Hi Jan
Good to hear from you - only recently signed up to Netfugl and still learning how the site works!
My impression is that the majority, perhaps the great majority, of birders in Britain are now comfortable with the ID of this bird as a Slaty-backed Gull. This was especially the case aftr its reappearance later in the winter at Pitsea tip, when a new series of closer photos - plus shots of skins showing variation in mantle tone in 'Birding World' - seemed to settle the main bone of contention.
Several Rarities Committee members have also seen the bird and appear to support it, but of course it remains to be seen whether it will be accepted by both the Rarities Committee and the British Ornithologists' Union's Records Committee as a British first.
Naturally, I hope it will be, but either way the fact that the bird appears to show no problematic feature for Slaty-backed Gull, and nothing clearly indicative of a hybrid origin, should be good enough.
Best wishes
Dominic
Thanks Dominic.
Good discussions on Surfbirds forum and elsewhere and several good pic (two of them here on Netfugl, your own and Steve Arlow´s had me convinced 99,9 % lacking 1% to be on the safe side, if now that could be considered as being on a safe side.
Cheers
JanJ
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Yes, JAN, exciting.
# 1.
In 'Danske Navne', 2008, and SVENSSON treated as species
O. seebohmi, Seebohm's Wheatear / Atlasstenpikker.
To be changed accordingly in NETFUGL?
# 2.
DOMINIC's male (in breeding dress) has a distinct
Yellowish-buff undertail/rump.
This feature is ABSENT in illustrations and texts
in BEAMAN, JONNSON and SVENSSON field guides.
Should be added ?
Kindly Comment.
Great thanks, DOMINIC ........... C.
IOC har stadig ikke seebohmi blandt de opremsede arter, hvilket må skyldes at IOC anser seebohmi, som en race af Oenanthe oenanthe (IOC nævner ikke racer). Og da Netfugl følger IOC, er tiden ikke moden til en ændring på Netfugl.
Med "Danske Navne", 2008 mener du (Carsten) vel Navnegruppens fortegnelse over gruppens navngivning. Heri er seebohmi (modsat Svensson: Collins Bird Guide, 2009) IKKE opført som en ART, idet den står som: Oenanthe (o.) seebohmi, fuldstændig analog med: Oenanthe (o.) leucorhoa.
Det er også min opfattelse at seebohmi af langt de fleste anses som en race, ihvertfald også af forfatterne bag H.B.W.,verdens bedste fuglebog (IMO), hvor man feks. heller ikke regner halophila som art, men som en race af lugens (Klippestenpikker).
I Collins Bird Guide bliver disse tvivlsomme splits altid ledsaget af kommentarer, der for mig tydeliggør at beslutningerne er mere af praktisk natur end gjort udfra en egentlig videnskabelig afvejning.
Carsten, Collins er jo en felthåndbog og det er da praktisk at dele op i en sådan publikation....
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