Alan Dalton post's birding diaries and original artwork from Sweden. Established in 2006, this now long running blog is now a complete overview of my birding experiences. As an artist I greatly enjoy sketching birds in the field and you will find a wide selection of that work here, from fieldwork to finished paintings. I am very passionate about my artwork and try to depict birds in their natural habitat, as I see them in the wild. My artwork is for sale and can be viewed at http://www.alandalton.net/
As regards to my photography, since 2008 I have used a Nikon D90 DSLR camera coupled with a Sigma 150-500mm OS lens for since March 2012 for bird photography, all previous images being digiscoped. Regarding sound recording, I have been usung a Telinga Stereo Dat Mic and parabol to record birds in the field, coupled to a Marrantz 661 digital recorder, a superb piece of kit. Interest in butterflies, dragonflies and damselflies has recently seen the accquisition of a Sigma 150mm macro lens. I hope you enjoy the blog and please feel free to leave comments or contact me at alandltn@gmail.com

Thursday, December 31, 2009

Graellsii/Intermedius Lesser Black Backed Gull?; Skeppsbrön; 31st December 2009

In flight, general impressions are of a rather thickset, chunky bird, not quite what one might expect of the race 'fuscus', the prevelant race in Stockholm...


Size comparison with argentatus Herring Gull, the bird was perhaps 5% smaller than most, but in general looked large. Structurally too the bird seemed chunky, thick across the chest and body with a rather short primary projection that was more akin to argentatus than a fuscus Lesser Black-backed Gull.

Upperparts in flight. Note inner webs on the inner primaries are darkish grey and most especially the tiny mirror on P10, apparently very rare in both Herring and Lesser Black-backed Gull at this age. Also atypical, the tail band is not demarcated, the uppertail and rump mottled.


On the water showing left side. Note scapular tone and obvious dark pin shafts. Light tone suggests Graellsii? Tertials not solidly dark, tips marbled, possibly two fresh feathers here. Note juvenile bill and eye.

Close up up scapulars, coverts, tertials and primaries...


Useful shot showing both the under and upperwing, the bird was not intimidated in any way by argentatus and was at the centre of every feeding frenzy.


Slightly out of focus but useful shot of the underparts in flight.Underwing coverts well marked as one might ecpect of this species.

Again the upper and underwing on show here....


Perhaps the best shot of the upper wing. Primaries fresh, blackish and without white tips. Fresh median covert's noticable here, note also the new generarion greater covert's, brownish grey in tone.


Ont the water, this time showing the right hand side. Note the pale head and breast, relitively lightly built bill without a prominent gonydeal angle...


Returned to obtain shots of this bird today, ignoring a male Black Throated Thrush to do so, am intrigued by this birds presence in Stockholm, as I feel this is not a fuscus type bird. Happily, I managed a range of shots on the water and in flight which should prove useful for furhter scrutiny of the bird. Unfortunatly the bird seems to loathe dry land and no shots of the bird on dry land as a result! A bird of intermedius/graellsii race?
Hope the Black Throated Thrush sticks around lest some people doubt my sanity...






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