16 December 2012

European Nightjar in the Eastern Province of Saudi Arabia & Bahrain (Part 2)


European nightjar Caprimulgus europaeus meridionalis, Ventotene, Italy. 2nd May 2010 by ecologyweb creative commons NonCommercial – No Dervis 2.0


Caprimulgus europaeus meridionalis (Hartert, 1896): Breeds in north-west Africa and Iberia east through southern Europe, Crimea, Caucasus and Ukraine to north-west Iran and the Caspian Sea. They move south on a broad front across the Mediterranean and northern parts of the Middle East and North Africa and winter mainly in southern Africa, though small numbers may winter in central or West Africa. In spring, returning birds move north or north-east between March & June, generally returning to their breeding grounds in April & May. Populations are darkest in the west showing a tendency to become paler to the east of their range. Smaller and greyer, slightly paler above than C. e. europaeus, ground colour brighter slivery grey with vermiculations narrower, sharper and paler grey, less brown and narrower (rather than brownish-grey to dull rufous-brown vermiculations) giving more silvery grey appearance with much less distinct and narrower black streaks on centre of crown and on mantle, also less deeply buff below. Males have larger white spots on the primaries with white on P9 very rarely extending to outer web in C. e. europaeus but does so infrequently in C. e. meridonalis and latters throat patches are much smaller than in C. e. europaeus. Some authorities i.e Grant and Mackworth-Praed, have questioned the validity of this form and lump it together with C. e. europaeus.


European Nightjar Caprimulgus europaeus sarudnyi Republic Square, Almaty, Kazakhstan – 20th May 2007 by Isabekov Askar and used with kind permission

European Nightjar Caprimulgus europaeus sarudnyi Green Mubazzarah, Al Ain, United Arab Emirates. 3rd May 2010 by Huw Roberts and used with kind permission

Caprimulgus europaeus sarudnyi (Hartert, 1912): Breeds from Kazakhstan, Caspian Sea eastwards to Kyrgyzstan, Tarbagatai and Altai. They move north-east through the Arabian Peninsula, from late February to May and probably winter mainly in east & south-east Africa. Slightly lighter than europaeus, with lack of rusty tone on head, throat and wings although variable in colour & size being more or less intermediate between C. e. europaeus & C. e. unwini. They are slightly smaller, greyer & less vermiculated than C. e. europaeus in the west of their range becoming progressively more buff-brown towards the east with heavier streaking on the mantle. The male also has very large white spots on the primaries and broad white tail corners with whiter/buffier under-tail coverts, which may be seen when the bird is at rest above ground. The white spots on the primaries of males occur on the inner web of P10 adjoined to the shaft for 1-1.5 cm; on P9 the white spot usually forms a band through both webs (although it is sometimes only forms a small spot on outer web). Females have the first primary from the wing-tip with a rusty-buffy spot on inner web of P9 which is much larger and brighter than remaining ones. They are slightly larger in size than C. e. unwini but much the same with relation to primary spots and lower throat-patches but with the plumage colour of C. e. meridionalis or C. e. europaeus and often with more buff brown tinge. Some authorities i.e. Vaurie question the validity of this form and lump it together with C. e. europaeus.


European Nightjar Caprimulgus europaeus unwini, Emirates Palace Hotel grounds, Abu Dhabi, United Arab Emirates. 27th November 2010 by Huw Roberts and used with kind permission


European Nightjar Caprimulgus europaeus unwini Jodhpur, Rajasthan, India - August 2011 by Nikhil Devasar and used with his kind permission.


European Nightjar Caprimulgus europaeus unwini Merke, Merke Region, Zhambyl oblast, Kazakhstan – 30th June 2007 by Isabekov Askar and used with kind permission

Caprimulgus europaeus unwini (Hume, 1871): Breeds in Iraq and Iran to Turkmenistan and Uzbekistan. They leave their breeding grounds in August & September and move south-east on a broad front across the Middle-East and winter mainly in east & south-east Africa, although small numbers occasionally overwinter in Israel, Pakistan and possibly north-west India. Its return route in spring is apparently further north, explaining why the subspecies is only seen in the autumn in the Eastern Province of Saudi Arabia & Bahrain. General appearance is of a pale, sandy, often light grey and not very vermiculated bird. Smaller, paler & greyer than C. e. europaeus and slightly smaller than C. e. sarudnyi with the general colour of the upper-parts sandy grey with poorly vermiculated grey and much less heavily streaked black. The lower throat patches usually conspicuous, larger and whiter than in preceding subspecies, often with pale hind collar. The tail corners have larger white areas than C. e. europaeus with the under-tail coverts pale cream and virtually unbarred. In males the white spots on the primaries are larger and on P9 they always form a broad band across both webs, and on P8 it also extends well across the shaft to invade the outer web, whereas they very rarely do so in C. e. meridionalis and nominate C. e. europaeus. The tail has distinct and strong barring with the tail-feathers grey with a considerable amount of buff on the basal portions, with ill-defined wavy bars of black and with broken black marks in between the bars and the under-tail coverts are usually more sparingly barred with brown.


