YOUTH FOR WILDLIFE
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Snowy Owls




Photographing Snowy Owls



By: David G Hemmings

Nature’s Photo Adventures

Getting the shot, that’s what it is all about for the avid bird in flight photo-grapher. The thrill of the moment when all the stars are aligned, the lighting and conditions are just right and it all comes together for that magical moment when the shutter clicks and you just know that you captured a remarkable image of a bird in flight.


There are few species that capture the imagination for bird and nature photographers more than the Snowy owl. This is one of nature’s most magnificent raptors and a real favorite subject of mine. The first time you see and photograph one of these beauties will be a day that you will remember for a long time to come. To this day, my heart skips a beat every time I am fortunate enough to see and photograph this bird.







Have you ever wondered what can and does go into getting the shot?

Where, when, why and how?  There certainly is a lot more to it than just pointing the camera and shooting!  Consider that most of us are willing to go to great lengths and expenses to get the shot of a particular species that we covet and want in our collection, and to share with others, like you. Take these images of the Snowy Owl for example. Here is some of what went into getting these shots.

Research and more research on where the target species have been spotted.

You have to plan the trip. When do you go? Will the birds still be there? What will the weather be like? There is one ingredient in capturing these beautiful in flight images that matters more than anything, and that is light. Sunlight to be exact. Sometimes the most well intended trip can produce no real stunning images at all if the weather does not co operate.  I have made many trips to different destinations only to be foiled by bad weather and minimal light. That is when we make lemonade out of lemons!


And then there are other factors, such as temperature. The temperature was a bone chilling -18 degrees Celsius with a wind chill factor thrown in that made it so cold that the tears from my cold eyes froze to my eyelids before they could run down my cheek.  I could not feel my toes or the ends of my fingers very well, just enough to click the shutter when I had to. Many of us will travel half way around the globe in search of an image of a particular species in flight. For me, this time, it was only a 6 or 7 hour drive into Northern Quebec, Canada.






 

The first day we did not find the Snowy Owl that had been seen in the area in previous days/weeks. 8 hours of hiking and driving in the freezing cold with nothing to show for it.  Success finds us on the second day. We find one owl and go to work setting up to get the photos. It is so cold that it is hard to look into the wind to see the owl. Then you have to lift a rather bulky and heavy camera body and lens up to your face and follow where the bird is flying. It hurts to do this a few times in a row, but you have to get the shot. 


You have to have a steady hand and a good technique in order to do what you came to do.  In the freezing cold, you have to take light readings and adjust all of the settings on your camera for the desired result. You have to take your gloves off and touch the camera body that is colder than ice to accomplish this. You can hardly see through your freezing eyes and there is not much feeling left in your fingers, but the bird is flying and you have to get that shot!

Well, I did get the shot, a few shots actually, and so did other photographers.

This made all of the travel, the freezing cold conditions and the effort more than worth while.  So, the next time you see an amazing image of a Snowy Owl in flight, the expression “he was lucky to be in the right place at the right time” has a whole new meaning.







The Snowy Owl was first classified in 1758 by Carolus Linnaeus, the Swedish naturalist who developed binomial nomenclature to classify and organize plants and animals. The name "scandiacas" is a Latinized word referring to Scandinavia, as the Owl was first observed in the northern parts of Europe. Some other names for the Snowy Owl are Snow Owl, Arctic Owl, Great White Owl, Ghost Owl, Ermine Owl, Tundra Ghost, Ookpik, Scandinavian Night bird, White Terror of the North, and Highland Tundra Owl. It is the official bird of Quebec.

Description: The Snowy Owl is a large, diurnal white Owl that has a rounded head, yellow eyes and black bill. The feet are heavily feathered. A distinctive white Owl, their overall plumage is variably barred or speckled with thin, black, horizontal bars or spots. Females and juveniles are more heavily marked than males - adult males may be almost pure white, although they have up to three tail bands. Adult females are distinctly barred throughout, and have from four to six tail bands. Immatures are very heavily barred throughout, and dark spotting may co dominate or dominate the overall plumage. Intensity of dark spotting varies with the sex of the immatures, females being the darkest. Juveniles are uniformly brown with scattered white tips of down.

Size: Length 51-68.5 cm (20-27") average female 66cm (26" inches),
male 59cm (23")

Wingspan 137-164cm (54-65")
Weight 1134-2000g (40-70oz) average female 1707g (60oz), male 1612g (57oz)






Habits:
Snowy Owls are active during the daytime, from dawn to dusk. They have a direct, strong, and steady flight with deliberate, powerful down strokes and quick upstrokes. They make short flights, close to the ground, from perch to perch, and usually perches on the ground or a low post. During hot weather they can thermo regulate by panting and spreading their wings. Snowy Owls are very aggressive when defending their nest. 


Voice: The Snowy Owl is virtually silent during nonbreeding seasons. The typical call of the male is a loud, harsh, grating bark, while the female has a similar higher pitched call. During the breeding season males have a loud, booming "hoo, hoo" given as a territorial advertisement or mating call. Females rarely hoot. Its attack call is a guttural "krufff-guh-guh-guk". When excited it may emit a loud "hooo-uh, hooo-uh, hooo-uh, wuh-wuh-wuh". Other sounds are dog-like barks, rattling cackles, shrieks, hissing, and bill-snapping. Nestlings "cheep" up to 2 weeks of age, then hiss and squeal.







