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Over and Out

fredag 26. august 2022
af Chris Sharp

Today we were ringers in the mist.  Shortly after a murky dawn a mist drifted in and we went around to mostly empty nets.  With the mist few birds were moving; or calling for that matter.  Consequently our day total was low but not without some quality.  This quality was expressed in several ways.  Firstly the "lake" nets were open and though they were not as productive as yesterday a couple of young goldfinch went into the nets.  Though these juveniles have not yet attained the stunning beauty of their parents they are well on their way in their post-juvenile moult with their wings already resplendently black, white and gold.

And Chris had the good fortune of two good rounds in that he extracted: common linnet, tree pipit, common rosefinch and spotted flycatcher; then two female pied flycatchers.  He enjoyed handling and processing these birds as he has with all the birds he has experienced during his stay at Gedser.  He leaves tomorrow having enjoyed re-acquainting himself with warblers; seeing and ringing a red-breasted flycatcher and the very positive ringing experience here at Denmark's southern most point.

The afternoon was spent doing various chores around the houe, garden and in the pond.

So with that it is over and out for Chris as he returns to Germany to get back into numerous woodland birds, notably various tits.  He will miss the variety of birds encountered here.

People at the station: Henrik Jørgensen, Chris Sharp and Adam Qvist (who arrived quietly in the night).

Species Species Ringed Retrap
Skovpiber Tree Pipit 2  
Solsort Common Blackbird   2
Gæresanger Lesser Whitethroat 4 3
Tornsanger Common Whitethroat 1  
Havesanger Garden Warbler 4  
Munk Eurasian Blackcap 1 2
Løvsanger Willow Warbler 1  
Grå Fluesnapper Spotted Flycatcher 1  
Broget Fluesnapper Eurasian Pied Flycatcher 2  
Musvit Great Tit   3
Stillits European Goldfinch 2  
Tomirisk Common Linnet 1  
Kamindompap Common Rosefinch 1  
    20 10

 

 

 

Copulating

torsdag 25. august 2022
af Chris Sharp

Well, that's got your attention!

Today Chris had an extraction tick (new species to remove from the nets).  A consequence of bird ringers using mist nets is that they occasionally catch other animals.  Chris has, previously, extracted from mist nets various bats, butterflies and large beetles; hornets, wasps, dragonflies, frogs; and a toad that had mysteriously got into the second net panel. 

This morning's new extraction was not a new species - dragonflies again; but it was a copulating pair.  The nuptial pair were conjoined in typical dragonfly fashion at their abdomen and thorax, so forming a flying "heart-shaped" couple.  With patience and care dragonflies can be extracted without harming them.  This was done, and the pair flew-off; their coitous uninterupted.  Hopefully they found a suitable wet spot for the female to lay her fertilised eggs. 

After the standard session in the ringing garden Henrik and Chris opened some nets at the pond as swallows, yellow wagtails and good numbers of goldfinch had been seen flying around.  Also, in the early morning - dawn - tree pipits had been briefly heard.  It was a success with some of all the above mentioned species being caught.  Then the final bird out of those nets was a pleasant surprise: a stonechat.  From a distance it appeared to be a juvenile but upon extraction it was an adult male in advanced moult; despite its somewhat tatty appearance it was an interesting bird to study and ring.

People at the station: Henrik Jørgensen and Chris Sharp

Species Species Ringed  Retrap
Landsvale Barn Swallow 1  
Skovpiber Tree Pipit 1  
Gul Vpistijert Wetern Yellow Wagtail 5  
Nattergal Thrush Nightingale   1
Sortstrubet Bynkefugl Eurasian Stonechat 1  
Solsort Common Blackbird   1
Gærdesanger Lesser Whitethroat 8 1
Tornsanger Common Whitethroat 6  
Havesanger  Garden Warbler 2 1
Munk Eurasian Blackcap 9 5
Løvsanger Willow Warbler 2  
Broget Fluesnapper Pied Flycatcher 1  
Rødrygget Tornskade Red-backed Shrike 1  
Stillits  Europen Goldfinch 2  
    39 9

 

 

 

 

 

A Lesser day - not really?

onsdag 24. august 2022
af Chris Sharp

As expected today's catch was down on yesterdays.  This trend is expected to continue for the next few days as the strong south-easterly wind seems to be inhibiting most migratory movement.  For visiting ringers this can sometimes be a negative but its the reality of the functioning of a bird observatory.  A bird observatory does not necessarily equate to large numbers of birds passing through each day (O, how we wish)!  Its an observatory and it observes, records and with long term data sets compiled from consistent and constant effort monitors trends in avian populations.

