I normally complain when the weather is too nice and wish for a bit if
rain but that is mostly during migration. Now at the end of May when I am
guiding it would be nice with some warmer and drier weather so that birds are
active and singing and it is nice to be out. Yesterday was not such a day. We
had showers in the morning that turned into constant rain in the afternoon and
with the thermometer only showing 10C it was pretty cold. BUT Eva and Letty from
Californian were still treated to a really good bird day as almost all the
birds showed as they were asked to do.
Fornebu gave the only disappointment with the Red-backed Shrikes (tornskate)
not to be found and a lack of other observations since I had the pair suggests
that they may have moved on to breed. We did have a near complete sweep of
warblers here though including Marsh (myrsanger) and a few waders included both
Ringed (sandlo) and Little Ringed Plover (dverglo). A new sighting for me was
watching a pair of Swifts (tårnseiler) mating on the wing which looked to
require a level of precision that the US military would be proud of.
At Østensjøvannet the Corncrake (åkerrikse) was the first bird we heard
even though we arrived just before noon but it failed to show itself. In the
rain the lake had lots of swallows feeding low over the water and they were
joined by two Common Terns (makrellterne) but unfortunately nothing rarer. The
lake now holds a huge population of Mute Swans (knoppsvane) with the various
breeding pairs plus many young non-breeding birds that kept being chased from
one breeding pair territory to the other. At least two pairs had cygnets in
tow. I remember when the lake only held one pair and cannot understand what has
caused this population explosion. Coots (sothøne) and Great Crested Grebes (toppdykker)
also had young and Tufted Ducks (toppand) were paired up and looked like they
were searching for nesting sites. Signs that the late spring in the mountains
has delayed migration were a Redshank (rødstilk) and a Yellow Wagtail (gulerle)
feeding out on the lake on the carpets of pond weed.
Maridalen was of course the icing on the cake for a guided tour around
Oslo in May/June. Here we had the Tawny Owls (kattugle), Goshawk (hønsehauk),
Whooper Swans (sangsvane), Black Woodpeckers (svartspett) plus singing Common
Rosefinches (rosenfink), Parrot Crossbills (furukorsnebb) and close encounters
with Goldcrests (fuglekonge) and Nuthatches (spettmeis). Some of the Tawny Owl
youngsters have already left the nest. There was possibly only one left in the
box but we found only one in the trees nearby although this had managed to move
around 20m which is quite a feat for a fluffy creature that cannot yet fly!
At the Black Woodpecker nest a youngster was screeching for food whilst
we arrived. Whilst we waited for an adult to come a female Goldeneye (kvinand)
flew over a couple of times and then amazingly landed at the entrance to the
hole. I’m not sure who got the biggest shock: the Goldeneye or the young
woodpecker but the duck immediately flew off although we did see it flying
around again. It raises the question as to what the duck was doing. I would
have thought she should have laid eggs a long time ago but she clearly hasn’t.
Is she a late breeder, failed on the first attempt and looking for a new site
or perhaps a young bird that is prospecting for nest sites for next year? No
matter what, it highlighted to me what a job these birds have finding nest
sites. If they use a nest box erected on a tree at the waters edge then
presumably they have little problem finding a nest site. However in the absence
of nest boxes they need to use their natural nest site which is old Black
Woodpecker holes. But how do you find these in vast forests? Presumably they
can fly around the forest when Black Woodpeckers are breeding and locate the
nests in the same way as birders by listening for the young. Then all they need
to do is to wait for the woodpeckers to fledge or alternatively remember the
location for next year when hopefully the nest is no longer being used by
woodpeckers (although this particular nest was also used last year by the
woodpeckers). We had to wait nearly half an hour in the rain before the adult
came but had a great show and could see two hungry heads hanging out of the
nest.
Last bird of the day was a breeding Dipper (fossekall) which has its
nest behind a waterfall and gave some truly magic moments as it flew across the
face of the waterfall – definitely something to try to capture on film.
As usual whilst guiding I didn’t prioritise my own photos and with the
rain the best place for the camera was in the bag but I did of course manage a
few shots.
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The Black Woodpecker nest hole with the adult on the tree to the left |
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the adult (in this case female) could easily lose an eye with those bills stabbing at her |
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here we can see food in the adults bill which she had just regurgitated |
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Redshank (rødstilk) at Østensjøvannet which is I think my first record at this site |
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female Yellow Wagtail (gulerle) with a House Martin (taksvale) sneaking into the picture |
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young and still helpless Tawny Owl (kattugle) |
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this female Tufted Duck (toppand) came extremely close to us with her maete. They were being chased by a Coot (sothøne) and seemed to think they wold get loss hassle if they were by us |
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every single nature photographer in Oslo has taken fantastic pictures of Great Crested Grebes at Østensjøvannet over the last few weeks and posted them on Facebook. My best effort won't be posted anywhere other than here ;-) |
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