heuglins&barabagulls

15 sep 2009	(scroll down - PAGE LOADS FROM TOP TO TOE) 39		<RETURN to GULL MAINPAGE
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Heuglin's - & Baraba Gulls
- Jon Hornbuckle & Norman Deans van Swelm -
Heuglin's Gull Larus heuglini heuglini and Baraba Gull Larus heuglini barabensis cannot, at this moment in time, be told apart by DNA analyses but the human eye can! Heuglin's breeds along the arctic coast of Russia from Kanin in the West to the Pechora delta in the East while Baraba gull breeds in SE Russia and Kazakhstan. Both have evolved from Caspian Gull which can still be seen in birds with a weakly developed gonydal angle on rather long bills however birds with a more developed gonys exist. Some prefer to lump heuglini with Larus fuscus fuscus from the Baltic another descendant of Caspian Gull. Baraba Gulls are on average smaller, shorter legged than Heuglin's Gull and have paler mantle's. In Heuglin's Gull a cline exists in which the mantle colour becomes darker from West to East. At a distance the latter may look as dark as L.fuscus fuscus in bright light. Jon Hornbuckle kindly gave us permission to use the pictures of Heuglin's Gull he took in Aden in January 2007.

Heuglin's Gull Larus Heuglini 1st winter Jan.2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull 2nd winter in flight Jan.2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull 2nd winter Jan.2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull 2nd winter Jan.2007 Aden,Yemen c Jon Hornbuckle

Heuglin's Gull 2nd winter Jan.2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull ad Jan.2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull ad in flight Jan.2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull ad moulting PP's Jan 2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull imm. in flight Jan 2007 Aden, Yemen c Jon Hornbuckle

Heuglin's Gull Larus h.heuglini in flight 19062006 Rotterdam, The Netherlands

Heuglin's Gull Larus heuglini 2CY 19062006 Rotterdam, The Netherlands

Heuglin's Gull L.heuglini 2CY 19062006 Rotterdam, The Netherlands

Heuglin's Gull Larus Heuglini 1CY 14092007 Stellendam, The Netherlands

Heuglins' Gull Larus H. Heuglini ad. 23 Oct.2000 Bahrain

Heuglin's Gull L. Heuglini 1W 23 Oct. 2000 Bahrain

Heuglin's Gull L.heuglini 1W 29102005 Westkapelle, The Netherlands

L.f.heuglini 1W 29102005 Westkapelle 6a front

Heuglin's Gull Larus h.heuglini 2CY 13092009 Port of Rotterdam c Norman Deans van Swelm

heuglinsbarabagulls/xHeuglin's Gull Larus h.heuglini 2CY 13092009 5891 Port of Rotterdam c Norman Deans van Swelm.jpg

Heuglin's Gull Larus h.heuglini 2CY 13092009 5891 Port of Rotterdam c Norman Deans van Swelm

Heuglin's Gull Larus h.heuglini 2CY 13092009 5892 Port of Rotterdam c Norman Deans van Swelm

Heuglin's Gull Pechora delta coll. Dr.Pelle Harild-Andersen

Heuglin's Gull Larus h.heuglini 2CY July Kanin, Russia c Dr.Pranas Mierauskas

Norman D. van Swelm - Baraba gulls

heuglinsbarabagulls/01L.h.barabensis ad. and 1W L.h.heuglini ad Oct.2000 Bahrain.jpg

Baraba Gull L. H. Barabensis ad. and 1W + Heuglin's gull L.h.heuglini ad 23 Oct 2000 Bahrain

Baraba Gull L. H.Barabensis ad. and 1W 23 Oct 2000 Bahrain

Baraba Gull L.h.barabensis 1CY wings up 25102000 Bahrain

Baraba Gull L.H.Barabensis ad. dark eyes 23 Oct 2000 Bahrain

Baraba Gull L.h.barabensis 1CY 1 29102000 Bahrain

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Notice:

Two excellent gullstudies i.e. the disertations of Dr's Dorit Liebers and Ronald Klein, can be downloaded as PDF files here:

http://www.greengull.de/

http://www.greengull.de/img/dissertation_rklein.pdf

http://www.greengull.de/img/dissertation_dliebers.pdf

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AND MORE...:

Interesting studies on gull genetics

1. de Knijff P, Denkers F, van Swelm N D, Kuiper M (2001) Genetic affinities within the herring Gull Larus argentatus assemblage revealed by AFLP genotyping. J Mol Evol 52: 85 - 93.

2. Liebers D, Helbig AJ, de Knijff P (2001) Genetic differentiation and phylogeography of gulls in the Larus cachinnans-fuscus group (Aves: Charadriiformes). Mol Ecol 10: 2447 - 2462.

3. Liebers D, Helbig AJ (2002) Phylogeography and colonization history of Lesser Black-backed Gulls (Larus fuscus) as revealed by mtDNA sequences. J
Evol Biol 15: 1021 - 1033.

4. Liebers D, de Knijff P, Helbig AJ (2004) The herring gull complex is not a ring species. Proc R Soc Lon B 271: 893 - 901.

5. de Knijff P, Helbig A J, Liebers D (2005) The Beringian connection: speciation in the Herring Gull assemblage of North America. Birding 37: 402 - 411.