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der Habicht Pl. wiss.: Accipitridae (Familie) [Vogelkunde]. der Falke Pl. wiss.: Falconidae [Vogelkunde]. der Beizvogel Pl.: die Beizvögel [Vogelkunde]. hawk [fig.] [POL.]. der Falke Pl.: die Falken [fig.].
Übersetzung für 'hawk' im kostenlosen Englisch-Deutsch Wörterbuch von LANGENSCHEIDT – mit Beispielen, Synonymen und Aussprache. hawk [fig.] [POL.]. Englisch-Deutsch-Übersetzungen für to hawk im Online-Wörterbuch wheelchairtennis.nl (Deutschwörterbuch).
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And he loved to wear spiffy socks — the more brightly colored and patterned, the better, Stephen Deutsch said. Each winter, Mr. Deutsch and his four boys would head to Boca Raton to play golf and reconnect.
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Namespaces Article Talk. For example, on the San Joaquin Experimental Range in California, they were recorded taking gopher snakes against 83 western rattlesnakes Crotalus oreganus.
Based on surveys, however, the rattlesnakes were five times more abundant on the range than the gopher snakes.
In North America, fewer lizards are typically recorded in the foods of red-tailed hawk than are snakes, probably because snakes are considerably better adapted to cooler, seasonal weather, with an extensive diversity of lizards found only in the southernmost reaches of the contiguous United States.
This is especially true of hawks living on islands which are not naturally colonized by small mammals. Insular red-tails commonly pluck up mostly tiny anoles , that may average only 1.
Records of predation on amphibians is fairly infrequent. It is thought that such prey may be slightly underrepresented, as they are often consumed whole and may not leave a trace in pellets.
Their fine bones may dissolve upon consumption. Known amphibian prey has ranged to as small as the 0.
Among the rare instances of them capturing fish have included captures of wild channel catfish Ictalurus punctatus , non-native common carp Cyprinus carpio and ornamental koi Cyprinus rubrofuscus as well some hawks that were seen scavenging on dead chum salmon Oncorhynchus keta.
As easily one of the most abundant of all American raptorial birds, red-tailed hawks have been recorded as interacting with every other diurnal bird of prey.
Due to the extreme dietary plasticity of red-tails, the food habits of other birds of prey regularly overlap considerably with red-tails.
Furthermore, due to its ability to nest in varied habitats, home ranges also frequently abut those of other raptor species. In some cases, territorial clashes of Swainson's hawks and red-tailed hawks can last up to 12 hours, however, the birds involved are usually careful to avoid physical contact.
The ferruginous hawk prefers open, practically treeless prairie while of these, the red-tailed hawks prefers the most wooded areas with large trees, while the Swainson's hawk prefer roughly intermediate areas.
It also breeds notably later than the other two species. Part of this advantage is that the Swainson's hawk is apparently a superior flier both in long and short-distance flights, with its more pointed wing shape and lower wing loading allowing it more agile, sustained and speedier flight that the bulkier hawks cannot match.
Usually, the habitat preferences of red-tailed hawks and ferruginous hawks are discrepant enough to keep serious territorial conflicts to a minimum.
Red-tails may be somewhat dominant based on prior reports in food conflicts but the ferruginous hawk may also win these. Beyond the Swainson's and ferruginous hawks, six other Buteos co-occur with red-tailed hawks in different parts of North America.
Many of these are substantially smaller than red-tails and most serious territorial conflicts with them are naturally mitigated by nesting in deeper wooded areas.
However, in Alaska they sometimes nest in the same areas. The rough-legged buzzards are both cliff and tree nesters and areas used by the two species are not necessarily mutually exclusive but each seems to avoid the other, in part by differing breeding schedules.
During winter their hunting habits may keep them somewhat separate, the rough-legged being a much more aerial hunter, but rough-legged buzzards usually withdrew if a red-tailed hawk flew towards them.
There is at least one case, however, of a rough-legged buzzard being the victor of a conflict over a kill with a red-tailed hawk. Nesting range overlap here most often occurred on white pine forests.
As habitat has opened over time, red-tailed hawks frequently took over former red-shouldered hawk territories, even using their nests in two cases.
Therefore, again with sufficient habitat partitioning, the two species can live near one another without negatively effecting one another.
Usually, habitat preferences kept conflicts to a minimum, with the red-tailed hawk favoring taller, more isolated saguaro cactus for nesting, whereas the other species outnumbered red-tails in areas that were denser and more shrubby.
Hawks and kites from outside the buteonine lineage are usually substantially smaller or at least different enough in diet and habitat to largely avoid heavy conflict with red-tailed hawks.
