יום שישי, 28 ביוני 2013

6 Owls in Finland, Species of Owls… and a short paraphrase

13-15.6.13 Finally Finland

I arrived to Finland on the 13th of June. After 16 hours of amazing sail from Sweden by ferry. The Ferris route passes through thousands of islands and the view is fascinating. Obviously lots of gulls and Arctic Terns are seen when still few kilometers from the shore.

Moose
אייל קורא

On the first day in Helsinki Roni and I went birding around and check if a nest of Parrot Crossbills is still occupied. It wasn't, but we had lots of luck when encountering two Moose just along the main road, over the fence that prevents too close encounters with them.


The great Finnish trip (report) paraphrase:

On the next day we headed north for a two-week trip all over east and north Finland, including a couple of days in Norway. At this part of our trip we had no idea how will it go.. How lucky we are about to be.
We packed all outdoor, ringing and cooking equipment we could think of, took few liters of mosquito repellent and hoped for good weather and lots of birds. We already new will have luck with mammals because along the road we had second mammalian encounter- with Wild Boars! These huge animals are rare in Finland and were probably coming from the nearby Russia.

Wild Boars
חזירי בר

When birding in Finland you must know what to do, where and when. Without good knowledge the wide forests, the long day (light all through the day) and weather conditions can be unbelievably confusing. I had the great opportunity to travel with one of the best Finnish birders and ringers- Roni Väisänen and his wonderful girlfriend- Annika.

In the next few posts I'll do my best to show some of the birds and views we have seen, describe a bite of what we experienced during these insanely good birding and ringing weeks.

First day, 15th of June, Owls day!
We met Janne Leppänen near Joensuu after a long drive from Helsinki and short sleep at around 8 in the morning. Janne is Roni's friend and is also monitoring a large amount of nest boxes and nests of Owls in the area of Joensuu. Great combination if you ask me. We joined him to check some nest-boxes and visit some Owl species I eagerly wanted to watch.

Now, basic rules must be given at this point. First, never get nearby nesting birds. No matter how badly you want to see them, getting nearby nesting birds when lacking lots of experience (and the needed permits from the authorities) is just stupid and might cause damage. Second, never open a nestbox if you don't own it and know in which stage the breeding is in. third and last, the forests are huge. Incredible amount of luck is needed to find a nest accidentally. If you go out and search for it, please carry proper maps, compass and preferably god GPS. All the trees look the same…

And of the Owls:

First, we went to check a territory of Ural Owl Strix uralensis לילית אורל. The Ural Owl Strix uralensis לילית אורל breeds very early and easier to find during May. It was not in the nest and so none of the chicks. When scanning the trees around, we suddenly saw a huge bird flying. It was it! An adult female (sex told only by the fact it was near the nest) Flying high over our heads. We had to watch it very carefully because this species is known as very aggressive and might attack peoples heads when they are too close to her Chicks. Unfortunately we couldn’t find them so, obviously, ringing was irrelevant. Also light condition in the middle of the forest made it impossible to photograph.

Empty Ural Owl nest
קן ריק של לילית אורל

After a perfect observation for waking up (much better than coffee, said the addicted) we went to ring some Tengmalm's Owls Aegolius funereus כוס חום in few Nest-boxes. In all boxes the female was in, with the chicks, and jumped out shortly after we came by.
We visited five boxes out of 90 Janne is checking every spring, some are monitored for over 20 years by now. We were only enjoying his hard work and ringing these stinky juveniles.
The chicks are מלשלשים every few seconds a very smelly liquid and the ringing can be done only after climbing on trees up and down for most weekends during the spring. Mosquito bites are only the bonus.


Tengmalm's Owls
 Aegolius funereusאמא כוס חום 
Tengmalm's Owls Aegolius funereus כוס חום 








Tengmalm's Owl Chick Aegolius funereus and happy ringer
גוזל כוס חום ומטבעת מאושרת

Mommy Tengmalm's Owls Aegolius funereusאמא כוס חום

Eyes in the back, Tengmalm's Owls Aegolius funereusעיניים בגב, כוס חום 

The Famale was a third calander year bird, it is easy to tell it due to the moult in the outer primaries and the colour and condition of the older feathers.

















For not getting bored, as if it is possible, we went to check a nest of a third species of owl: Short-eared Owl Asio flammeus ינשוף שדות in one of the fields around. The nest location can be found only when working in the field. If looking for it many days can be wasted for nothing. Since the field owner is also ecologist he told Janne about the location. Few weeks ago Janne had visited and ringed the two oldest chicks while few more were too small and some eggs were still incubated.

Mommy Short-eared Owl Asio flammeus
אמא ינשוף שדות
When we came, none was ringed. There were 7 chicks with no rings! How can it be?
Apparently, the oldest chicks leave the nest way before they can fly hand hide nearby, so in case the nest is predated, some will survive.
It's an amazing way to manage breeding on the ground. Combined with the camouflaged feathering and high amount of chicks (9 in total) even a nest in the middle of a field can provide few surviving Owls.


Short-eared Owl Asio flammeus ינשוף שדות


The oldest chick is sometimes 16 days older than the youngest. The size differences are nice to compare.

Short-eared Owl Asio flammeus ינשוף שדות


Great Gray Owl Strix nebulosa לילית אפורה
After all this excitement the others were hungry. I was too exited to notice it but probably also very hungry. We went to have second breakfast at Janne's summer hut, which not very surprisingly, is located in the middle of the forest. We watched the Pied Flycatcher Ficedula hypoleuca from the window and wend "to find the dessert" near his house. I didn't expect it to be so easy, so close, so sweet…

A female Great Gray Owl Strix nebulosa לילית אפורה laying on eggs!!! Since Janne knew the chicks and clearly also the eggs are not yet ready for ringing we moved away very fast and drove to ring some other chicks of GG Owl.




Pygmy Owl Glaucidium passerinum
 כוס גמדי
But before we did that we went to try and locate an impossible species this year, the Pygmy Owl Glaucidium passerinum כוס גמדי. With all species of owls, some years are better than other when it comes to nesting. In some years, they seem to breed very commonly while in other years nests are not found (and, as I said, the forests are huge and finding owls while wandering around is almost impossible).
Janne was walking and whistling the call of a displaying male. Walking and whistling, whistling and calling. After almost half an hour, a horny female answered. We got closer and the female got really puzzled. Janne was continuously whistling and the female answered, not understanding where can be the handsome male. After short time we realized there is more than one calling! There must be a nest.. Longer search led to the finding of the nest, in which we could hear some chicks, and another chick was heard from the tree (same idea like with the Short eared owl). 



We finally went to look for the GG Owl second nest. The nest was much higher and lots of preparations were needed. As you can see, when getting close to the chicks of this beautiful beast the ringer must be protected.















The chicks were quickly ringed and put back in the nest, while the mother was checking every movement and even standing on the edge of the nest, a meter from Janne.

Great Gray Owl Strix nebulosa לילית אפורה


Great Gray Owl Strix nebulosa לילית אפורה
No words will describe the excitement, I'm still sorry for not measuring how widely my eyes were opened, for not counting how many times my jaw had to be lifted from the ground by my hands.    



After two hours of sleep (in the early afternoon but considered as night sleep), during evening birding in the forests and fields around the area, we saw our 6th species of owl: A Long-eared Owl Asio otus ינשוף עצים foraging for food at the edge of the forest.









אין תגובות:

הוסף רשומת תגובה