Good work. I was a touch surprised at your ageing of images 18 (but probably have a lot to learn about moult of armenicus) and 30 of Part 1.
Last edited by Brian S; August 4th, 2010 at 08:04 AM. Reason: spelling
Many thanks for these excellent presentations - very clear and informative. Now adding a gulling trip to Israel to my must-do list!
Excellent - will add a link through my web pages shortly - even if that upsets a few of our politically correct types - under the heading birds and birders don't recognise international boundaries
Bahrain Birding - more than just a blog
The armenicus mentioned by Brian (nr 18) is a first cycle with fresh blackish primaries and worn first gen. coverts apart from a few upper lesser second gen. Terials scapulars a mix of first and second gen. A good match for September.
Indeed. It still has a few juvenile scapulars.
Slide 19 shows a "1st-summer" rather than 2nd-summer armenicus; note the extremely worn, juvenile primaries.
Similarly, slide 20 also shows a "1st-summer" bird as can be told by its juvenile outer primaries, secondaries and tail feathers. New inner primaries are of 2nd-generation type, not 3rd.
Any reason why the armenicus in slide 21 is not a 2nd-winter ? Perhaps you saw the inner primaries ?
Slide 29 shows a 3rd-summer YLGull (4CY), not 2nd-summer. In their 2nd-cycle, YLGulls only very rarely show a white mirror; this bird has two. Note also adult-like inner primaries.
In part 2, the fuscus in slides 17-18 are in (mostly) juvenile rather than 1st-winter plumage.
The fuscus in slide 21 should be labeled 'advanced 1st-winter' rather than 2nd-winter; note that its lesser coverts and outer juvenile greater coverts are still juvenile, indicating that this bird is less than one year old, even though it has undergone extensive moult.
Hope this helps;