argentatus Herring Gull wing tips and travels

Remarkable Movements

Martin Garner

It’s what they do, where they go, how far they travel,  the ‘gull narrative’ that adds to the wonder. While Gullfest 2015 is cooking in Vardø and folk visit the mighty Hornøya  Island. Here’s one of those stories.

 

JX347:  Hornøya to South Yorkshire and back again and back again

JX347 having been rung on Hornøya has wintered in South Yorkshire- two years running! As a first winter bird and as a second winter bird- and been well photographed. The variety in young northern argentatus Herring Gull is quiet considerable. This one is not an easy ‘pick-out’ on plumage. And what route did it take to reach the UK? Over the arctic top like this Great Black-backed Gull or through the Baltic? Both are possibilities. Have  look:

First Winter plumage 

(poached from excellent  Barnsley Bird Blog – photo by Steve Denny)

DSCN6894

Second Winter plumage

In Sheffield last month- (photo by Andy Deighton)

shefield 2

 

Thanks to Andy Deighton and Morton Helberg for following:

CR-Code Black ring with white code: JX347 LBM;RBNW(JX347)
Ringing Centre Stavanger Museum (Norway) Ring number 4193850
Species Herring Gull  Larus argentatus
Sex Unknown Age Pullus

Date Place Coordinates Observers Days/km/°
29.06 2013 Hornoya, Vardo, Finnmark, Norway 70°23’16″N 031°09’21″E Lyng, Torben
26.02 2014 Anglers Country Park, Wintersett, West Yorks, Great Britain 53°38’19″N 001°25’56″W Leeman, Brian 242/2464/237
02.03 2014 Wintersett Reservoir , West Yorks, Great Britain 53°37’42″N 001°25’57″W Denny, Steven 246/2465/237
02.03 2014 Wintersett Reservoirs, Great Britain, Great Britain 58°38’00″N 001°26’00″W Denny, Steven 246/1994/245
11.02 2015 Warren Street, Sheffield, South Yorks, Great Britain 53°23’21″N 001°26’41″W Deighton, Andy 592/2489/236

 to compare- a similar 1st winter was photographed at Vardø April 2012:

argy first winter  vardo (1 of 1)

Adult wing tips

Since the early 1980’s these have fascinated me (especially when the local county refused to accept the records!). The most interesting have usually been the ones with reduced black and more white in the wing tips. Some sporting the ‘thayer’ pattern on the outermost primary P10 and even on the penultimate long primary p9. What’s the thayeri pattern? As on an adult Thayer’s Gull, the pale/ white wedge on the inner primary runs right through to th white ‘mirrors’ near the tip and NO black cuts across the feather- as on the typical pattern of most dark winged Large Gulls.

Here is the thayeri pattern from  Banks from 1917- “The Status of Larus thayeri. Thayer’s Gull”

The pattern on the right show the uninterrupted white right through to the wing tip.

 

Thayeri wing tip Banks

 

So here’s some argentatus  with the thayeri pattern

from Gullfest 2013 at Vardø

ad argy white (1 of 1) argentataus adddb (1 of 1) argentataus adddbm (1 of 1) argentatus 1 (1 of 1) argentatus 45a (1 of 1)argentatus adult wing 13 (1 of 1)argentatus adult wing 4 (1 of 1)THAYERI ARGY3 (1 of 1)THAYERI ARGY4 (1 of 1)

not visible this just has thayeri pattern on p9argy wing not used

This one has nice long tongue but no thayeri

THAYERI ARGY6 (1 of 1)

Darker-winged adults

we also found darker winger birds- some with 6 black marked primaries which were intriguing. one of these had been rung further south in the Baltic.

argentatus adult wing 1 (1 of 1) argentatus adult wing 2 (1 of 1) argentatus adult wing 10 (1 of 1) argentatus adult wing 11 (1 of 1)

 

Ringed in Poland 

This next bird was trapped at Vardø already sported ring from Poland. Pink-legged and dark backed it was the darkest winged bird we trapped. 6 black marked primaries including dark band across p5.

argentatus adult wing 12 (1 of 1)

Gdansk ring b (1 of 1) Gdansk ring c (1 of 1)

 

another darker winged bird
dARKER WINGED ARGY2 (1 of 1)

back to those beautiful pale wing tip patternsargentatus c (1 of 1) argentatus extreme a (1 of 1) argy 3 (1 of 1)

How cold? Waiting to explore gulls and ducks…blizz (1 of 1)

 

Colourful ducks

with rubbery looking fish lips and amazing plumage tones- in both males and femalesstelers onee (1 of 1) fem steller's e (1 of 1)

and King DucksKing eiders (1 of 1)

and pretty smaller gulls

whose wing tip patterns we are exploring…

Kittiwake ne (1 of 1)

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