On occasion, northern harriers Circus hudsonius which have much lower wing loading, will mob red-tailed hawks out of their home ranges but in winter the red-tails seem to be dominant over them in conflicts over food.
In some areas, the prey species of these can be very similar and North American populations of goshawks take many more squirrels and leporids than their Eurasian counterparts do.
Red-tails were more flexible in diet, although there was a very broad overlap in prey species selected, and nesting habitat than the goshawks were.
Adults of both species have been shown to be able to kill adults of the other. The great horned owl occupies a similar ecological niche nocturnally to the red-tailed hawk.
Mean prey weights in different areas for great horned owls can vary from Great horned owls are incapable of constructing nests and readily expropriate existing red-tail nests.
The habitat preferences of the two species are quite similar and the owl frequently uses old red-tail nests, but they do seem to prefer more enclosed nest locations where available over the generally open situation around red-tailed hawk nests.
Sometimes in warmer areas, the owls may nest sufficiently early to have fledged young by the time red-tails start to lay. However, when there is a temporal overlap in reproductive cycles, the owl sometimes takes over an occupied red-tail nest, causing desertion.
Red-tailed hawks have an advantage in staple prey flexibility as aforementioned, while great horned owl populations can be stressed when preferred prey is scarce, especially when they rely on leporids such as hares and jackrabbits.
The red-tails migratory behavior was considered as the likely cause of this lack of effect, whereas great horned owls remained through the winter and was subject to winter-stress and greater risk of starvation.
On the other hand, red-tailed hawks are rarely if ever a threat to the great horned owl. Occasionally a red-tailed hawk can strike down an owl during the day but only in a few singular cases has this killed an owl.
In one case, a great horned owl seemed to have ambushed, killed and fed upon a full-grown migrating red-tail even in broad daylight. In these close proximity areas all owl nests succeeded while only two red-tail nests were successful.
In all three areas, any time the red-tails tried to nest closer to great horned owls, their breeding success rates lowered considerably.
It is presumable that sparser habitat and prey resources increased the closeness of nesting habits of the two species, to the detriment of the red-tails.
Red-tailed hawks may face competition from a very broad range of predatory animals, including birds outside of typically active predatory families, carnivoran mammals and some reptiles such as snakes.
Mostly these diverse kinds of predators are segregated by their hunting methods, primary times of activity and habitat preferences. In California, both the red-tails and western diamondback rattlesnakes Crotalus atrox live mainly on California ground squirrel , but the rattlesnake generally attacks the squirrels in and around their burrows, whereas the hawks must wait until they leave the burrows to capture them.
For instance, no serious competition probably occurs between them and Canada lynx Lynx canadensis despite both living on snowshoe hares.
Distinguishing territorial exclusionary behavior and anti-predator behavior is difficult in raptorial birds.
However, as opposed to other medium to largish hawks which chase off red-tails most likely as competition, in much smaller raptors such as kestrels and smaller Accipiter hawks, their aggressive reaction to red-tailed hawks is almost certainly an anti-predator behavior.
Although less prolific than goshawks , some eagles and, especially, great horned owls , red-tailed hawks can and do prey upon smaller birds of prey.
In turn, red-tailed hawks may engage in behavior that straddles territorial exclusion and anti-predator behavior to the two much larger raptors in North America which actively hunt, the eagles.
Red-tails are most commonly seen flying towards and aggressively displacing both flying bald eagles Haliaeetus leucocephalus and golden eagles Aquila chrysaetos , but may also, to the contrary, unobtrusively duck down out of flight to an inconspicuous perch when an eagle is spotted.
The behavioral variation is probably related to the activity of hawks, which may feel the need to protect their nests and food resources while actively breeding but are not usually willing to risk their lives in attacking an eagle while migrating or wintering.
At times mobbing behavior of smaller raptors may cause both eagles to turn over and present their large talons to their attacker, which can be dangerous for the smaller hawk.
In particular, the golden eagle is probably the greatest daytime threat to fledged immature and adult red-tails, as these have turned up in many dietary studies of the powerful eagle.
On occasion, this may result in the bald eagle bringing the nestling red-tails to their own nest and, for some reason, not killing them.
In some cases, the bald eagles inadvertently actually raise the nestling red-tails themselves and the baby red-tailed hawks may successfully fledge.
The most likely major predator of eggs and nestlings that disappear is the raccoon which, during its nocturnal foraging, is a notorious enemy of nearly any kind of birds nest.
