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

Friday, September 17, 2010

Lesser Black-backed Gulls; 1st Calender; Skeppsbron; 17th September 2010

A large dark bird, most probably a male. Aggressive and the same size as Herring Gull.



Upperwing in flight, the same bird as above...


Underparts in flight, again the same bird as above...


The same bird as above on the water. A very long winged appearance on the water. No second generation feathers apparent...



A small bird, most probably a female. Fresh plumaged with no moult in progress...



A very interesting bird to my eye. A pale type bird. This bird shows advanced moult of the mantle and scapulars, whereas most other individuals of the species on site in this age group have shown predominantly juvenile plumage. The bird also displays pale areas on the upper and lower mandibles on the bill. Just an early bred fledged bird of fuscus origin or something more interesting? Could this be a bird from further east where breeding occurs earlier, do fuscus show advanced moult? Apparently a handful begin to moult as early as the first week in August, though this bird still semms very advanced. I'm struggling to find good reference on moult stratagies of both races online.



Close up of the upperwing at rest. Wing covert's appear very abraded and fresh mantle and scapular feathers obvious. Again this is in sharp contrast to other birds onsite which show no second generation feathers to date.


Fresh plumaged bird which has been around for some weeks, the same bird pictured below. A sharp contrast to the advanced moulting bird above....








Some images from today of first calender Lesser Black Backed Gulls of the baltic race fuscus. Very variable birds as these photo's show. Theres just one individual bothering me, advanced moult apparent. The question is can fuscus show advanced moult before departure to the winter quarters? It would seem so....



1 comment:

Anonymous said...

Very nice pictures of juvenile LBBGs! Cheers /Dirk VG