Most of us woke up later than usual because the weather did not allow us to observe or go for ringing.
A perfect day to tidy up the attic, but also for the office, kitchen and repair bikes.
For my last day I prepared a short presentation about the soundscape ecology that took place in the evening.
Christian found some dry spots in between to do some observations, such as Wheatears, Meadow pipets and Whinchat. Simon had a few meetings with Knut and Lene. In the early evening he made a delicious dish!



Later I introduced the workflow about the nocturnal audio recordings that will be performed this season. It tracks the sounds of migratory birds that fly over at night. The recordings are made from sunset to sunrise and are analyzed by spectrograms that show the presence of different species. These spectrograms or sonograms are a visualization of sound frequencies over time. You can see the birdcalls that make it possible to analyze many recordings without listening to the entire file.
The data is recorded in a map system to support the preparation of the migration map of Europe.

Spectrogram or sonogram that visualizes the bird sounds: X axis shows the time and the Y axis presents the frequency. Most of the birds are located between 2kHz and 8kHz, higher up you can see some overtones that helps to identify species as well.

The Audiomoth is a mini computer that has a microphone on the right side down.  It can be programmed to record certain periods of interests over several weeks.

Workflow on the computer

I m looking forward to the results of the project and how it will be continued the coming years.
I´ m very thankfully to Simon to gave me the opportunity to setup this project and had the nice time with all volunteers at the Fuglestation . As non- birder, it was a new, exceptional, instructive experience that will be continued.

Now I ll prepare my 16 hours train journey to Brussels.

Thank you Fuglestation team and hope to see you again!

People: Simon S. Christiansen, Christian Stolz, Joost Van Duppen, Judith Kloibhofer, Yehonatan Ben Aroia,  Lene Kappelborg, Knud Pedersen, Anders & Agnethe.

After a long weekend without ringing due to Simon stay in Copenhagen for a few days. we woke up early and opened the nets in our new ringing site. The first round seemed very promising with some nice birds, mainly Dunnocks – Jernspurv and some Robins – Rødhals but after the first round the bird activity went down for the rest of the time and it was really slow but we had some nice migration over head while ringing. A flock of 30 Common Crossbills, some flocks of geese was seen and a Merlin trying to hunt passerines.

We finished the ringing with total 18 birds.

 People: Yehonatan Ben Aroia, Joost Van Duppen, Judith Kloibhofer, Simon S. Christiansen.

Gærdesmutte – Wren               1

Jernspurv – Dunnock                 6

Rødhals – Robin                          3

Rødstjert – Redstart                   1

Rørsanger – reed warbler         2

Havesanger – Garden warbler   1

Munk – Blackcap                           1

Gransanger – Chiffchaf                2

Grå fluesnnaper – Spotted flycatcher       1

Total-18

When we finished the ringing me and Judith joined for a few hours Christian that was counting migration all morning on the beach. Right when we arrived we had a very nice and close observation of a 23 Brent geese flying really low over beach and the Merlin that we saw earlier trying to hunt waders now, without any success. Also was nice to see  a few Red-breasted merganser migrating close to us and also the First rock pipits to arrive. Nice migration days are coming!

In the evening, after having a nice dinner that Christian cooked for us we had a nice time listening to “The Choir of the dunes” that had a amazing concert in the lighthouse and many people came to hear them!

A morning without rain, beach pools are slowly getting smaller, waders are moving on, so Christian took his chance to get some observations. The Great Skua was bored, because there was nothing to chaze and rest on the beach.
The little stint wobbled around and a Bar Tail Gotwit enjoyed the rest.
Judith & Joost followed Christian's observations an hour later.

Around the noon Lars Mortensen was guiding us together with 15 visitors about the European Grenen Life project, that defines the landscape management.
Yehonathan was checking the nets after days of storm, to avoid damage.

Later in the afternoon arrived our new guests in the apartment, Anders & Agnethe, Welcome, we wish you a nice stay in the station.
Judith made a delicious apple strüdel that we could eat for the coming days.
After our daily swim she served us a nice dinner as well to close the day.

People: Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer, Lars Mortensen, Anders & Agnethe.

