Steppe Gull - barabensis(last update:
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Mars Muusse (Netherlands) barabensis 1CY July barabensis 2CY Jan barabensis 3CY June barabensis sub-ad Jan barabensis ad Jan
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2CY barabensis: February
In Bahrain, barabensis in the numerical most common large gull, with about 70% of the birds belonging to this taxon. Below we (Theo & Mars Muusse) summarize some points taken in the field in Bahrain February - March 2001.
Within the group of 1st winters, 4 classes could be determined and this classification is mentioned in the unidentified 2cy gulls as well (see the unIDed first summer section). It remains to be seen whether they all refer to barabensis, or if certain characteristics better apply to other races. We tried to use this classification for forecasting the under-wing colour and inner primary pattern. More on these result will be added later. Especially birds with advanced moult (class. 4.) were sometimes completely different from the class. 1. birds, also in feather pattern and jizz. These examples are still on the unIDed page and may remain unidentified. However, we believe barabensis can show tremendous variation in spring moult strategy and stage. Class.
1: Class.
2: Class.
3: Class.
4: 80+ pictures of "2cy white-headed gulls" in February-March 2001 Although we tried to give a general indication in the 2cy sections of barabensis, cachinnans, heuglini and fuscus, we think many 2cy birds are hard to classify. Actually, considering the current knowledge, it may be best to cluster them as a group, and, with knowledge of 1st winter plumage increasing in future, hope it will be possible that some pictures presented here, will be moved to a section of a certain species/race. We present the pictures as (a rather large page with) mystery photographs. All comments are welcome and will be added/allocated to the pictures. In many thumbnail images on the right hand side, the presented 2cy birds seem to be somewhat intermediate in characteristics between two or even three species. We give our own opinion in the accompanying text. Probably many of the pictures presented are in fact barabensis, but this is exactly the one race we do not know of any detailed articles describing plumages of immatures. Again, as in e.g. heuglini, we found two types a: a large, stout type moulting the wing-coverts and tail in one wave at high pace, resulting in a neat looking bird; and b: smaller individuals, remarkable similar to the ones presented in articles dealing with the most western type of heuglini, from NW Russia and immatures from dumping sites in Finland. (se e.g. the excellent article by V. Rauste in Limicola - in German). They seem to originate from the area around Archangelsk, and that's the name sometimes used in captions. |
Steppe Gull barabensis 2CY, February 27 2001, Manama harbour, Bahrain. |
Steppe Gull barabensis 2CY, February 28 2001, Manama harbour, Bahrain. | ||
Steppe Gull barabensis 2CY, February 28 2001, Manama harbour, Bahrain. | ||
Steppe Gull barabensis 2CY, February 25 2001, Ashkar harbour, Bahrain. | ||
Steppe Gull barabensis 2CY, February 27 2001, Ashkar landfill, Bahrain. | ||
80+ "2CY white-headed gulls" in February-March 2001 | ||
barabensis-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 28 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 26 2001, Sittra parking lot, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 25 2001, Chicken farm, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 28 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 28 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Ashkar harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
barabensis-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
cachinnans-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
cachinnans-type 2CY, February 27 2001, Ashkar harbour, Bahrain. | ||
cachinnans-type 2CY, February 25 2001, Muharraq jetty, Bahrain. | ||
cachinnans-type 2CY, February 28 2001, Manama harbour, Bahrain. | ||
cachinnans-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
cachinnans-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
heuglini-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
heuglini-type 2CY, February 24 2001, Ashkar harbour, Bahrain. | ||
heuglini-type 2CY, February 27 2001, Ashkar harbour, Bahrain. | ||
heuglini-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
heuglini-type 2CY, February 27 2001, Manama harbour, Bahrain. | ||
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