Showing posts with label Ortolan Bunting. Show all posts
Showing posts with label Ortolan Bunting. Show all posts

Saturday, 16 June 2012

Swift update.

We're still quite busy with all things survey at the moment as all the spring work comes into it's crucial final stages. Ortolan Buntings are feeding youngsters, which is great news, we ringed a brood of 4 chicks last week and they luckily fledged hours before the farmer cut his grass. I was horrified to wake up to see the farmer had mown in the night. See below the open-topped nest remains. 
 
Ortolan Bunting after mowing, a sorry scene.






The Marsh harriers we have monitored through spring have hatched and look amazingly cute. There is a runt, but I'm sure they'll find enough food to equal things out as the adults are hunting non-stop throughout the day.
Marsh Harrier Circus aeruginosus. Photo; Strahil Peev

Heather has arrived and now work begins to start preparing the nets and net rides ahead of the ringing season; yesterday whilst fixing nets this little gem landed next to me. I was very, very surprised because I've always been told you need to flick-net for Swifts, maybe this one was a stupid individual. Though it was a stunning stupid individual and a very welcome ringing tick. I now know why Seumus told me his fingers were like pin cushions after handling many of them.


Swift - Apus apus
We also finished off the first round of "normal" nest boxes with a brood of Pied flycatcher. Heather also got to grips with a bit of mist netting and caught this known age Tree Sparrow. Ringed here 1 year ago (almost to the day) as a chick. He can now be sexed on his cloacal protuberance.

Heather and Mr Tree Sparrow - Passer montanus
Pied Flycatcher chicks - Ficedula hypoleuca
A few days ago we heard Long-eared Owl chicks near the house and after a short search I found the nest and climbed to it. The result, 3 Long-eared Owlets ringed. 
Long-eared Owl chicks - Asio otus
One of the chicks 8 days on.

Long-eared Owlet in nest - Asio otus

Saturday, 5 May 2012

The Ortolan's return

Many hours have been spent over the past weeks have been spent listening for Ortolan bunting's in suitable habitats around Kvismare. After a preliminary study last year found Ortolan's to still be breeding here. Only around 100 territories still exist in this area of in south-central Sweden, spanning much of Närke and Västmanland. The Ortolan's have declined massively in the past 2 decades and the population in Närke is now a fraction of it's former self. The Ortolan population in northern Sweden however is esitmated to be around 6000 pairs.


Ortolan Bunting (Emberiza hortulana)

 With the Ortolan population decreasing so rapidly across much of northern Europe action is being taken in many areas. Here at Kvismare, we aim mainly to provide suitable breeding areas for the birds. The Bird Observatory and Ornithological Society of Sweden have subsidised farmers in the local area to leave parts of their land unsown next to outcrops of woodland/rocks and in strips at the edges of fields; this is not only to provide the black soils which is a niche for breeding Ortolans', but also to aid the birds feeding habits.

So out and about this week we have now found 3 Singing Ortolan males around the areas where they were seen to breed last year. So far all is looking good and the land still seems suitable. Our aim over the next few weeks is to monitor these birds and distinguish whether they can breed successfully here. We will visit nests and count and measure chicks, undertake feeding counts and study the adults behaviour if/when nesting occurs. We will also make several attempt to catch insects at various points in the survey area to understand more about the Ortolans' needs.

I will update on progress when there is any, but for now we hope for decent weather and plenty of Ortolans'.