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Topic: Black throated Diver

	Black-throated Diver
		One of the most remarkable circumstances relative to this beautiful bird, which is intermediate between the Red-throated Diver and the Loon, is the extraordinary extent to which the wanderings of the young are carried in autumn and winter.
		It breeds in the remote regions of the north, from which many of the old birds, it would seem, do not remove far, while the young, as soon as they are able to travel, take to wing and disperse, spreading not only over the greater part of the United States, but beyond their south-western limits.
		The upper parts are glossy fl, tinged with green anteriorly, and shaded with brown behind.
	www.audubon.org /bird/BoA/F45_G1b.html (1206 words)

	Diver - LoveToKnow 1911
		The abortion of the rectrices in the gerbes, while these feathers are fairly developed in the divers, is another point that helps to separate the two Families.
		The commonest species of Colymbus is C. septentrionalis, known as the red-throated diver from an elongated patch of dark bay which distinguishes the throat of the adult in summer dress.
		Still bigger is the great northern diver, C. glacialis or torquatus, with a glossy fl head and neck, two semicollars of white and fl vertical stripes, and nearly the whole of the fl back and upper surface of the wings beautifully marked with white spots, varying in size and arranged in belts.
	www.1911encyclopedia.org /Diver (596 words)

	Black Throated Diver
		The overall impression was of a contrast bird, fl above and white below with a long, low body profile and a white rear flank patch which, due to the rough water state was most noticeable when the bird either dived or when the birds body was lifted up on a wave.
		Head+Neck : Due to the nature of the strong wind/choppy water, the bird was forced to tilt it's head at an angle, upwards, not unlike a R.T. Diver, however, the bill was straight and slender with a darker upper mandible, contrasting slightly with the greyer lower mandible.
		The headshape was nicely domed and the head and neck were contrast fl and white, the division of which was below the level of the eye and sharply demarcated.
	www.eastlancsbirding.co.uk /main/bltdiverstocks00article.htm (354 words)

	Inland Waters: The Black-Throated Diver - Swedish EPA (Site not responding. Last check: )
		It is quite something on a still morning to see a fl-throated diver slowing swimming across a shining mirror of water while the last threads of mist dissolve in the rays of the rising sun.
		During the nesting season the fl-throated diver is easy to recognise by its smooth satiny grey head and gently rounded neck.
		Its neck and throat are jet fl; the sides of its neck have fl and white stripes and its back is chequered fl and white.
	www.internat.environ.se /documents/nature/nacatego/inlwat/moreinf/diver.htm (358 words)

	Caithness CWS - Front Page Bulletins - April 2004 - Liam Henderson
		Black-throated divers nest on small islands in lochs, or on the loch shore and around 30% of these nests fail annually due to fluctuating water levels.
		Divers also produce very small numbers of young, so any lack of breeding success can have a significant impact on the overall population.
		Confirming the SNH grant, development officer, Ian Mitchell, said: "The fl-throated diver is a particularly rare and vulnerable bird and an important part of Scotland's biodiversity.
	www.caithness.org /fpb/april2004/blackthroateddiver (443 words)

	Black Throated Diver
		The upper parts of The Black Throated Diver's oval shaped body are glossy fl, tinted slightly green near the tail and shaded with brown.
		The color of the neck is a combination of plum and fl with some white spots and when in flight you see a dusky coloring on the under sides of its small wings.
		Black Throated Divers has a speedy, powerful flight and when in the air flaps its wings constantly and stretches its neck forward and feet straight back.
	www.suite101.com /article.cfm/birding/84758 (463 words)

	Black-throated Diver
		The Black-throated Divers sommercoat is on the upperparts fl but with a bluecoloured tinge.
		The Diver walk very badly because of the feet placement and therefore the Diver build its nest very close to the water on a islet or a mound in the lake, so its possible for the Diver just to worm its way to the nest.
		During the wintering the Diver is very often seen flying along the Danish cost.
	www.gamehuntersguide.com /Encyclopedia/Animals/Birds/Divers/Black-throated%20Diver.htm (250 words)

