The sightings and occasional thoughts of an English birder in Oslo
Saturday, 30 July 2022
Birds - finally - and the start of autumn migration
Finally a post on birds although that had not been
my intention!
Yesterday, I checked out my local hairstreaks and
found single egg laying Purple and White-letter and then in the afternoon I
thought I would cycle up into Maridalen to look for butterflies (I was
specifically hoping to see the large fritillaries – silver washed, high brown
and dark green). Well, maybe I was a bit late in the day, in the wrong place or
there aren’t any but I did not see a single fritillary and a ringlet
(gullringvinge) was the only butterfly I saw apart from the ubiquitous whites.
I did end up walking down to the lake though and here I was delighted to find
there are still muddy bays and there were birds! A juvenile male Ruff was a very
big surprise (only my fourth record in the Dale) and an adult Arctic Tern was
only slightly less surprising (they have form for turning up around this time).
Single adult Little Ringed Plovers with single large but not yet independent
young at two locations suggests three pairs have nested successfully (another
pair had large young a few weeks ago) of the upto five that were seen in the
late spring. I saw no Lapwings suggesting they have all cleared off as soon as
the young could fly and there were also only a couple of Common and Green
Sandpipers suggesting they too leave as soon as they can. A Snipe on the
mudlfats looked to be a juvenile but two Greenshanks were adults. This gives me
a lot of hope for what the autumn can bring and already tomorrow evening there is
forecast rain which could force down something interesting.
In addition to obvious autumn migrant waders and
terns there were also a couple of Yellow Wagtail – an adult male and a juvenile
that were definitely together. This is an early record and although they do not
breed in Maridalen they have presumably not come too far.
Ruff (brushane) - fresh scalloped plumage shows it to a bird of the year and its large size made it a male
here with a Snipe (enkeltbekkasin)
young White Wagtail (linerle), adult male Yellow (grey-headed) Wagtail (gulerle) and juvenile Yellow Wagtail
adult (female?) Little Ringed Plover (dverglo) and a juvenile that looked like it could not fly
another adult (also female?) and juvenile about 1.2km away. This juvenile could fly as you see in the next picture but its wings are not yet fully grown
adult Arctic Tern (rødnebbterne)
Black-throated Diver (storlom). The fluctuating water levers have ruined the breeding attempts this year and there were 7 adults on the lake including 2 very close to the shore that I think were hunting for crayfish
adult Greenshank (gluttsnipe)
White-letter Hairstreak (almestjertvinge). This was on the same tree as the day before but is clearly a different and more worn individual to the two I saw then
here it is egg laying underneath a leaf and by a bud
zoomed out
and a Purple Harstreak (eikestjertvinge) that is also egg laying
No comments:
Post a Comment