Our morning started with observations. At 06:40 Judith and I were sitting at Grenen beach and counted migrating and roosting birds. The weather forecast showed some approaching rain, but we got lucky as two showers passed us on two sides while we remained dry in the middle. Rainbows were showing nicely as well several times during our stay and almost no rain fell during the entire time. The first non-ordinary bird was an oystercatcher (strandskade) that migrated towards South-East. A little later two brant geese (knortegås) followed. It was also cool to see the rising numbers of red-throated divers (rødstrubet lom) that roosted just off the beach – 9 individuals were resting while 2 migrated. The situation on the beach for waders (vadefugler) was still looking promising, but the bird numbers have declined in comparison with yesterday. Despite the ordinary species, the smart temminck’s stint (temmincksryle) showed again, a spotted sandpiper (sortklire) flew over, and the 2 redshanks (rødben) as well as 18 red knots (islandsk ryle) were still present.

While we were busy counting and observing, Joost did some more work on his sound-project and continued working on guidelines, so that we will be able to continue the night recordings after his departure. He went out to beach later as well and tried to record sounds and calls from waders, but the wind was strong which was bad for the quality of his recordings.

While Judith took a well-deserved nap, I helped Lene by explaining our work and showing our laboratory to a group of interested people. I was presenting in Norwegian and though Danish is very similar, some differences are peculiar, especially in bird names. For example, fulmars are called mallemuk (which comes from Dutch mal – stupid and mok – gull) in Danish, but havhest (seahorse) in Norwegian and the brant geese we observed earlier are knortegås (growling goose) in Danish but ringgås (ring goose) in Norwegian. You see, it was funny and a little guessing game when I was talking about certain bird species of which I haven't learnt the Danish name yet.

Later Knud visited the observatory with a group as well and showed them around in our facilities, while Yehonatan went for some observations in the neighborhood and recorded species such as sparrowhawk (spurvehøg) and whinchat (bynkefugl) and a tree full of red admiral butterflies (admiral).

Later in the evening, after our daily swim and tasty oven dish-dinner, Judith, Joost and I used the bird-radar to track the daily flight of the local gulls from Grenen beach to their overnight roosting site at Skagen harbor. Our guests Kirsten and Peder joint as well and tried to spot and identify the gulls that we see as red and yellow blobs on the radar screen. When we have strong winds, which is usually the case, the radar is receiving a lot of noise from the waves and it is very tricky to distinguish birds among the noise. But tonight, the wind calmed down and the radar signals of migrating birds were so strong that we even could identify individual gulls passing by.

Even later, Judith and Yehonatan went on the adventure that is night catching. I hope they manage to get something, although the night doesn’t look perfect with few clouds and little wind.

People: Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer, Lene Kappelborg, Knud Pedersen, Kirsten and Peder.

Writing music: Sigur Rós: Ágætis byrjun

After being very sick, and almost a week the I stayed only in bed, I am starting to feel better and slowly getting back to the normal observatory routine. So, in the night between the 6-7 of September, after already feeling better I decided to try and go night catching with Christian. It was nice to feel some fresh air after almost a week in bed. We arrived the beach around 22:00 and started looking the beach for some waders. The beach was filled with water paddles that attract a lot of waders in these days. After looking a lot finding on some Common ringed plovers – (Stor Præstekrave) and some Sanderlings (Sandløber) we found a Bar-tailed godwit (Lille Kobbersneppe) and got very close to it but couldn’t get it ?. But we didn’t give up and after some time we got another Red knot – (Islandsk Ryle)

Photo: Yehonatan ben aroia

In the morning we wanted to go for observation but it rained very hard so instead we all some good sleep until the late morning had some breakfast and around 12:00 we went out Yehonatan, Christian and Joost for observation on the beach while Judith, stayed to get the new bicycles that arrived. We saw some nice birds but mostly the usual birds and nothing else special, but still some very cool birds!

Sanderling jumping around.

After the observation and some resting, we all went up to the supermarket to buy some groceries for the house and for dinner. Then we all came back Yehonatan started making dinner while the others went for a short swim.

We had some nice dinner and a nice day!

