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 22, 2011

Argentatus Herring Gull in December

 1st Calender 




  1st Calender 


  1st Calender 


  1st Calender 


  1st Calender 


  1st Calender 


  1st Calender 


  2nd Calender 


   2nd Calender


   2nd Calender plus, on balance probably at the end of its second year due to dark eye, largely dark bill. These birds can be tough to age and I have difficulty ruling out a third year bird due to hint of white tips to primaries, the appearance of the tertials etc.


    2nd Calender, based on dark eye, largely dark bill, lack of white spots on primary tip and appearance of wing covert's...


2nd Calender? Note the newly moulted inner tertials, dark eye. The bill is rather pale and there is a suggestion od white primary tips..




3rd Calender? Some of these birds can be tough to age..




 A comparison here between a 2nd calender bird to the fore, with a 1st calender bird at the rear.




 2nd Calender or older? A slightly confusing bird, a little advanced on the mantle and scapulars? Primaries lack white tips and are seconde generation, eye is dark, bill mostly dark. Note the new inner tertial.




 3rd Calender. Not as advanced as the bird below, note the smaller white spots at tips of primaries, pale iris, largely yellowis bill and tertials are all 3rd generation. Not as much moult evident on the wing covert's as yet...


 3rd Calender, median and lesser coverts have been replaced, white spots at tips of primaries, note the yellowish tones on the bill...


 4th Calender. Note the dark flecks on the tertials. In flight showed dark markings on the primary covert's. The bill differs from the adults below, a more extensive and darker, complete band near the tip..




 Adult




  Adult


  Adult


 Adult. A dark eyed individual that has benn around the site for at least two years, this bird never shows a heavily patterned head in winter, rather lightly streaked. The orbital ring is bright red.

Photos here of Argentatus Herring Gulls, aged and captioned, the youngest age at the top and the oldest, adult birds, at the bottom..

1 comment:

Anonymous said...

Very interesting collection! Dirk VG