Finding date: 09-Dec-2012  
Reg code: ---  Place code: WESTON  Site name: Weston Shore, Southampton, Hampshire
County code: GBHAM  Grid ref: SU4409   Co-ords: 50deg 53min N  1deg 22min W 
Hab1: H1  Hab2: --

Biometrics: Wing: -- mm.   Weight: -- g.   Time: --hrs

Finding condition: 89:81  Movement: --
Sight record by a ringer    Identified by Colour Ring(s)
Remarks:

Duration: 2262 days    Distance: 33 km    Direction: 60deg (ENE)

As you can see this bird was ringed as a chick (age code 1) six years and 69 days previously. Again this is by no means a record, in fact the maximum recorded age for mute swan is 27 years, 6 months and 27 days, so it has a long way to go before being a recovery of note.

Species:
Mute Swan         
Scheme:
GBT         
Ring no:
W26469

Ringing details
Age: 5  Sex: unknown  Sex meth: -  P.ringed: -  P.alive: -  Condition: -
Colour marks added: I  Metal marks added: -  Act1: -  Act2: -
Colour marks left below knee: ON(N7L)

Ringing date: 19-Sep-2009  
Reg code: XCH  Place code: XCH  Site name: Christchurch, Dorset
County code: GBDOR  Grid ref: SZ1692   Co-ords: 50deg 44min N  1deg 46min W 
Hab1: H3  Hab2: G7

Biometrics: Wing: -- mm.   Weight: -- g.   Time: --hrs

Remarks:



Finding details
Ring not verified  Age: 4  Sex: -  Sex meth: -
Colour marks added: -    Metal marks added: -    Act1: -  Act2: -

Finding date: 09-Dec-2012  
Reg code: ---  Place code: WESTON  Site name: Weston Shore, Southampton, Hampshire
County code: GBHAM  Grid ref: SU4409   Co-ords: 50deg 53min N  1deg 22min W 
Hab1: H1  Hab2: --

Biometrics: Wing: -- mm.   Weight: -- g.   Time: --hrs

Finding condition: 89:81  Movement: --
Sight record by a ringer    Identified by Colour Ring(s)
Remarks:

Duration: 1178 days    Distance: 33 km    Direction: 60deg (ENE)

W26469 was ringed as a second year bird (age code 5) three years and 81 days previously. When recording colour rings it is worth remembering to note the colour of the ring, the lettering, if present, the colour of the letters and the location of the ring on the swans leg, since there are so many colour combinations around at present.

Sunday, 17 February 2013

At Last - Back Ringing at Manor Farm CP

Finally, after what seems to have been an age, the conditions were right for some bird ringing.  I was going to be light-handed, and the two helpers were relatively inexperianced, one trainee (Mark) and one on his first ever bird ringing session (Chris), so I only put up three nets. My plan was to site the nets so that they would provide a good range of species, but not the volume.

The day started well with the first bird being a first year song thrush, and the next two being two adult redwings. Blue tit, wren and robin, a retrap from 2 years 44 days previously, followed, and then a couple of blackbirds, of which one was an adult male, the other a first winter female. Two more blackbirds followed, another adult male and a first year female, before we caught our first goldcrest. So far this year I have only retrapped previously captured birds and Manor Farm, but today there were two new birds and one retrap. The retrap was another old bird, an adult male, that was previously caught as first year male in November 2010, 2 years and 58 days previously.Out of interest the oldest retrap I have recorded for this species is 3 years 45 days, this bird was also captured at Manor Farm.

A couple more robins, a great tit and three house sparrows, two new and one retrap, later and we were done. We ended the session having captured 26 birds of nine species. Mark was able to ring all the birds, except that is the house sparrows since they needed colour-ringing as part of my RAS project. Whereas Chris was able to see first hand, what bird ringing was all about, how to age and sex a range of species and see first hand the effort required if he wants to take up bird ringing.

Later in the afternoon I opened a net in the garden for a couple of hours. There was not too much going on, but I did catch a retrap blue tit, that was first ringed 2 years and 59 days previously, and a new goldfinch.

First year Female Goldfinch - the white nasal feathers at the base of the bill and the extent to
which the red feathers above the eye extend beyond the eye (or not tin this case), were the features used for sexing.

The bird was evidently a first year female, which was sexed by the white nasal feathers at the base of the bill, and the fact that the red feathers above the eye do not extend past the eye.

Abraded Goldfinch Primary Tips

Ageing this bird was achieved by the presence of one old greater covert (retained juvenile feather), abraded tips to the primaries, and the pointed and abraded tail feathers. 

Pointed and Abraded Goldfinch Tail Feathers

Finally I wanted to say thanks to Mark and Chris for their help today, and welcome Chris to the ringing scheme, since after his first experience he has confirmed that bird ringing is something that he wants to learn, so a welcome new pair of hands to help in the future.