Wow I am already at the bird observatory for a week now! The time passes really fast while doing bird ringing and observing, enjoying the amazing landscape and sea, doing some indoor work (input data, housework), helping by tours or events or talking to the other volunteers. It is really fun to do all this things and get the opportunity to learn a lot from all the others – thanks for that!

Today Simon, Christian, Joost and I went up very early to go ringing at the new ringing site, called “Kabeltrommelkrattet”. Although, the weather forecast already showed some rain for the morning, we stayed optimistic and hoped for a bit of sun in the morning. Unfortunately, that didn´t happen and we had to close the nets after half an hour. Even though we still catched six birds.

After coming back to the station, we had to change the wet clothes and warm up with some tea and a breakfast. In a short meeting we discussed what we can do instead of the ringing and planned the rest of the day. Then it was already time to say goodbye to Martin, who stayed here for two months. It was very nice to meet you and we wish you a good journey and a great time in Copenhagen!

In the meanwhile, the weather changed and got warmer again. Christian, Silke and I immediately used this opportunity to go to the tip for doing some bird observations. Joost and Chris joined us later as well. We found many waders enjoying the rain puddles on the beach. It was really nice to watch them as they came very close to us. We even found one rather rare species: the Temminck´s Stint (Temmincksryle). Furthermore we saw two Little Stints (Dværgryle), seven Turnstones (Stenvender) and one Ruff (Brushane) among the waders. Yehonatan used the opportunity of the empty flat for doing some cleaning.
One Temminck´s Stint (Temmincksryle) next to Ringed Plovers (Stor Præstekrave)

In the afternoon I showed Silke and Chris the Lighthouse. It was my first time being on the top of the lighthouse and it was just amazing to see all over Grenen, the sea and Skagen! I definitely have to use this opportunity more often. Afterwards I had to say goodbye to Silke and Chris – thanks for visiting me and it was very nice to show you around in Grenen and spending some time together.

Simon and Joost had a meeting before our daily meeting to talk about the analysing of the night recordings.

As everyday Christian, Joost and I went swimming. Today the waves were not that strong but the water was still really cold. Christian is alreadz adapting to the water life and looks a bit like a fish (see the picture below). Afterwards all of us were really hungry and we enjoyed some delicious pasta. Christian and Yehonatan then prepared for going nightcatching – let´s see if they can catch something.

Ringing (Kabeltrommelkrattet)

Jernspurv – Dunnock                                           1

Rødhals – Robin                                                  2

Rødstjert – Common Redstart                             1

Havesanger – Garden Warbler                            1

Løvsanger – Fitis Warbler                                    1

Sum: 6

People: Simon S. Christiansen, Martin Yordanov Georgiev, Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer, Silke and Chris.

The time has arrived for me to write my last blog (for this season). I shall however start with the usual recap of our activities today.

The main quest today was organising and a game event for 170 pupils between 7^th and 9^th grade across 8 classes. They came to the station as a part of a Kulturcykeltur programme with the art gallery, the Skagen church & the Library and culture centre in Skagen. Each locality organised a unique event in a form of a competition with the grand prize being tickets for the cinema in town!

Simon devoted a considerable amount of time creating, planning and preparing the game carried out here in the Lighthouse: “Find my limb”. The goal was to find a limb, sound or projectile belonging to a specific animal and then match the object to an photo of the given animal in the garden. The final step of the game was a good old competition of rock, paper, scissors. However there was a spicy twist. The participants were knocked out in direct elimination however those who lost had to cheer for the person who had defeated them. The whole day was accompanied by cheering and laughter which is what any school outdoor event should be like!

While all of this commotion was happening Yehonathan and I had a bit of a trip to the doctor’s office in town to make sure he was fresh as a cucumber for the days to come.

Joost had the responsibility for writing a guideline for the audio recordings to ensure that all volunteers are able to carry out this type of data collection once he has left. He followed that up with a skype meeting which looked super important!

Judith and Christian helped Simon throughout the entire event enduring long hours of wind and rain. Judith then showed her friends Silke & Chris around the peninsula and she even managed to see 7 Gannets, 8 Sanderlings and 14 common Eiders.

Christian used today’s event to make a unique and creative video which he used as our daily Facebook post. The video lets everyone have a try at guessing which animal the objects belong to!