Hunting & Food:
Most hunting is done in the "sit and wait" style. These Owls are highly diurnal, although they may hunt at night as well. Prey are captured on the ground, in the air, or snatched off the surface of water bodies. When taking snowshoe hares, a Snowy Owl will sink its talons into the back and back flap until the hare is exhausted. The Owl will then break its neck with its beak. Snowy Owls have been known to raid trap lines for trapped animals and bait, and will learn to follow trap lines regularly. They also snatch fish with their talons. Small prey up to small hares are swallowed whole, while larger prey is carried away and torn into large chunks. Small young are fed boneless and furless pieces. Large prey are carried of in the Owl's talons, with prey like lemmings being carried in the beak.


Snowy Owls are mainly dependent on lemmings and voles throughout most of their Arctic and wintering range. When these prey are scarce they are an opportunistic feeder and will take a wide range of small mammals and birds. Some mammal prey include mice, hares, muskrats, marmots, squirrels, rabbits, prairie dogs, rats, moles, and entrapped furbearers. Birds include ptarmigan, ducks, geese, shorebirds, Ring-necked Pheasants, grouse, American coots, grebes, gulls, songbirds, and Short-eared Owls. Snowy Owls will also take fish and carrion.


Some nesting Owls switch from lemmings and voles to young ptarmigan when they become available. Snowy Owls do not hunt near their nests, so other birds, such as Snow Geese, often nest nearby to take advantage of the Owls driving off predators such as foxes.








Snowy Owls produce large, rough-looking cylindrical pellets with numerous bones, feathers, and fur showing. They are usually expelled at traditional roosting sites and large numbers of pellets can be found in one spot. When large prey are eaten in small pieces with little roughage, pellets will not be produced.


Breeding: Courtship behavior can begin in midwinter through to March and April, well away from breeding areas. Males will fly in undulating, moth-like flight when females are visible. On the ground males will bow, fluff feathers, and strut around with wings spread and dragging on the ground. Males kill and display prey in caches to impress females, often feeding the female. The Snowy Owl nests almost exclusively on the ground, where the female makes a shallow scrape with her talons on top of an elevated rise, mound, or boulder. Abandoned eagle nests and gravel bars are used occasionally. Nests may be lined with scraps of vegetation and Owl feathers. Nest sites must be near good hunting areas, be snow-free, and command a view of surroundings. There is little breeding site-faithfulness between years or mates in some areas, but in other areas, a pair of Owls may nest in the same spot for several years. Territories around nests range from 1.5 to 6.5 square kilometers (0.6 to 2.5 square miles), and overlap with other pairs.







Breeding occurs in May, Clutch and brood sizes are heavily dependent on food supply. Snowy Owls may not nest at all during years of low lemming numbers. Clutch sizes normally range from 5 to 8 white eggs but may be as many as 14 eggs during high lemming years. They are laid at approximately 2 day intervals and average about 57 x 45 mm.  The female incubates while the male brings her food and guards the nest. Eggs hatch in 32-34 days at two day intervals, leading to large age differences in nests with large clutch sizes. Young are covered in white down. Young begin to leave the nest after about 25 days, well before they can fly. They are fledged at 50 to 60 days. Both parents feed and tend the young, and are fiercely protective and may attack intruders up to 1 kilometer (0.6 miles) from the nest! Nestling Owls require about 2 lemmings/day and a family of Snowy Owls may eat as many as 1,500 lemmings before the young disperse. Snowy Owls are single brooded and likely do not lay replacement clutches if their first clutch is lost. Almost 100% nesting success can be achieved during good vole years.


Numbers fluctuate wildly, usually in concert with lemming and vole numbers. For Example, Banks Island may have 15,000 to 20,000 Snowy Owls during good lemming years and only 2,000 during low lemming years with densities ranging from 1 Owl per 2.6 square kilometer (1 Owl per square mile) in good lemming years to 1 Owl per 26 square kilometers (1 Owl per 10 square miles) in low lemming years.







Mortality: Snowy Owls can live at least 9.5 years in the wild and 35 years in captivity. Natural enemies are few - Arctic foxes and wolves prey upon them on their tundra breeding grounds, while skuas and jaegers may take eggs or chicks.


Habitat: The Snowy Owl is a bird of Arctic tundra or open grasslands and fields. They rarely venture into forested areas. During southward movements they appear along lakeshores, marine coastlines, marshes, and even roost on buildings in cities and towns. In the Arctic, they normally roost on pingaluks (rises in the tundra) and breed from low valley floors up to mountain slopes and plateaus over 1,000 meters (3,000 feet) in elevation. When wintering in the Arctic, they frequent wind-swept tundra with little snow or ice accumulation. At more southern latitudes they typically frequents agricultural areas.







Distribution:
Circumpolar - Arctic regions of the old and new worlds.
In North America, Snowy Owls breed in the western Aleutian Islands, and from northern Alaska, northern Yukon, and Prince Patrick and northern Ellesmere islands south to coastal western Alaska, northern Mackenzie, southern Keewatin, extreme northeastern Manitoba, Southampton and Belcher islands, northern Quebec and northern Labrador. The Snowy Owl is highly nomadic. During periods of lemming and vole population crashes in the Arctic, or excessive cold and snow in winter, mass movements of Snowy Owls occur into southern Canada and northern United States. These invasions occur every 3 to 5 years, but are highly irregular. Adult females stay furthest north while immature males move furthest south during these incursions.

References: 

Boyer and Hume. 1991. "Owls of the World". BookSales Inc

Campbell, Wayne. 1994. "Know Your Owls (CD-ROM)". Axia Wildlife

König, Weick and Becking. 1999. "Owls: A Guide to the Owls of the World". Yale University Press

Long, Kim. 1998. "Owls: A Wildlife Handbook". Johnson Books

Mikkola, Heimo. 1983. "Owls of Europe". Buteo Books

Voous, Karel H.. 1988. "Owls of the Northern Hemisphere". The MIT Press