So we didn't catch much today but it allowed us to do other jobs that are an essential part of observatory work, such as: clearing brambles from the rides and paths; cleaning bird bags, drying them in the sun, and then chasing the few that blew down the proverbial garden path; and a bit more interaction with some passing visitors.

The only birds that seemed to be moving were starlings - flying strongly out over the sea; goldfinches and from mid-morning some yellow wagtails.  Our captures of these last two species came in that period.

Tomorrow we suspect that the catch will be even lower - how one sometimes longs to be wrong!  But that is how it goes.

People at the station: Henrik Jørgensen and Chris Sharp

Species Species Ringed Retraps
Spuvehøg Sparrowhawk 1  
Gul Vipstjert Yellow Wagtail 2  
Nattergal Thrush Nightingale   1
Rødstjert Common Redstart 1  
Solsort Common Blackbird   2
Kærsanger Marsh Warbler 2  
Gærdesanger  Lesser Whitethroat 4  
Tornsanger Common Whitethroat 3  
Havesanger Garden Warbler 2 1
Munk Eurasian Blackcap 10 1
Broget Fluesnapper Eurpoean Pied Flycatcher 1  
Stillits European Goldfinch 1 1
    27 6

 

 

Into Lolland

tirsdag 23. august 2022
af Chris Sharp

From the start it was quiet.  And quiet it remained.  Few birds in the garden, so consequently few birds in the nets.  The only birds flitting around in any notable numbers were goldfinch and they are stubbonly staying out of the nets.

So we, Henrik and Chris, took Gert, a regular visitor and volunteer here, up on his offer to go on a little birding trip to Lolland.  Precisely we visited the Maribo Lakes.  For Chris this was a fine opportunity to see another part of Denmark.  And for all three of us it was a grand afternoon's birdwatching.  The highlights were black swarms of coot floating across the lakes with mallard, gadwall and good numbers of pochard, mixed in amongst them.  Several raptors were seen, including several white-tailed eagles presumably from the local breeding population.  For all of us the best moment was when we saw a white-tailed eagle, osprey and a black-kite in the same binocular view - that does not happen often.  Wonderful!  And thank-you Gert.

And tomorrow, as the cliche goes is another day but we suspect, hopefully wrongly, that it will be another quiet day; a change in wind direction is required.

People at the station: Henrik Jørgensen and Chris Sharp

Species Species  Ringed Retrap
Landsvale Swallow 1  
Nattergal Thrush Nighingale 1  
Solsort Blackbird   1
Rørsanger  Reed Warbler 1  
Gærdesanger Lesser Whitethroat 6 2
Tornsanger Common Whtethroat 5 4
Havesanger Garden Warbler 5 2
Munk Eurasian Blackcap 5 1
Gransanger  Common Chiffchaff 1  
Løvsanger Willow Warbler 5  
Broget Fluesnapper  European Pied Flycatcher 3  
Træløber Treecreeper 1  
    34 10

 

Juveniles

mandag 22. august 2022
af Chris Sharp

Today's figures were a respectacle seventy-seven birds caught of eighteen species, fairly typical of the last ten days or so. These figures are a fine summary of the catch but do not indicate much else about the birds passing through; almost certainly the birds caught at Gedser in this period are migrants.  The basic data for each bird includes biometrics like weight and wing-length; age, and where possible the bird's sex; and an indicative "measurement" of fat.

Without exception all the birds were carrying some fat.  This fat can be seen as accumulated deposits in the birds' abdomen and in the furcular pit - a depression at the top of the chest and extending into the throat.  This fat, along with lipid deposits in the liver, provide the fuel for the birds' migratory flights.  Also, in the fats utilization some metabolic water is released which contributes to the birds thermo-regulation during flight.

All but five of the birds captured today were juveniles.  This type of figure is not unusual in captures at ringing sites across Europe at this time of the year.  Information of this nature is used in several ways, for example: it allows an assessment of how successful a species has been this year in its breeding efforts.  This informaton's value is increased when it is compared to long-term data - that comes from continuous and sustained ringing projects through the years.

The majority of juvenile birds we caught today will rapidly move-on.  Today the three young ringers Stav, Daniel and Esben moved on too.  They had a good week's ringing and made a valued contribution to the observatory's work - thank-you!

In the afternoon Chris opened the nets at the pond because there was an obvious movement of yellow wagtails and goldfinches; he caught and ringed several, which unsurprisingly were fatty juveniles.

People at the station today were: Henrik Jørgensen, Chris Sharp, Stav Shay, Daniel Bloche and Esben Hansen.

