argenteus (Herring Gulls) in South-west England in Devon

Photographs taken by Nick Rossiter

Shaldon, 3 August 2001, adult with only one foot

Pale mantle, one foot missing, bunched primary tips P8-P10, P6 with broad band.

Shaldon, 3 August 2001, adult perched on boat

Relatively small head, solid bill with fairly steep culmen angle, bunched primary tips P8-P10.

Shaldon, 3 August 2001, adult in flight

Large mirror P10, small mirror P9, P7 and P8 old, P5/P6 moult, P1-P4 new.

Shaldon, 3 August 2001, adult perched

Solid bill, bunched and large primary tips P8-P10.

Shaldon, 21 October 2001, adult with wings open

Thin band P5, P9 quarter grown, P10 with large white mark emerging, one foot missing.

Shaldon, 4 August 2001, wing of dead adult

Large mirror P10, smaller mirror P9, moult P6/P7, P1-P5 new, P5 no black.

Torquay, 22 October 2001, adult and first-winter on quay

Adult with P6-P8 new, still growing P9 and P10, obvious necklace, dark eye spot and nape.

Shaldon, 20 April 2002, adult in flight

Large mirror P10, no mirror P9, heavily indented black triangle on outer primaries, limited black P6, none P5, pale blue- grey mantle

Shaldon, 20 April 2002, adult in flight

Slightly more black than preceding one with thin band on P5, large mirror P10, obvious mirror P9.

Shaldon, 20 April 2002, adult swimming with wings open

Tiny mirror P9, large mirror P10, quite a lot of black with thin band P5 and only slight indentation of black triangle. Possibly 4 summer as some faint darker markings still on carpal.

Shaldon, 20 April 2002, adult swimming

 Bunched primary tips with P9 over P10 and P8 close to P9, clean pale blue-grey mantle, rounded head, fairly heavy bill with orange-red gonydal spot not reaching cutting edge, steep angle at culmen.

Shaldon, 20 April 2002, adult with wings open

White tip to P10, large mirror P9, thin band P5, same bird as above with one foot missing

Shaldon, 20 April 2002, two adults perched, one with wings open

Tip to P10, large mirror P9, large indent to black triangle, spot on outer web of P5. Pale blue-grey mantles.

Shaldon, 20 July 1999, third-summer in flight

Quite a large mirror P10, none P9, P1-P2 new, P3 growing, missing P4, old P5-P10, extensive markings on carpal, tail white

Shaldon, 4 August 2001, wing of dead second summer/third-winter

Small mirror P10, no mirror P9, moult P4/P5, P1-P3 new, more black and less white than in adult.

Shaldon, 20 April 2002, second-summer perched

Short legs, bill only dark for terminal 20%, back and scapulars a clean blue-grey, extensive mottling on coverts.

Torquay, 22 October 2001, second- and first-winter in flight

First-winter showing dusky upper tail coverts, single band on inner wing and obvious pale primary window. Second-winter much paler on upper tail coverts and inner primaries, but with prominent secondary bar, broad tail band and quite a dusky appearance. Bill is extensively pale at base.

Torquay, 22 October 2001, first-winter perched

All black bill, dusky on head and breast, quite a scaley mantle with a ruddy tinge, notched tertials with very slight internal markings.

Shaldon, 3 August 2001, first-summer and juvenile at rest

First-summer very scaley, paler bases to feathers, bill black, head paler but still fairly dusky. Juvenile very dusky with tertials with large white tip and broad notched pale edges.

Teignmouth, 26th August 2000, juvenile at rest

Very dusky over all of body and head, all-black bill, tertials are notched.

Shaldon, 3 August 2001, juvenile in flight from rear,

Fairly narrow dark subterminal tail band, quite mottled on upper tail, no dark greater coverts bar.

Shaldon, 6th August 2001, juvenile perched

Bunched primary tips P8-P10, tertials with large pale notches on edges, heavy all-black bill, typical short legs.

Shaldon, 3 August 2001, juvenile with wings open  

Pale primary panel is obvious, no greater coverts bar on inner wing, very dusky all round, very mottled upper tail, narrow subterminal tail band.

Calls recorded by Nick Rossiter:

Shaldon, Devon, south west England, 3 January 2003 -- .wav format, readable by Windows Media Player. On slow line re-playing the item will remove unevenness.

long call

mew call

alarm call

Comment:

The Devon birds are considered to be typical argenteus. A comparison is given here of these argenteus with cantabricans (Cantabrican Atlantic Yellow Legged Gull) described at Cantabrican .

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© Copyright Nick Rossiter 2001-2003.

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