European Nightjar Caprimulgus europaeus plumipes Republic Square, Almaty, Kazakhstan – 16th September 2006 by Isabekov Askar and used with kind permission

Caprimulgus europaeus plumipes (Przewalski, 1876); Breeds north-west China to western & southern Mongolia. They move south-west on a broad front and winter mainly in south-east Africa. This is a large pale, approaching C. e. europaeus in size, light-buff or sandy looking nightjar as pale as C. e. unwini, but ground-colour cinnamon-buff rather than grey; uniform spots on tips of scapulars, tertials, median upper wing-coverts, and chest larger than in other races, pale pink-buff or cream; light bars on inner webs of primaries and secondaries broader; dark bars on central tail feathers are narrow and not so dark, as on other races with bars on tail narrower, virtually absent on t1. Dark streaking on head and mantle is faint and barely noticeable; light spots on scapulars and wing coverts are buffy and barely noticeable against background. Primaries with wide rusty cross-spots on both webs, on inner web they reach or nearly reach the shaft, with males having very large white spots on the primaries. Tarsus almost completely feathered much more so than other races.

Caprimulgus europaeus dementievi (Stegmann, 1949): Breeds from north-east Mongolia to southern-central Siberia, probably also winter in east & south-east Africa. They are rather pale, but more greyish and more heavily vermiculated than C. e. plumipes and C. e. unwini; ground-colour of under-parts more yellowish-loam than in C. e. unwini with less barred tail feathers than other subspecies. Some authorities question the validity of this form.

Please note the following very valid comment from Askar Isabekov of Kazakhstan (pers comm) C. e. plumipes and C. e. unwini are well distinguished by their plumage features but C. e. europaeus and C. e. sarudnyi are very similar and difficult to assign unless trapped and seen in the hand. As a result the photographs of C. e. europaeus and C. e. sarudnyi shown here away from their breeding ranges are best assigned as probably of that race.

I very much appreciate the permission of the various photographers, Pete Morris, Brendan Kavanagh, Bob Roberts, Huw Roberts, Isabekov Askar & Nikhil Devasar to allow me to use their photographs here. Please note that the photographs used remain the copyright of the original photographers and use of them can only be made after obtaining permission from the relevant person.

15 December 2012

European Nightjar in the Eastern Province of Saudi Arabia & Bahrain (Part 1)

The European Nightjar’s Caprimulgus europaeus global distribution lies in the Palearctic where it breeds from North Africa and Western Europe, widely across temperate regions of Eurasia as far as central Asia and western China. Geographical variation is marked with largest birds being Caprimulgus europaeus europaeus in the northern part of their range, from Scandinavia through Siberia taiga to Lake Baikal and the smallest being Caprimulgus europaeus meridionalis from North Africa, Greece & Turkey and Caprimulgus europaeus unwini from eastern Iraq & Iran to Pakistan. It should also be borne in mind that juvenile birds are distinctly smaller and paler than the adults of the same race. As the European Nightjar is a highly migratory species and birds leave temperate breeding areas to overwinter in Africa, where they are widely distributed south of the Sahara, they should pass through the Eastern Province of Saudi Arabia & Bahrain as they will overfly the region on their typical migration routes. The European Nightjar is an uncommon passage migrant to the Eastern Province of Saudi Arabia, mainly seen in April to May and September to November, but due to the crepuscular nature of the species, its cryptic plumage and its secretive behaviour many more birds will pass through the region than are seen. Larger numbers are seen in the spring than the autumn although records are over a longer period in autumn than spring. A number of winter records from Arabia, mainly the United Arab Emirates, suggest the species may winter in small numbers in the south of the region, although care has to be taken to ensure birds seen are this species and not Egyptian Nightjar Caprimulgus aegyptius which has also started to occur in winter in recent years in the region. There is one winter record from the Eastern Province of a bird found freshly dead at Khafrah Marsh on 29 January, 1999 which although not confirmed to race was assigned as a pale ‘unwini’ type (Brian Meadows pers comm). Another not particularly pale bird was found as a freshly dead road casualty on 3 March, 2000 near Qatif, which may have overwintered or possibly more likely was an early migrant as The Birds of Israel (Shirihai 1996) mentions an early vanguard in March while Birds of UAE (Richardson l990) indicates early migrants occur before the main April-May passage.