	The Red-throated Diver
		The Red-throated Diver is found, in tolerable abundance, on the sea-coast of the United States during autumn, winter, and early spring, from Maryland to the extremities of Maine.
		The Divers, moreover, live on the sea during the greater part of the year, and resort to ponds, lakes, or the borders of rivers to breed; whilst the Grebes spend most of their time on inland lakes, marshes, and streams.
		Fore part and sides of the head, throat, and sides of the neck, of a fine bluish-grey; fore part of the neck rich brownish-red; hind part of the head and hind neck longitudinally streaked with greenish-fl and pure white, each feather fl in the middle, with the sides white, the colours disposed in lines.
	www.audubon.org /bird/BoA/F45_G1c.html (2509 words)

	Black-throated Diver - Definition, explanation
		Black-throated Diver, known in North America as Arctic Loon (Gavia arctica), is a medium-sized member of the loon or diver family.
		Non-breeding plumage is drabber with the chin and foreneck white.
		This species, like all divers, is a specialist fish-eater, catching its prey underwater.
	www.calsky.com /lexikon/en/txt/b/bl/black_throated_diver.php (167 words)

	Natural Born Birder - Skogsøy - Black-throated Diver
		This species is the least common of the divers seen at Skogsøy with barely a handful recorded during most years.
		It is obvious that the Norwegian population (estimated at 5000-10000 pairs) arrives using a completely different route than Red-throated Diver.
		In common with the other diver species the best numbers seen during headwinds.
	www.naturalbornbirder.com /skogsoey/species/btdiver.php (198 words)

	[No title]
		Eggs from Red-throated Diver in an acidified area in SW Sweden had significant higher levels of mercury (mean 7.0 ug/g d.w.) than divers breeding in central Sweden (mean 2.7 ug/g d.w.).
		Divers nests are on average situated 40 cm from wateredge and the eggs 7.5 cm above water level.
		David Okill, Helinabretta, Trondra, Shetland ZE1 0XL, UK The bulk of the Red-throated Diver (RTD) population in Britain is concentrated in the North Isles, although pairs are scattered through the north-west of Scotland and the Western Isles, with a handful in Ireland.
	www.briloon.org /bri/workinggroups/DiverNL3.doc (1965 words)

	Dawlish Warren: Latest Bird Sightings
		From the hide 40 Sandwich Tern could be seen settled on the mudflats with 20 Dunlin, 2 Grey Plover; a juvenile Ringed Plover and a Redshank with 325 Curlew and a Whimbrel on the Railway Saltmarsh.
		The Black-throated Diver was still offshore with six Great-crested Grebe, 80 Gannet, 50 Kittiwake, 32 Common Scoter and a Guillemot.
		A Black Swan with 33 Canada Geese was the first of the year to travel from the local Dawlish population.
	www.dawlishwarren.co.uk /birdjune05.html (1359 words)

	The Black-throated Diver
		Breeds in N Europe and Scotland on lakes and lochs with deep, clearwater and fish; rarely at coast.
		Character in summer are fl throat and chin and pale grey crown.
		In winter plumage, back is dark grey; on swimming birds a white patch is often visible on rear of body at the water line.
	www.virtualhebrides.com /articles/birds/Black-throatedDiver.htm (140 words)

	Wildlife - Black-throated Diver
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		In summer, unmistakable with blue-grey head and nape, fl throat and fl and white stripes on side of neck.
		Belly and underparts white, wings and upperparts fl with chequerboard of white spots on back.
	www.tiscali.co.uk /reference/encyclopaedia/wildlife/birds_black-throated_diver.html (181 words)

	Untitled Document
		Red throated and Black throated Divers breed inland but move to the coast in autumn and winter to moult.
		Divers are generally found in shallow coastal waters, often foraging further from the shore than most seaduck, particularly in areas of extensive inshore shallows such as the outer Dornoch Firth.
		Black throated Divers occur in small concentrations in late winter, favouring more open shores than the Red throated Divers and are found mainly in the outer Dornoch Firth and Burghhead Bay.
	www.morayfirth-partnership.org /mfptreasure/infozone/40.htm (736 words)