And the birds were: 

Jernspurv/Dunnock                          0/1

Rødhals/Robin                                  1/0

Nattergal/Thrush Nightingale             1/0

Husrødstjert/Black Redstart               1/0

Rødstjert/Common Redstart               1/2

Solsort/Blackbird                                  0/1

Gulbug/Icterine Warbler                        1/0

Gærdesanger/Lesser Whitethroat       18/2

Tornsanger/Common Whitethroat           8/0

Havesanger/Garden Warbler                  6/1

Munk/Eurasian Blackcap                       13/1

Løvsanger/Willow Warbler                       6/0

Grå Fluesnapper/Spotted Flycatcher        1/0

Musvit/Great Tit                                          1/1

Rødrygget Tornskade/Red-backed Shrike  1/0

Stillits/Goldfinch                                           2/0

Gul Vipstjert/Yellow Wagtail                         6/0

Digesvale/Sand Martin                                1/0

Total 77/9 of 18 species

 

 

 

 

 

Hula Valley to Gedser

søndag 21. august 2022
af Chris Sharp and Stav Shay

Tomorrow morning will be the last morning's ringing for Daniel, Esben and Stav. It has been a good trip for them ringing a reasonable number of birds. For Stav, from Israel she has not only enjoyed some new birds but the weather too - it is noticeably cooler than the Hula Valley. During her visit she has had the opportunity to ring several new species, including a new one today: yellow wagtail, bringing her number of ringing ticks this week to fourteeen.

Apart from the blue tit which caused her much joy earlier in the week, several of the other birds she has enjoyed have been: sparrowhawk, common linnet, grasshopper warbler, wryneck and yellowhammer.

The sparrowhawk was a pleasing bird for her as it was the first raptor that she had handled and ringed, while the processing had a frission of excitement about because of the birds talons, skillfully avoided, just.  A yellowhammer got her very excited not just because of the birds vivid colours but it is a bird that is extremely rare in Israel, so not only a ringing tick but a totally new species too.  This also applied to the linnet. 

Though grasshopper warbler and wryneck occur in Israel they are exceptionally rare, so getting to handle both species was a double treat.  The wonderful colouring and patterning on the wryneck is a strong image that she will take away with her, along with very pleasant memories of a location that she has thoroughtly enjoyed: isolation, beach, butterflies, birds, general ambience accenuated by vivid greens; and pleasant people and company who she thanks for the wonderful experience.

Today we were also joined, for the second morning, by Robin and Mathi and their father; both the boys are interested in becoming ringers.  They certainly showed interest and knowledge. 

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Esben explaining bird ringing to Robin and Mathi

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Wing of a 1k Yellow Wagtail (Gul Vipstjert)

 

People present at the bird observatory: Henrick Jorgensen, Chris Sharp, Shave Shay, Esben Hansen and Daniel Bloche

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Slow Sausages

lørdag 20. august 2022
af Chris Sharp

For British birdwatchers and ringers of a certain age they may remember a television advert for Danish bacon with the jingle: Danish written all through it; and very tasty bacon it was too.  Today we did not have bacon but we had sausages of the real variety and the avian variety; first the feathered sausages.

Many of the birds caught today had high fat scores, several with fat scores of seven; these little fatties were nicknamed flying sausages.  A particular feathered sausage was a common whitethroat with a fat score of seven and a weight of 21.1g.  This, crudely, means it was carrying seven grams in fat to fuel its migration but the figure is actually quite amazing.  That means it's weight was about fifty percent up on its normal weight.  If this occured in humans in the autum and winter imagine the amount of clothing we'd have to have in our wardrobes; let alone the numerous cardiac health issues we'd have!

Though we had less birds today there was still quality in the catch: another wryneck, a common rosefinch, and finally not one, but two sparrowhawks caught in the nets.  The wryneck and sparrowhawks were much appreciated by a large number of "Friends of Gedser" who gathered here to share a barbeque together.  These people are the unsung heros of places like Gedser Bird Observatory in the numerous voluntary hours they put into maintaining the site, facilities and the general running of the observatory.  And their barbeque included a selection of very tasty, and much appreciated suasages accompanied by a fine selection of salads.

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Sparrowhawk

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Showing the Sparrowhawk

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Ageing the Rosefinch

Not only were two sparrowhawks caught in the net many more were seen migrating over the oberservatory and these were in the company of other raptors, including: buzzard, honez buzzard, osprey, kestrel, red-footed falcon and white-tailed eagle.  In the afternoon we were contacted about an injured juvenile white-tailed eagle; this was collected and taken to a re-hablitation center.

 

People at the station: Hendrick Jørgensen, Chris Sharp, Daniel Bloche, Esben Hansen, Shav Shay and many Friends of Gedser Bird Observatory.