The European Nightjar is polytypic with six sub-species described (see below) and much of the geographical variation in plumage and colouration clinal in nature often making it very difficult to identify to race in the field. Typical individuals, should generally be identifiable by size, general colour and extent of white on outer primaries of adult males. Although it is sometimes difficult to identify individual birds to race, two distinct types occur; a larger, darker, well vermiculated type C. e. europaeus possibly including C. e. meridionalis and a smaller, paler, greyer or sandier, less vermiculated type C. e. unwini & Caprimulgus europaeus sarudnyi. Birds seen at the start of the main migration periods are normally the first type whilst later birds can be from either group. It is also worth looking out for the sandy coloured and Egyptian Nightjar like Caprimulgus europaeus plumipes, which has not been recorded in Saudi Arabia but which should occur in our region, with these birds being fairly distinct. If a female or first year male of this race is seen, without white spots on the primaries, and good views are not obtained then this subspecies could easily be overlooked.

European Nightjar Caprimulgus europaeus europaeus Hickling Broad, Norfolk, England – 26th August 2010 by Pete Morris and used with kind permission


European Nightjar, Caprimulgus europaeus europaeus Bahrain, spring 2012 used with kind permission of Brendan Kavanagh


European Nightjar Caprimulgus europaeus europaeus (slightly greyer bird) Dhahran, Eastern Province, Saudi Arabia – 22nd April 2011


European Nightjar Caprimulgus europaeus europaeus (slightly greyer bird) Dammam Seafront, Eastern Province, Saudi Arabia – 21st September 2009 by Bob Roberts and used with kind permission


European Nightjar, pale individual Caprimulgus europaeus europaeus (greyer eastern bird) Emirates Palace Hotel grounds, Abu Dhabi, United Arab Emirates. 27th November 2010 by Huw Roberts and used with kind permission


Caprimulgus europaeus europaeus (Linnaeus, 1758): Breeds in north & central Europe eastwards through north-central Asia (mainly south of c. 60° N) to the Lake Baikal region and winters in east and southern Africa. Large dark, sometimes grey toned nightjar being the largest and darkest of all the subspecies. They leave their breeding grounds in late July to November (mainly late August to October) with western populations moving south on a broad front through the Middle East (mid-August to early December) and winter mainly in east & south Africa. In spring, returning birds move north or north-east between March & June, generally returning to their breeding grounds in April & May. The darkest and largest race with the general colour of upper parts being dark-brown with black strips that are broad and brown bordered although the plumage colour gets greyer to the east of their range and birds also get smaller in size southwards. They are the most vermiculated and have the most restricted white spots in the wing of male birds of all the subspecies occurring. Males have a white spot on the inner web of P10 which is rounded and doesn’t extend or barely touches the shaft, whereas on P9 the white spot doesn’t pass or barely passes onto the outer web. Females have a buffy spot on inner webs of P10-9 which barely differs from the remaining spots. The British European Nightjar, top photograph above, is markedly dull brownish above & smaller than typical large Scandinavian birds. This type is unlikely to occur in Eastern Saudi Arabia as they migrate from Britain southwards to southern Africa and should not pass through the region. 



14 December 2012

Large numbers of Gulls - Abqaiq Landfill

Phil Roberts and I went to Abqaiq Landfill on Friday morning to see what Large White-headed Gulls (LWHG) we could see. We had not been there previously so arrived just before first light. The gate was open and trucks appeared to be dumping, which was a pleasant surprise, as we thought it may be closed due to Friday being a holiday. We drove onto the dump without any issues at all, although a weigh bridge is positioned just after the entrance gate, and went to the area where the main dumping was being done. There were no gulls to be seen at all, but as it started getting light more and more gulls started appearing. They built up in numbers to well over 1000 birds, but were very timid and took almost an hour of circling around before they started to alight and feed. The Common Black-headed Gulls were the pioneers and first to land but were soon followed by the 200+ LWHG. It was not easy to photograph the birds due to their flighty nature and it was also not easy to wield a 600mm lens inside a car (even if it was a big 4 wheel drive) to get shots of birds in flight. It was not safe to get out of the car as there were plenty of stray dogs as well as large trucks and diggers moving about, but I did managed to get a couple of reasonable shots. The more we get used to the site and where the birds go to rest the better the photos will become. I will be going back here a few times during the winter to see what is about and look for changes to the population levels. This time we saw mainly Steppe Gulls (approximately 80%) and Heuglin’s Gulls (approximately 20%) with a single adult Armenian Gull and three Caspian Gulls. I was hoping to locate a Baltic Gull, as I have not seen this species in Saudi Arabia yet, but saw no sign of any birds resembling this type.
Heuglin's Gull
Heuglin's Gull
Heuglin's Gull
Heuglin's Gull