	The RSPB: Red-throated diver
		The smallest of the UK's divers, its grey-brown plumage and up-tilted bill readily distinguish it from the other species.
		In summer it has a distinctive red throat.
		They usually jump up to dive and can stay underwater for a minute and a half.
	www.rspb.org.uk /birds/guide/r/redthroateddiver/index.asp (500 words)

	Birds
		This bird is an expert diver, and spends all its time on the water.
		The Black-throated Diver has a dark grey head, and a fl and white speckled body.
		In Britain, the greatest number of Black-throated Divers can be seen during the winter, as many arrive from colder more northerly countries.
	www.naturegrid.org.uk /biodiversity/birds/divers.html (223 words)

	Divers in Hampshire
		Described by BOH as a scarce winter visitor and passage migrant, Red-throated Divers are generally seen between October and May with a peak in December and January and a smaller peak in April coinciding with spring migration.
		Described by BOH as a a very scarce winter visitor and passage migrant, Black-throated Divers are recorded less often than both Red-throated and Great Northern with the number of birds seen in any year often limited to single figures.
		There is only one record of White-billed Diver in Hampshire, an adult identified by J J Garr at Oxey Creek on 14 Feb 1991.
	mysite.wanadoo-members.co.uk /birdsofhants/species/divers.htm (378 words)

	December 2003
		In the west, a Slavonian Grebe was at Fort Victoria on 7th and a Black-throated Diver at Newtown NNR on 31st.
		A little further east a Black-throated Diver was in Fishbourne Channel (presumed same as on 24th), and betweeen there and Ryde Pier there were 12 Great Crested Grebes, a Black-necked Grebe and seven Red-breasted Mergansers, plus 515 Brents on the sands and a Red-throated Diver flew west.
		Another diver and a few auks were still passing (mostly east) in the early afternoon.
	mysite.wanadoo-members.co.uk /wightvogels/dec03.html (3049 words)

	Seabird Osteology Skulls Divers or Loons
		The Great Northern and the White-billed Diver, both the larger of this group, are more or less similar in appearance by their plumages, fl headed and intensively spotted white on the backs in summer and greyish in their juvenile and winter plumage.
		The main difference is formed by their large bills which are straight and fl in the Great Northern and yellowish white and somewhat 'upturned' in the White-billed.
		The Red-throated Diver is the smallest of all, but also a grey-headed with - as the name says - a red throat in summer.
	www.shearwater.nl /seabird-osteology/divers_or_loons.htm (399 words)

	Black Throated Diver (Wild Birds)
		Black Throated Diver, known in North America as Arctic Loon (Gavia arctica), is a medium-sized member of the loon or diver family.
		Breeding adults are 63 cm to 75 cm in length with a 100 cm to 122 cm wingspan, shaped like a smaller, sleeker version of the Great Northern Diver.
		They have a grey head, fl throat, white underparts and chequered fl-and-white mantle.
	birds.allaboutthese.org /black-throated-diver-wild-birds (179 words)

	Divers
		The fl throated diver is 60-70 cm long, between the wings 110-130 cm.
		In the summer its head is grey and fl and white under.
		The red-throated diver is the smallest of the divers, also called loons.
	homepage.mac.com /lsippu/PhotoAlbum15.html (327 words)

	Great Northern Divers in Lowestoft
		This individual stayed from January 10 to April 2 and was said to be "the most watched Suffolk diver for many years".
		The next was seen from a North Sea ferry off Felixstowe, January 5, 1978; and the third, a bird in breeding plumage, flew south past Southwold, November 6, 1994.
		First they were grasped by the legs, before being flicked sharply to the side resulting in the diver holding a beak full of limbs.
	home.clara.net /ammodytes/gndiver.html (569 words)

	mikebirdart - black-throated diver
		Continuing my new theme of more realistic birds on water, this work is done entirely with a brush.
		Catching a typical wary pose, the Black-throated Diver is probably my favourite bird to watch.
		One of the Highlands' most inspiring species, the summer-plumaged Black-throated Diver is a joy to paint.
	basic1.easily.co.uk /05700B/044004/btdiver.html (122 words)