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Cliches

fredag 19. august 2022
af Chris Sharp

Sometimes it seems that sporting cliches can be aptly applied to bird ringing: it's in the net; rain delayed start; and that was certainly the case today: when rain stopped play.  But before ringing for the day was abandoned we managed several hours of ringing, with the first two rounds being particularly rewarding with some quality in the bags; this was when most of the sixty-two birds were caught.

The catch had several highlights: another wryneck and red-backed shrike; and the first red-breasted flycatcher of the year.  The later species delighted everyone, particularly Chris who on arriving at the station had been asked if there were any species he particularly wanted to ring, his response was: the Scandinavian sub-species of long-tailed tit and to see (not necessarily ring), a red-breasted flycatcher - a bird he had only seen briefly, skulking behind bushes.  Today he got a good view of one, in the hand as he ringed the adult female.

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In the last couple of weeks there have been a good number of red-backed shrikes ringed, mostly juveniles, like today's new specimen.  In the ringing station's grounds there are two breeding pairs and most of the chicks have gone into the nets.  If today's new red-backed strike is one of those we will probably know when the rain stops, as the individuals tend to sit in quite promenient places.

An attempt at catching tawny owls failed last night - though a bird did bounce out of the net leaving  five or six downy feathers.  Our attempts at trying to catch some of the larger species are not proving too successful but we'll re-group and go again. 

People at the station: Henrik Jørgensen, Chris Sharp, Stav Shay, Daniel Bloche and Esben Hansen

Blue High

torsdag 18. august 2022
af Chris Sharp

Some bird ringers, and watchers, will find the following sentence to be quite incredible, even incredulous.  Today's highlight birds were a wryneck and a blue tit; yes equal status and in the same sentence too.  People ring at bird observatories with various motives.  A common motive is to encounter totally new birds.

Stav, an Israeli ringer assures us that blue tits are not found in her homeland and that it was a wish of hers to at least see one and hopefully ring one.  Today that wish came true!  A juvenile blue tit, still exhibiting part of its yellowish facial wash, was a a cause of much delight to her.  And her delight pleased us all.  Her delight became double delight when in the next round she extracted, and then got to ring a wryneck, a bird that she had also wished to encounter here.  This bird delighted us all with its amazing patterns and its "snake charm" neck movements.

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We were all pleased with the number of warblers in the first couple of rounds particularly the number of willow warblers.  It is suspected that the thunderstorm and heavy rain during the night may have driven them down into the garden.  

Again there was a notable movement of raptors, particularly sparrowhawks.  Twice sparrowhawks managed to escape from the nets before the running ringer could get to them.  Frustrating?  Yes!  But we know that we will catch some, eventually.

Tonight the team are going to try for tawny owl and nightjars.  Expectations are high, of course.

People at the station: Henrik Jørgensen, Chris sharp, Daniel Bloche, Esben Hansen and Stav Shay.

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Running - really?

onsdag 17. august 2022

How delightful it is, sometimes, to be wrong! 

Our expectations with the continued heat was that there would have been little bird movement and our catch would be low.  In the end we caught a pleasing 68 birds of 20 species.  Never large numbers in a round just a steady flow of birds that allowed a pleasant pace of ringing and much appreciation of the birds' features.  As in previous days the majority of birds were juveniles.

Late yesterday we had noted an increasing number of raptors flying over the garden towards the point, and presumably onto Germany.  The raptors were mostly buzzards and sparrowhawks with a few marsh harriers.  From early on this morning an increasing number of sparrowhawks was noted in, and going over the garden.  Consequently there were rising hopes of potentially catching one of these hawks.

At the start of the third round Chris went sprinting - off, not only to Stav's surprise but his too.  A well known fact is that Chris does not run, long ago the philosophy was adopted that: why run there is always another bus; but is there going to another sparrowhawk?  Sadly this rare olympian effort failed, the large female sparrowhawk managed to free herself from the net when Chris was two metres from the finish-line.

Throughout the day good numbers of raptors were seen, mostly sparrowhawks and buzzards but several honey buzzards, kestrels and marsh harriers too.  Given these observations a raptor net was set in the garden ready to come into action tomorrow.

During the afternoon some "dead - heading" (the removal of dead flowers) was done to several bushes that are attractive to butterflies, bees and other pollinators.  Hopefully this will extend the visits from the array of butterflies and moths which are currently frequenting the garden including: red admirals, peacocks, small torteshell, green-veined white, silver-wash fritillary and most excitingly many hummingbird moths.

Yesterday's nocturnal efforts failed.  But undaunted the group will try for nightjars again tonight.

People at the station: Henrik Jørgensen, Chris Sharp, Daniel Bloche, Stav Shay and Esben Hansen.

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