The Juvenile gull below is a heuglini, which compared to other JWHG in the region, barabensis, cachinnans, armenicus, moults later and are usually at this time of year in complete juvenile plumage with little wear (similar to many Baltic Gulls). There is slight variation though, since some individuals apparently appear with second generation scapulars but no covert moult. However, in this bird there are a few second generation inner median and greater coverts, and seemingly one lesser. One should perhaps be aware of the late moulting barabensis showing how difficult these juvenile birds can be. Jan Jorgenson helped with discussion on the ID of this bird.
Heuglin's Gull - juvenile
Steppe Gull
Steppe Gull
Steppe Gull
Common Black-headed Gull


13 December 2012

Heuglin's & Steppe Gull – Dhahran Camp


Birding has been quite good over the last few days on the ‘patch’ with good numbers of Large White-headed Gulls (LWHG) flying over. Most are Steppe Gulls with a few Heuglin’s Gulls associated with them. Unfortunately they are not currently stopping at the percolation pond to bath at present. Birds on the pond included 137 Mallards, six Eurasian Wigeon and five Gadwall along with the Great Crested Grebe. The spray fields had a Corn Bunting and plenty of Water Pipits and at least one Greater Spotted Eagle is still about. The settling pond had the normal waders but a new Temminck’s Stint was nice to see, the Marsh Sandpiper had returned after being absent for a week and Green Sandpipers had increased to five.
Steppe Gull
Heuglin's Gull

12 December 2012

Ringed Greater Flamingo T/FDT (Dammam / Al Khobar Wader Rosost) – Bird records by Jessar Inocencio


A ringed adult Greater Flamingo was at the Damman / Al Khobar Wader Roost south, Eastern Province of Saudi Arabia, on 6th December 2012 see photograph. The bird had a metal ring on the left leg and a white plastic ring on the right leg with black lettering T/FDT. This is the first time a colour ringed Greater Flamingo has been sighted in Saudi Arabia and the ringing details are as follows:

Greater Flamingo
Ring Number: T/FDT (White plastic with black lettering). Metal Ring F983
Ringing date: 16-08-2009
Ringing Place: Camalti Tuzlasi, Gediz Deltasi - Izmir - Turkey (Co-ords: 38deg 30min 34N 26deg 54min 32E) 

Age: Pullus unble to fly
Ringer: ?
Finding date: 6-December-2012
Finding Place: Dammam / Al Khobar Wader Roost south (Co-ords: 26deg 24min 54N 50deg 11min 18E)

Finding Condition: Bird found alive.
Duration: 1209 days

Distance: 2549 km
Direction: 120 deg (ESE)
Finder: Jessar Inocencio
Greater Flamingo - Ringed T/FDT



Greater Flamingo - Ringed T/FDT







Dunlin
Kentish Plover
Eurasian Curlew
Water Pipit
Water Pipit


11 December 2012

Sinai Rosefinch and Long-legged Buzzard (Tabuk) – Bird records by Viv Wilson

Viv Wilson sent me some very interesting photos from Tabuk that he took at the weekend. One bird is a Sinai Rosefinch, a bird I have yet to see in Saudi Arabia, and one that has not been recorded in the Eastern Province of Saudi Arabia. The Sinai Rosefinch Carpodacus roseus is a breeding resident in the north-west of Saudi Arabia mainly in the Northern Hejaz south to Wadi Sawawin. The location co-ordinates for the Sinai Rosefinch are 28 deg 33 min 12.14 N and 35 deg 44 min 52.95 E. The other bird was a Long-legged Buzzard a bird I have only seen twice in the Eastern Province although they breed in the area. Viv also saw Eurasian Hoopoe, Siberian Stonechat and black Kite and kindly gave me permission to use his excellent photos which are reproduced below.
Sinai Rosefinch
Sinai Rosefinch
Sinai Rosefinch
Long-legged Buzzard
Long-legged Buzzard
Long-legged Buzzard
Long-legged Buzzard
Eurasian Hoopoe
Siberian Stonechat
Black Kite
Black Kite