This is especially true of snakes, with some prey species of Pituophis , Pantherophis and Coluber known to overpower and nearly kill, often the hawk survives only if by human intervention.
Not infrequently prey such as coral snakes and rattlesnakes may succeed in killing red-tailed hawks with their venom, even if they themselves are also killed and partially consumed.
Pairs either court for the first time or engage in courtship rituals to strengthen pre-existing pair bonds before going into the breeding. The breeding season usually begins in late February through March, but can commence as early as late December in Arizona and late January in Wisconsin or to the opposite extreme as late as mid-April as in Alberta.
One or both members of a pair may be involved. The courtship display often involves dangling legs, at times the pair will touching each other's wings and male's feet may touch female's back, she may occasional roll over and present talons, food passes are rarely reported.
Circling above territory tends to be done noisily and conspicuously, helping insure against possible takeovers. Spring circling of a pair can be a prelude to copulation.
Sky-dances no longer occur after late incubation. A perched display, with fluffed-out breast feathers may too occur at this time. Even males that are in spring migration have been recorded engaging in a separate display: circling at slow speed before partially closing wings, dropping legs with talons spread and tilting from side-to-side.
A female hawk is usually around when migrating male does this but she does not engage in this display herself. The highest recorded density of pairs was in California where each pair occurred on 1.
Here and elsewhere, both members of the pair stay quite close together throughout winter if they are sedentary. On the other hand, migrant populations tend to separate while migrating and return to the same territory to find its prior mate, sometimes before they reach their home range.
In one case in Baja California , when a female was shot on May 16, the male of that pair was seen to have selected a new mate the following day.
The female twists and moves her tail feathers to one side, while the mounted male twists his cloacal opening around the female's cloaca.
Copulation lasts 5 to 10 seconds and during pre-nesting courtship in late winter or early spring can occur numerous times each day. More than 21 tree species were recorded used in Puerto Rico.
Lining the nest may be for warning other red-tails of the active use of a nest. In most of the interior contiguous United States the first egg is laid between mid-March and early April, ranging from 3 to 5 weeks after the nest is constructed, with the clutch completed 2 to 5 days after the initial egg is laid.
At the species level, body size also determines clutch size. Average egg sizes in height and width each with a sample size of 20 are in the following subspecies- B.
The markings often appear indistinctly and may combine to form a fine speckling. Rarely do the males incubate more than four hours of daylight.
The male brings most food to the female while she incubates. After 28 to 35 days of incubation averaging about three days longer in the Caribbean as does fledgling as compared to North American red-tails , the eggs hatch over 2 to 4 days.
The female feeds the eyasses after tearing the food into small pieces. The young red-tails are active by the second day when they issue soft peeping calls, bounce, and wave continuously with their wings.
By day 7, the bouncing and peeping begin to wane, and young start to peck at prey in their nest. Nestlings emit high whistling notes usually in response to adults overhead by day 10, sit up on tarsometatarsi by day 15, become aggressive toward intruders by day 16, strike out with talons and wings by day 21, begin to stretch wings and exercise regularly by day After 42 to 46 days, the eyasses begin to leave the nest and tear apart prey for themselves.
In the east, red-tailed hawk females rarely defend nests from humans but historically in California and quite often still in Alaska , some female will dive repeatedly and "savagely", sometimes snapping off large branches in her temper, occasionally stunning herself or inadvertently knocking down her own youngster if it is attempting to fledge.
Apparently, the less extensive prior exposure they have to humans may make mature females more aggressive towards humans near the nest.
Ultimately, the runt in such cases does not usually survive and may be either found crushed in the nest, discarded out of the nest after starvation or consumed by the parents or the siblings.
However, as a whole, such killings are fairly rare and only occur when food supplies are extremely low, often this being in sync with poor spring weather such as overly rainy or cold conditions.
However, after about four weeks, the female often stops discarding leftover prey and the increased presence of flies may form somewhat of a risk to disease in the young but may also merely get the young to leave the nest sooner.
As recorded in Shoal Harbor Migratory Bird Sanctuary located near Sydney, British Columbia, on June 9, , a juvenile red-tailed hawk was taken by a pair of bald eagles back to their nest, whereupon the chick, originally taken as prey, was accepted into the family by both the parents and the eagles' three fledglings.
After surviving six weeks amongst the eagles, the fledgling, nicknamed "Spunky" by birdwatchers, had successfully begun learning to hunt and fly, showing that the aggressive hawk was able to survive amongst a nest of much larger adoptive siblings.
Young typically leave the nest for the first time and attempt their first flights at about 42—46 days after hatching but usually they stay very near the nest for the first few days.