Simon was definitely the busiest member of the team today as he conducted the entire event. In the afternoon he also met with Kurt the bicycle man who brought back four new old bikes in mint condition which are a welcome addition to the station’s fleet!

My day was mainly focused on sorting and preparing my luggage for my departure tomorrow. I of course devoted time to some goodbyes. When people ask me, what was the best part of my stay here was I can without hesitation state it was the people. On this journey I have met some unique characters who I hope to stay in touch for the future. This place offers a unique opportunity to work and live with like-minded people from all over. Just yesterday Christian and I were discussing how special it is to be doing this with seven people all from different nationalities.

Before dinner everyone went in for the daily dip in Kattegat!

Thank you Skagen and I hope to see you again. 

People: Simon S. Christiansen, Martin Yordanov Georgiev, Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer.

The weather didn't allow us to go for ringing or make observations today.  A very rainy and windy morning motivated us to clean the lab and bird club.  The appartement was cleaned by Rita Pate. The apartment hasn´t been so shiny as before I ve been arrived.
She let even a paper to say ´goodbye´ in 5 different languages, which was a extra surprise for all of us, thank you Rita!
Martin gave us a bicycle workshop, where he explained how to maintain the bicycles, to prevent damage when using the bicycles, because the current weather can also be harmful to bicycles.

From the attic we took the spare bicycles, which Simon brought to the bicycle repair shop, so that we could all cycle. Later, while Simon was preparing the games for tomorrow, Lene picked us up for a Grand Tour in Skagen. We have visited the port, had the opportunity to walk around the Skagens Museum and the Natural History Museum. We had the opportunity to see what the art looks like in Skagen and could see seabirds from close up instead of using a binoculars or telescopes.

She drove us as well form East to West of Skagen, and we had a breathtaking view on Skagen´s yellow architecture.
Thank you Lene for the interesting tour of Skagen!

Back to our lighthouse we left for a swim in the North Sea, which was surprising warm, with huge waves that dropped us 200m further on the beach.

People: Simon S. Christiansen, Martin Yordanov Georgiev, Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer, Rita Pate, Kurt Rasmussen, Lene Kappelborg, Silke and Chris.

Music - Mooncake Lagrange Points

Entry written in Chrisperspective.

Yehonatan and I went out early to open the nets at Sardinkrattet for the ringing effort of today. Simon, Martin, Judith and Joost today had the lucky chance to sleep a little longer. By the time they arrived, I was already out at Verdens Ende and did morning observations. It was a beautiful morning with some little rain showers, beautiful rainbows (regnbue) but mostly dry observations.

Rainbow at world's end.

Birdwise, the number of wheatears (stenpikker) was staggering. At some points, almost every pole in the dunes had a wheatear sitting on top of it. I observed also active migration of birds coming over the sea towards land. At one point, while scanning the landscape with my binoculars, I saw a brown bird landing in a thicket a couple of hundred meters away. The time for that observation was maybe one second, but I recognised white spots on the wings and on the tail. "Nightjar" (natravn) was the first thought appearing in my head. I later searched the area to try to find the bird again, but to no avail. The observation time was unfortunately so short, that I cannot comfortably say that it was indeed a nightjar I saw - sometimes birding is just like that. Anders was also out, doing a bird-observation-walk from Grenen to Nordstrand. His highlight, besides the many wheatears, were 3 stonechats (sortstrubet bynkefugl).

Northern wheatear (stenpikker)

In the meanwhile the abundance of wheatears was also noticed at the ringing site at Sardinkrattet. Despite catching only two individuals in the late morning the site many of the birds were seen flying over. In terms of ringing the day was very productive with a total of 33 birds being ringed between 12 different species. And the rainbows were noticed as well, when Martin left the lighthouse.

Upon returning from ringing Martin and I focused on the dissections and preparation of another European viper (hugorm) and a common buzzard (musvåge) who were both victims of car accidents. We have made videos about both specimens as well as a video on how to tan and preserve a snake hide.  Both animals were in a pretty bad state after their encounters with the vehicles. The viper had multiple ruptures of its skin and quite a few scales missing. Not to mention that a considerable part of its digestive system was outside of the body by the time we made the first cut.