10 December 2012

Pale Steppe Gull – Al Khobar Corniche

The Al Khobar Corniche site had a hundred plus Large White-headed Gulls (LWHG) of which one was a Caspian Gull Larus cachinnans type. Approximately 5% of the large white-headed gulls in the Eastern Province of Saudi Arabia are Caspian Gulls, which are an uncommon passage migrant and winter visitor. Numbers of Caspian Gulls in the Gulf region are relatively low although they may be overlooked due to their similarity to barabensis although another theory is that cachinnans is not such a strong migratory species and remains in the Caspian Sea area until it starts to get extremely cold and they are forced to move southwards. They then disperse to adjacent countries and only arrive in Saudi Arabia in mid-winter (October to November). The specific identification of taxa within the cline of the Steppe Gull-complex remains difficult, although in August the primary moult of Caspian Gull has replaced 5 – 7 primaries with P10 showing a negligible dark tip. Caspian Gull whose breeding range is the Black Sea, Caspian Sea and Aral Sea probably has a more westwards migration route to the Mediterranean where the majority of birds spend their winter. Some birds join Steppe Gulls Larus barabensis which travel through the breeding areas of cachinnans, on their migration south to the Gulf and spend the winter in the Arabian Peninsula.
Steppe Gull
After discussing this bird with Jan Jorgenson he mentioned it was probably a Steppe Gull Larus barabensis for the following reasons.
No visible pale tongue  on p10 (with a dark sub-terminal mark near the tip, which can be seen in some cachinnans as well), in the far wing, provided that it is p10, which I think it is due to relatively large mirror, which means that the primaries are fully grown. Fine streaking on the back of the head as well as structure. One can argue that the pale yellowish legs are more in line with cachinnans, since barabensis shows more vivid yellow legs - also at this time of year. Some variation is age related though. I would like to thank Jan Jorgenson, AbdulRahmen Al-sirhan and Yoav Perlman for very helpful discussion on the Large White-headed Gulls I have been seeing.

09 December 2012

Heuglin’s Gulls – Al Khobar Corniche


The Al Khobar Corniche site had a hundred plus Large White-headed Gulls (LWHG) of which 17 were Heuglin’s Gulls Larus heuglini. Heuglin’s Gull is relatively common in the Eastern Province of Saudi Arabia, with about 15% of all large white-headed gulls being this taxon, so this gathering had a larger percentage of Heuglin’s Gulls than would be expected. They are an uncommon passage migrant and winter visitor to the Eastern Province of Saudi Arabia with numbers only generally being seen from October and building up during November and December with most birds departing by mid-March. They can be identified by their more aggressive, fierce look and come from the far north compared to Steppe Gull Larus barabensis. Due to their far northern distribution the time juvenile birds are exposed to the desert climate is relatively short and this can be seen with the white notching on the juvenile wing-coverts and the feather tips in general being in better condition (less worn) and the brown parts being less bleached in 2cy heuglini than 2cy barabensis. In March many heuglini are shaggy headed, show neck spots and are still re-growing P10 so are rather different to Steppe Gull. Heuglin’s Gull in adult plumage is not as jet-black as fuscus, but still a darker shade of grey than the widespread Steppe Gull. On geographic grounds, anyone encountering birds with mid to dark grey upperparts in the Middle-East (birds paler than the fuscus but slightly darker than the barabensis that also winter in the region) can be reasonably confident with their identification as Heuglin’s Gull although paler heuglini are more difficult to identify. The separation of immature heuglini from barabensis is far from clear and in many cases it is difficult to demonstrate conclusively that images of heuglini on the wintering grounds are not barabensis. Heuglin’s Gull is currently included with Lesser Black-backed Gull Larus fuscus (polytypic, including fuscus, intermedius, graellsii, heuglini, taimyrensis, barabensis). The below photographs show two adults at the top and a third calendar year bird at the bottom.

08 December 2012

Armenian Gull – Al Khobar Corniche

The Al Khobar Corniche site had a hundred plus Large White-headed Gulls (LWHG) of which only one was an Armenian Gull Larus armenicus. My current theory is less than 1% of the large white-headed gulls in the Eastern Province of Saudi Arabia are Armenian Gulls. This number is still under evaluation as its status is unclear in the area and more detailed study of this flock of LWHG may enable me to come to a more conclusive idea as to its status. Currently it is regarded as a scarce winter visitor to the Eastern Province of Saudi Arabia and can be seen from early October onwards. Armenian Gull has a breeding range in the inland lakes of Armenia, Georgia, eastern Turkey and northwest Iran and winters mainly in the eastern Mediterranean with some spreading to northern Red Sea. It is a common gull in Israel and birds are regularly seen in Kuwait each winter. There are no confirmed records from the United Arab Emirates showing the species becomes scarcer the further south one goes in the Eastern Part of the Arabian Peninsula.