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, August 14, 2015

Baltic Gull; 3rd Calendar showing three moult cycles in primaries

 A third calendar bird present today showing three moult cycles in the primaries. P7-P10 are clearly first generation feathers, pointed tips, faded and worn. These would of been the birds first juvenile primaries. P5-P6 are clearly fresher, rounded feathers from the second moult cycle. P3-P4 have been dropped and the inner P1-P12 represent the newest, freshest feathers in the wing, having just grown out. 
 Note here the moult in the tail, with fresh white feathers breaking the dark tailband. Also the bill is quite like that of an adult. Outer greater coverts have been dropped also. Moult wise, a very complex bird..



Another angle on the wing to view the primaries here...

Shots here of a very interesting bird from Skeppsbron, a 3rd Calendar showing a clear example of three moult cycles in the wing. This bird must of arrested its first juvenile moult at P6, for whatever reason. The third moult cycle has now begun...

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