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Topic: Northern Harrier

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	Northern Harrier: WhoZoo
		The Northern Harrier is a slender bird with long wings, a long tail, yellow legs, an owl-like facial disk, a conspicuous white rump (that shows easily in flight), and yellow eyes.
		The male Northern Harriers are polygamous, but during the mating seasons the male helps each female separately in her nest.
		The harrier's owl-like facial appearance is due to the presence of "filo feathers" that facilitate acute directional hearing.
	www.whozoo.org /Intro2002/HuongPhan/HTP_NorthernHarrier.html (543 words)

	Northern Harrier
		Harriers mature in 2 - 3 years, but may be able to breed their first year.
		Harriers roost and nest on the ground, often in groups in a traditional location.
		The male Northern Harrier’s courtship flight is a series of dramatic “barrel rolls” over his territory.
	www.peregrinefund.org /Explore_Raptors/hawks/nharrier.html (325 words)

	Northern Harrier
		Tout (1947) described northern harrier as the most common hawk in Lincoln County, stating that it is equally numerous in summer and winter.
		Northern harrier was described as uncommon at Keystone Lake, Keith County during 18 July to 19 August 1977 (Rosche 1977).
		Rising (1974) reported that northern harrier was a low density, local summer resident in tall grasslands, especially near water, in western Kansas.
	www.npwrc.usgs.gov /resource/distr/birds/platte/species/circcyan.htm (361 words)

	Northern Harrier (Site not responding. Last check: 2007-09-19)
		The Northern harrier is an uncommon and local breeding species in the Platte River Valley and rare on the Eastern Plain.
		The reason for the decline in Northern Harrier population is the use of insecticide, DDT in the past and severely reducing the amount of wetlands and marshlands.
		In Nebraska the Northern Harrier is a common resident using the Sandhills as breeding and nesting areas.
	www.suite101.com /article.cfm/birding/70427 (1055 words)

	Effects of Management Practices on Grassland Birds: Northern Harrier
		Northern Harriers breed from central Alaska and western Northwest Territories to southern Quebec and Nova Scotia, south to southern California, northern Texas, central Illinois; and east to New Jersey and Maine (National Geographic Society 1987).
		Northern Harriers prefer relatively open habitats characterized by tall, dense vegetation, and abundant residual vegetation (Duebbert and Lokemoen 1977, Hamerstrom and Kopeny 1981, Apfelbaum and Seelbach 1983, Kantrud and Higgins 1992).
		Northern Harriers arrive on the breeding grounds between late March and early April, and nest from April through July (Hammond and Henry 1949, Stewart 1975, Duebbert and Lokemoen 1977, Linner 1980, Murphy and Ensign 1996, Bildstein and Gollop 1988).
	www.npwrc.usgs.gov /resource/literatr/grasbird/noha/noha.htm (4489 words)

	Northern H
		The northern harrier, Circus cyaneus, was formerly known as the marsh hawk.
		Northern harriers actively hunt for voles and other small mammals and insects such as grasshoppers around the salt water marshes where saltgrass is prevalent.
		Northern harriers are so dependent on voles that one researcher has named them "the hawk that is ruled by a mouse." In the winter months when vole and grasshopper populations are low, northern harriers can be seen catching smaller birds.
	people.westminstercollege.edu /faculty/tharrison/gslplaya99/harrier.htm (916 words)

	[No title]
		The Northern Harrier commonly appears in upper North America, including at the Palo Alto Baylands, during the breeding season, and during the winters they are spotted in the middle U.S., from Kansas to Arizona, into Mexico.
		Northern Harriers are highly territorial especially because their life style is dependent on food availability, which is why they must have a large area to hunt.
		Although the Northern Harrier population is strong in California due to conservation efforts, its population is dwindling in other states in North America such as Minnesota.
	www.stanford.edu /~cbross/CRF03/hawk.html (740 words)

	Northern Harrier Fact Sheet (Site not responding. Last check: 2007-09-19)
		The northern harrier, formerly known as the marsh hawk, hunts primarily on the wing and may cover up to 100 miles per day.
		Northern harriers breed in North America from northern Alaska and Canada south to northern Baja California, Mexico and the southern U. S., except in the southeast.
		Historic populations of northern harriers were considered abundant and widespread.
	www.dec.state.ny.us /website/dfwmr/wildlife/endspec/nohafs.html (506 words)

	Northern Harrier (Site not responding. Last check: 2007-09-19)
		The male Northern Harrier feeds the female while she is sitting on eggs and for 2 weeks after they hatch.
		Male Northern Harriers are pale gray by the age of three.
		In Illinois the Northern Harrier is considered endangered because of the destruction of marshland and prairies.
	www.museum.state.il.us /muslink/prairie/htmls/popups/birds_nharrier.html (310 words)