During this period, the fledglings remain fairly sedentary, though they may chase parents and beg for food. Parents deliver food directly or, more commonly, drop it near the young.
Short flights are typically undertaken for the first 3 weeks after fledgling and the young red-tails activity level often doubles. About 6 to 7 weeks after fledging, the young begin to capture their own prey, which often consists of insects and frogs that the young hawks can drop down to onto the ground with relative ease.
At the point they are 15 weeks old, they may start attempts to hunt more difficult mammal and bird prey in sync with their newly developed skills for sustained flight, and most are efficient mammal predators fairly soon after their first attempts at such prey.
Shortly thereafter, when the young are around 4 months of age, they become independent of their parents. In some extreme cases, juvenile red-tails may prolong their association with their parents to as long as they are half a year old, as was recorded in Wisconsin.
Although post-fledgling siblings in their parents care are fairly social, they are rarely seen together post distribution from their parents range.
In some cases, such as near urban regions, immatures may be driven to a small pockets of urban vegetation with less tree cover and limited food resources.
When a distant adult appear, immature may drop from a prominent perch to a more concealed one. Such cases have been recorded in Alberta , Arizona and Wisconsin , with about half of these attempts being successful at producing young.
Breeding success is variable due to many factors. In comparison, lifespans of up to While most mortality of young red-tails is at least mainly due to natural causes, mortality of fledged or older red-tails is now mostly attributable to human killing, accidental or intentional, as well as flying into manmade materials.
This generally consists of warfarin cookies which induce internal bleeding in rats and mice, and a hawk that ingests rodents who have consumed rat poison can itself be affected.
The red-tailed hawk is a popular bird in falconry , particularly in the United States where the sport of falconry is tightly regulated; this type of hawk is widely available and is frequently assigned to apprentice falconers.
Not being as swift as falcons or accipiters , red-tailed hawks are usually used to hunt small game such as rabbits and squirrels, as well as larger quarry such as Hares.
However, some individuals may learn to ambush game birds on the ground before they are able to take off and accelerate to full speed, or as they have fly into cover after a chase.
Some have even learned to use a falcon-like diving stoop to capture challenging game birds such as pheasants in open country.
In the course of a typical hunt, a falconer using a red-tailed hawk most commonly releases the hawk and allows it to perch in a tree or other high vantage point.
The falconer, who may be aided by a dog, then attempts to flush prey by stirring up ground cover. A well-trained red-tailed hawk will follow the falconer and dog, realizing that their activities produce opportunities to catch game.
Once a raptor catches game, it does not bring it back to the falconer. Instead, the falconer must locate the bird and its captured prey, "make in" carefully approach and trade the bird off its kill in exchange for a piece of offered meat.
The feathers and other parts of the red-tailed hawk are considered sacred to many American indigenous people and, like the feathers of the bald eagle and golden eagle , are sometimes used in religious ceremonies and found adorning the regalia of many Native Americans in the United States ; these parts, most especially their distinctive tail feathers, are a popular item in the Native American community.
From Wikipedia, the free encyclopedia. Redirected from Red-tailed Hawk. Species of bird. Conservation status. Gmelin , Play media.
A trained red-tailed hawk working with a volunteer from the Ojai Raptor Center. Buteo jamaicensis. Raptors of the World. London: Christopher Helm.
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Volume 5 Diurnal Raptors part 2. Wildlife of the Concho Valley. Encyclopedia of Life. Retrieved 21 March Canadian Journal of Zoology. North American falconry and hunting hawks.
Hancock House Books British Columbia. Bureau of Land Management. Retrieved 12 January Global Raptor Information Network. Geological Survey.
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Birding : 30— Catalogue of fossil birds: Part 2 Anseriformes through Galliformes. University of Florida. The Auk. Bibcode : PLoSO Caribbean Journal of Science.
Gmelin, ". Integrated Taxonomic Information System.While the peregrine falcon Falco peregrinus has a greater latitudinal distribution as a nester in North America, its range as a breeding species is far more sporadic and Hawks Deutsch than that of red-tailed hawks. Short flights are typically undertaken Www Kitzbuehel Com the first 3 weeks after fledgling and the young red-tails activity level often doubles. It is known that pairs of red-tailed hawks will cooperative hunt tree squirrels at times, probably mostly between late fall and early Beste Spielothek in Strebendorf finden. In comparison, lifespans of up to Swainson's hawks are distinctly darker on the wing and ferruginous hawks are much paler winged than typical red-tailed hawks. Journal of Field Gta 5 Jugular. Views Read Edit View history.