	DEVW Annual Report 2001
		The two sightings in the first part of the year from within the estuary mouth are excellent records.]
		[ Not only is this the rarest diver to be seen off the Wirral coast but it is also the scarcest of the common three around Britain.
		This is the first record for the wardens, although they have been noted previously off Red Rocks.
	www.deeestuary.co.uk /dev1.htm (725 words)

	SBSG - Photographs and Info (Site not responding. Last check: )
		Black-throated Diver is a very scarce visitor to the Sheffield recording area.
		The next was not until November 2001, when one was located at Redmires less than an hour before dark on 5th November.
		Unfortunately the event was witnessed by only a handful of observers [literally five or six people] as both divers were gone just after first light the next morning.
	www.sbsg.pwp.blueyonder.co.uk /btdiver.html (186 words)

	BirdForum - Black-throated diver?
		Is this a Black-throated diver?, I spotted it yesterday afternoon on the River colne at Brightlingsea
		Black-Throated diver still present this afternoon on the River Colne at Brightlingsea at 15.14-15.50 about 1/2 a mile east of Fingringhoe Wick NR Regards Bish.
		Black-Throated diver still present this afternoon on the River Colne at Brightlingsea at 15.14-15.50 about 1/2 a mile east of Fingringhohoe Wick NR Regards Bish.
	www.birdforum.net /showthread.php?goto=newpost&t=71398 (511 words)

	Portland Bird Observatory - latest news April 2006
		Elsewhere quality was provided by a Black Redstart, a Firecrest and another Brambling at Southwell, and a Ring Ouzel and a Siskin amongst plenty more commoner migrants at Barelycrates Lane.
		By virtue of the lack of a white wing-panel and worn brown flight feathers/coverts the Southwell Black Redstart can be rather easily aged in the field as a first-summer.
		Sea passage consisted of 23 Manx Shearwaters, 6 Red-throated Divers, 4 Common Scoter and a Curlew passing the Bill, where 25 Common Scoter were still settled offshore and 2 Puffins passed back and forth a few times early in the morning.
	www.btinternet.com /~portlandbirdobs/latest_apr2006.htm (4110 words)

	Portland Bird Observatory - latest news December 2005
		Elsewhere there were 2 Black Redstarts at Mutton Cove, 2 Common Buzzards, a Purple Sandpiper and a Blackcap at the Bill and a single Red-throated Diver passed through on the sea off the Bill.
		Portland Harbour held 4 Black-necked Grebes, a Black-throated Diver and a Great Northern Diver, whilst after dark a Barn Owl was seen beside the Beach Road in the vicinity of the oil tanks.
		The only news was of seawatching at the Bill where a Red-throated Diver and a Pomarine Skua passed through and Fulmars, Gannets, Kittiwakes and auks were also on the move in good numbers; 60 Common and a single Velvet Scoter were still settled offshore.
	www.portlandbirdobs.btinternet.co.uk /latest_dec2005.htm (2461 words)

	Ornis Svecica - Mercury exposure to Red-throated Divers [Gavia stellata] and Black-throated Divers [Gavia arctica] in ... (Site not responding. Last check: )
		We investigated concentration of mercury in eggs of Redthroated Diver [Gavia stellata] and Black-throated Diver [Gavia arctica] collected in South and Central Sweden, 1981-1997.
		In Central Sweden (Svealand), the concentration in Red-throated Diver eggs (3.04 ppm dry weight, 8 pairs) was significantly lower than in South Sweden, but still higher than in Blackthroated Diver eggs (1.21 ppm dry weight, 5 pairs).
		We recommend that mercury concentration of diver eggs should be further monitored, with reference to the risks of increased exposure, related to leakage from terrestrial deposits of air-borne transmissions to freshwater habitats.
	www.eurobirding.com /birdingmagazines/artinfo.php?id=7886 (434 words)

	Brontë Sources, Texts, and Criticism
		THIS bird is somewhat larger than the Red-Throated Diver, from which it differs in plumage.
		The Black-throated Diver, like the preceding, is common in all the Arctic regions, and but rarely visits England.
		It has the same disagreeable cries, which, in both kinds, are believed by the natives of Norway, the Orkney Isles, andc.
	faculty.plattsburgh.edu /peter.friesen/default.asp?go=770 (161 words)

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