	Nearctica - Natural History - Birds of Eastern North America - Accipitridae - Northern Harrier (Circus cyaneus)
		Similar Species: The male Northern Harrier is a gray hawk similar to the Sharp-shinned Hawk, Cooper's Hawk, and the Goshawk.
		The crown of the Northern Harrier is not dark and contrasting.
		However the rump of the Northern Harrier female and immature is white.
	www.nearctica.com /birds/hawks/Ccyaneus.htm (296 words)

	Northern Harrier
		Northern Harriers are birds of open country-fields, pastures, grasslands, meadows, and marshes-across North America, Europe, and Asia.
		Northern Harriers fly quite high during migration and present a very different pattern than during the hunting flight.
		Northern Harrier calls can be found on the Bird Songs of the Rocky Mountain States and Provinces.
	www.birds.cornell.edu /BOW/NORHAR (750 words)

	Northern Harrier description
		The name "harrier" is derived from the archaic word "harry" meaning to plunder or sack, in reference to their aerial assault on prey.
		Northern Harriers are slender raptors, with long, narrow wings and long tails.
		Partial to wetlands and open marshes, Northern Harriers were formerly known as "Marsh Hawks." These raptors were blue-listed from 1972-1986 due to the effects of habitat loss and pesticide poisoning.
	www.nps.gov /yuch/Expanded/key_resources/birds/species_descriptions/noha_description.htm (566 words)

	Northern Harrier Species Account - Florida Breeding Bird Atlas (Site not responding. Last check: 2007-09-19)
		The Northern Harrier, formerly named the Marsh Hawk, breeds throughout much of Canada, the western and northwestern United States, and Kentucky, Virginia, and West Virginia.
		Northern harriers feed on rodents, small birds, snakes, frogs, and large insects, which they startle or flush as they slowly quarter back and forth a few feet above the vegetation in old fields, pastures, and marshes (Sprunt 1954).
		In the Big Bend region, Northern Harriers show a definite decrease between May and June and increase again in July and August (Stevenson and Anderson 1994); these birds are termed migrants.
	wildflorida.org /bba/NOHA.htm (277 words)

	Northern Harrier (Site not responding. Last check: 2007-09-19)
		is the Northern harrier (also known as the hen harrier or marsh hawk).
		Unlike most other hawks, this harrier likes to hunt exclusively on the wing -- cruising up to 100 miles a day -- and prefers roosting and nesting on the ground.
		Northern harriers prey on a variety of animals -- predominately small mammals, birds and reptiles -- which they detect with their keen sense of hearing (they are considered the diurnal counterpart of the short-eared owl).
	www.sonic.net /~mk/work/harrier.html (167 words)

	Hawks, Eagles, and Falcons of North Dakota
		The northern harrier, also known as the "marsh hawk", is a hawk of open prairie and wetlands and is common throughout the entire state.
		The male is a pale gray color and the female is predominantly a streaky brown, but both sexes have a white rump patch which is conspicuous in flight.
		The northern harrier breeds from late April to early August and can be seen in North Dakota from April until October.
	www.npwrc.usgs.gov /resource/othrdata/hawks/circcyan.htm (195 words)

	Northern Harrier (Site not responding. Last check: 2007-09-19)
		Although a common migrant in open grassland habitat, the Northern Harrier is listed in Missouri as an Endangered breeding species.
		During the mid-1900s, Northern Harrier populations suffered great losses due to pesticide-related egg shell thinning and losses of wetland nesting habitat (Terres 1987).
		Northern Harriers are common migrants in Missouri from February to May, and again from August to November (Robbins and Easterla 1992).
	www.conservation.state.mo.us /nathis/birds/birdatlas/maintext/0400122.htm (361 words)

	Harrier at exZOOberance!
		Harrier, common name for about 13 species of birds of prey, characterized by long legs, long, broad wings, and an owllike ruff of feathers surrounding the face.
		They are the cinereous harrier, which closely resembles the northern harrier, except that males are barred with rufous on the underparts, and the long-winged harrier, in which males are much darker gray above but otherwise much like the northern harrier.
		The northern harrier is classified as Circus cyaneus, the cinereous harrier as Circus cinereus, and the long-winged harrier as Circus buffoni.
	www.exzooberance.com /virtual%20zoo/they%20fly/harrier/harrier.htm (337 words)

	Harrier (bird) -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-09-19)
		A Harrier is any of several species of diurnal (Click link for more info and facts about birds of prey) birds of prey which fly low over meadows and marshes and hunt or harry small animals or birds (hence their common name).
		Most are in the ((biology) taxonomic group containing one or more species) genus Circus, the scientific name also arising from from the slow circling for prey.
		The American Northern Harrier is also known as the Marsh Hawk.
	www.absoluteastronomy.com /encyclopedia/h/ha/harrier_(bird).htm (496 words)