The buzzard was in a very similar situation, its right eye was completely popped out from the orbit, both mandibles of the bill were detached from each other and the skull. Also the intestines were outside of the body as well. You can find out more about both in the commentary videos.

In the afternoon Judith, Joost, Martin and me took the usual daily swim.

Mexican fajitas were on the menu for dinner who left everyone quite full ????. The food was prepared mainly by me and Martin helped out a little bit :D

While we were busy dissecting and cooking Judith spent a considerable amount of time sorting our ever-growing picture archive, thank you Judith! Anders in meanwhile went out for yet another birding trip and found some common shelducks (gravand), which are always a nice sight! Joost used the time to do some sound stuff. :-)

Ringing (Sardinkrattet):

Dunnock - Jernspurv - 1
Robin - Rødhals - 4     
Redstart - Rødstjert - 4     
Whinchat - Bynkefugl - 1     
Wheatear - Stenpikker - 2     
Reed warbler - Rørsanger - 3                         
Lesser whitethroat - Gærdesanger - 2               
Common whitethroat - Tornsanger - 3     
Garden warbler - Havesanger - 1    
Willow warbler - Løvsanger (Song of Songs) - 9     
Spotted flycatcher - Grå Fluesnapper - 1     
Pied flycatcher - Broget Fluesnapper - 2      

Total: 33   

People: Simon S. Christiansen, Martin Yordanov Georgiev, Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer, Anders Odd Wulff Nielsen.

Writing music: "The Trapeze Swinger" - Iron and Wine and "Thong song" - Sisqo

Today I was the only one going out for bird observations at the northernmost point of Denmark. The weather forecast yesterday evening was rather bad, but I woke up at 5 am and checked the weather radar to get updated information. To my surprise and pleasure the rain would stop in ca. 1 hour! I quickly made coffee and found some food in the kitchen to get ready. During the night there had been quite a storm, so I decided to do the observations from the outermost dune chain to be able to spot waders resting in the ponds created by the nightly rain on the beach. Good numbers of waders were then indeed foraging in the little ponds, with a bar-tailed godwit (lille kobbersneppe) being the rarest species that morning. Dunlins (almindelig ryle) and sanderlings (sandløber) were present as the most numerous species. In addition, up to 11 teals (krikkand) used the beach ponds as well.

1st calender year red knots (islandsk ryle) foraging on the beach

In the afternoon I joined Martin, Judith and Joost for a BioBlitz-event at the observatory. In those biodiversity events, participants try to find as many species within a given time period as possible. For one hour, two families and an observatory team were now trying to collect as many different animal species around the grey lighthouse. Among the animals (or animal parts) found were a fox skull, a mallard (gråand) pelvis, many insects like beetles, dragonflies, hoverflies, true flies, grasshoppers and crickets but also crustaceans, spiders and gastropods. The family teams crushed our observatory team which came on a disappointing last place. The BioBlitz was a really nice experience and seeing a younger generation discovering the biodiversity of life just in front of their house doors was just awesome.

Around 3:30 pm we suddenly experienced a power outage; a quick call gave the information that electricity should be restored by 5 pm. This however did not happen, and we had to wait until after 8 pm to get the power back. The energy company had to bring out a generator to the parking at the observatory to provide us with electricity again. Currently the source of the initial problem is unknown, but it might be related to the storm in the night.

Without any electricity, we couldn’t perform some of our usual activities like using the bird radar or punching data. Instead we went swimming in the sea – which was rather cold today. Our shower water unfortunately joined the fun, as warm water is generated by electric heating, so the shower after the swim was even colder than the bath in the sea.

Cooking is also difficult without electricity, so we had a nice bbq instead. “Good that the electricity went off, otherwise we wouldn’t have this awesome food”, Joost said looking at Martin, who would have been the kitchen chef and responsible for dinner tonight…

People: Simon S. Christiansen, Martin Yordanov Georgiev, Yehonatan Ben Aroia, Christian Stolz, Joost Van Duppen, Judith Kloibhofer

Writing music: Pink Floyd – Wish You Were Here