Sunday, 10 February 2013

In Search of Winter Birds, Norfolk 2013 - Day 4

Day 4 was our final day of this years trip, and as with day 1, a large proportion of our time was spent travelling. After completing our chores at the cottage, leaving it spic and span so that we would be welcomed back in the future, we headed off. Our first stop was a second visit to Choseley, where bramblings, chaffinches and yellowhammers were still present in good numbers, and a barn owl hunting the roadside verges gave excellent views.

Marsh Tit Poecile palustris

Abbey Farm at Flitcham was our next stop, a guaranteed stop for tree sparrows. A small wildlife hide at this site looks our over a large pond and an area of grazed pasture. Mallard and common teal were present on the pond, whilst goldcrest, marsh, blue and great tits frequented the surrounding scrub. Last year we had recorded a little owl at this site, but there was to be no repeat of that this year.

The tree sparrows are usually found in the hedgerows either side of the road, and we could hear them as we walked back up the farm access track to the road. In total there were about six birds present, but they proved really difficult to get a clear view of, there was no chance of grabbing a photo.

The farmer was ploughing the field north of the road so we stopped in a gateway to scan; lapwing, common and black-headed gulls were feeding on the freshly ploughed earth and six common buzzards and a ring tail hen harrier were hunting over the field behind.

The final stop of our trip was Lynford Arboretum, in search of the elusive hawfinch. We have previously seen the species here, but not in recent years. This year though, as we approached the paddock, two birders signaled that they had one in the scope....success! There are now several bird feeders here and so common woodland birds were abundant, blue, great, coal, marsh and long-tailed tits were present along with siskin, chaffinch, brambling and bullfinch, the latter a species that had eluded us so far.

So after four days birding we had seen 119 species of bird, well 120 if you count the red kite that we saw as we were driving back around the M25. A reasonable tally, but well down on the 135 species seen last year. Birding was extremely difficult due the strong winds that blew from the north and south west, we all agreed that it had been the windiest winter trip we had done to date.

Monday, 4 February 2013

In Search of Winter Birds, Norfolk 2013 - Day 3

For day 3 of our trip we decided to start at Burnham Overy Staithe in search of the rough legged buzzard that had been in the area. We set off just after sunrise, but en-route our attention was drawn to a large flock of geese that appeared to be dropping into a nearby field around Choseley. We immediately changed direction and headed inland towards them.

Pink-footed geese Anser brachyrhynchus

We had yet to encounter a large flock of pink-footed geese on this trip but the spectacle of thousands of geese flying over calling, then wheeling around as they fall from the sky, really makes these trips worthwhile. Today we must have timed it perfectly, as the geese were moving inland from their overnight roost before dispersing across the landscape.

Pink-footed Geese

It was so difficult to count how many birds were present since they were constantly on the move, then dropping out of sight into a distant field. We estimated that there were at least 7,000 birds in this one flock.

Pink-footed Geese

When on the deck the geese were quite nervous, taking to the wing as soon as any potential predator approached. In most cases they needn't have worried, as what was approaching was a brown hare. The hares seemed unperturbed by the presence of the geese and would just carry on their daily routines, often running straight across a field through the middle of the flock, making the whole flock take to the wing.

Brown Hare Lepus europaeus with Pink-footed Geese

We arrived at Burham Overy Staithe as the tide was falling. A few waders (ringed plovers, redshank, bar-tailed godwits and a knot), were scattered sparsely over the mud, and marsh harriers hung in the wind. A quick look out to sea from the dunes produced a couple of red-throated divers, common scoter and eider, and a flock of white-fronted geese grazed on the fresh marsh behind the dunes.

If there is one rule in birding it is always to expect the unexpected, and today that rule was re-enforced by the presence of a purple sandpiper on a freshwater pool, in the middle of a meadow at Cley. Typically in winter this is a species of coastal, wave-washed, seaweed covered rocks, well at least that is their habitat in Hampshire. The bird at Cley was on a freshwater pool, along with a lapwing and a redshank, not the sort of habitat I have seen them in before. It was feeding in a similar style to the black-bellied dipper, submerging its head and walking forward in search of food....very bizarre!

Purple Sandpiper Calidris maritima with Redshank and Lapwing on a Freshwater Pool

After our brief visit to Cley, we decided to head back to an area where we had recently seen some barn owls feeding. Visitors to North Norfolk in the winter will be very well aware of how visible and approachable this species can be, and subsequently how easy they are to photograph. Unfortunately, the light today was not so good and therefore I had to set a high sensitivity level on the camera to stand a chance of getting even a half decent photo. 

Barn Owl Tyto alba (male)

As we headed towards our destination we were greeted by a stunning male barn owl hunting along the roadside verge, a precarious place for this species to hunt. The bird seemed oblivious to our presence, making several close passes before heading off across the field.

Barn Owl (male) 

This individual was a male, which can be seen by the pure white, unspotted underparts, females tend to have a more yellowish tinged breast with fine dark spots.

Barn Owl (male)

With not much light left for birding, we headed back to our accommodation for a short break before another well earned visit to the local pub.
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