	Northern harrier Species account
		Breeding Northern Harriers generally inhabit marshlands, wet meadows, and other damp grassland habitats across the northern United States and Canada, but are also occasionally found in upland fields (Bildstein 1988).
		Populations of Northern Harriers have generally declined in the northeastern and midwestern United States throughout the twentieth century, primarily as a result of habitat destruction and the more intensive agricultural use of remaining grasslands (Serrentino and England 1989, Sweet 1991).
		Since 1980, harriers have declined in Canada, three states/provinces, and one strata, while there are increases in one state/province and one strata.
	www.mbr-pwrc.usgs.gov /bbs/grass/a3310.htm (531 words)

	Mika Hawkinen, the Northern Harrier (Site not responding. Last check: 2007-09-19)
		Northern Harriers are part of the Accipitridae family in the order Falconiformes.
		Mika Hawkinen the Northern Harrier has about the most interesting history of all the educational raptors.
		She now displays the beautiful brown plumage of an adult female Harrier versus of the light grey plumage of the male.
	www.raptorsoftherockies.org /bird.asp?id=Mika+Hawkinen (405 words)

	CT DEP: Northern Harrier Fact Sheet
		Identification: The slender-bodied northern harrier has a long tail and wings, yellow legs, owl-like facial discs, a conspicuous white rump patch and yellow eyes.
		What You Can Do: The recovery of the northern harrier in Connecticut depends on the conservation and protection of large areas of inland and coastal marshes, wet meadows, upland heaths and grasslands through land acquisition or landowner agreements.
		Since the nesting activities of the northern harrier are often difficult to survey and monitor, any confirmed nests should be reported to the Wildlife Division to help increase our knowledge of the activities of these birds in Connecticut.
	dep.state.ct.us /burnatr/wildlife/factshts/harrier.htm (695 words)

	Northern Harrier
		They are: loggerhead shrike, Florida grasshopper sparrow, Florida scrub jay, Northern harrier, Merlin, Southeastern American kestrel, burrowing owl, and the...
		UNDATED A list of bird species in Iowa hit hard include king rail, Northern harrier and barn owl _ all three are state endangered.
		In Iowa, species hit hard include the king rail, northern harrier and barn owl, all of which are listed as endangered in the state.
	conservation.mongabay.com /Northern_Harrier.htm (374 words)

	Northern Harrier (Site not responding. Last check: 2007-09-19)
		The Northern Harrier is a fantastic specimen of bird.
		The northern harrier during migration doesn't hesitate to cross water.
		The provisions for the harrier babies energy revolves around snakes and mice.
	www.westirondequoit.org /iroquois/birds/harrier.htm (200 words)

	Northern Harrier (Circus cyaneus) (Site not responding. Last check: 2007-09-19)
		Northern: In reference to its northern geographic location.
		Harrier:: Refers to the flight pattern of the bird, seeming to harry, or harass its prey
		Adult male: pale gray head and upperparts; long tail with white rump patch; yellow legs; yellow eye; adult female and immature are brownish overall (with immature underparts a uniform rust brown) with long tail and white rump patch; adults and immature female eyes brown, immature male eyes gray.
	museum.utep.edu /chih/theland/animals/birds/harrier.htm (213 words)

	eNature: FieldGuides: Species Detail
		Nesting 4 or 5 pale blue or white eggs, unmarked or with light brown spots, on a mound of dead reeds and grass in a marsh or shrubby meadow.
		Range Breeds from Alaska, northern Canada, and Maritime Provinces south to southern California, Arizona, Kansas, and Virginia.
		Harriers have keener hearing than other hawks; their disk-shaped faces, not unlike those of owls, enable them to amplify sound.
	www.enature.com /fieldguide/showSpeciesRECNUM.asp?recnum=BD0100 (299 words)

	NPWRC Northern Harrier (Site not responding. Last check: 2007-09-19)
		In flight, the wings are held in a shallow V similar to Turkey Vultures.
		Formerly called a Marsh Hawk, the Northern Harrier hunts on the wing in marshlands, fields and prairies.
		Photo taken 8/4/01 a few days before the Northern Harriers were released.
	www.npwrc.org /01harriera.html (126 words)

	Northern Harrier (Circus cyaneus)
		They feed largely on small rodents, particularly meadow voles.
		Harrier numbers are much reduced for reasons believed related to the destruction of its marsh habitat by humans.
		Northern harriers, once known by the fitting name of "marsh hawk," are found Statewide, but now nest most commonly in the eastern Upper Peninsula.
	www.michigan.gov /dnr/0,1607,7-153-10370_12145_12202-60854--,00.html (121 words)

	[No title]
		Art Poster Print - A northern harrier hawk, Circus cyaneus, flying Framed Print by Tim Laman, Size: 28x21
		Title: A northern harrier hawk, Circus cyaneus, flying
		All other designated trademarks, copyrights and brands are the property of their respective owners.
	www.shop.com /op/aprod-p26790669 (265 words)

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