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The Raptors of Iowa

James F. Landenberger, Dean M. Roosa, Jon W. Stravers, Bruce Ehresman, Rich Patterson

Publication Year: 2013

This long-awaited collection of James Landenberger’s paintings of Iowa birds of prey presents thirty-two full-page, full-color species, from the common turkey vulture to the red-shouldered hawk of Mississippi River woodlands to the little northern saw-whet owl. Four naturalists who have devoted their lives to conserving wilderness habitats and species have written essays to complement the paintings.

Thanks to state and federal laws and a shift in public attitude, birds of prey are no longer seen as incarnations of ferocity but as creatures superbly attuned to their lives and surroundings. Although Iowa unfortunately leads the way in the amount of wildlife habitat that has been destroyed, conservation organizations and state agencies have also led the way toward successful raptor restoration projects, among them a roadside nest box program for the American kestrel, a project to restore peregrine falcons to their historic eyries, and a relocation program that should ensure a sustainable population of ospreys. The recent spectacular recovery of the bald eagle, whose nests had vanished from the state for seventy years, is particularly encouraging.

There can be no substitute for seeing thousands of broad-winged hawks soaring high overhead during migration, a great horned owl perching in silhouette at dusk, or a Cooper’s hawk plunging toward its prey along the roadside. But Jim Landenberger’s meticulously detailed paintings go a long way toward conveying the remarkable beauty of the American kestrel and other falcons, the grace of the swallow-tailed kite, the immaculate mystery of the snowy owl and its fellow owls, the glistening head feathers of an adult bald eagle, and the piercing defiance so characteristic of our larger hawks. 

Published by: University of Iowa Press

Cover

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p. 1-1

Title Page

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pp. 2-6

Contents

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pp. 7-11

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Nature’s Teacher

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pp. 1-4

A small dark bird perched on a fence post twenty feet from the group. A member of the great tribe of birds I generically call LBB, or little brown bird, it was indistinctly marked. Normally LBBs flit around so fast that birders don’t get much of a look at them, giving their leader an opportunity to simply say, “Not sure what it is. Didn’t get a good look,” and move...

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The Intensity of Its Gaze

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pp. 5-16

Aldo leopold said that he could not live without wilderness. I share that feeling about raptors. I would feel cheated had I not been able to capture and band migrating hawks or climb to raptors’ nests and hold a helpless chick that would become a skilled predator. All youngsters so inclined should have the chance to see what I saw, capture and band hawks, enter into a hunter’s liai-...

The Raptors of Iowa

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pp. 17-28

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Turkey Vulture

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pp. 18-19

These common summer residents arrive in Iowa early in March; most are gone by mid October. They nest sparingly, mainly in south central Iowa. They form communal roosts, principally on wooded bluffs along major streams; some such roosts have been in continual use for decades. Carrion feeders, they are often seen feeding on roadkill and seem to be one of the few bird...

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Osprey

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pp. 20-21

The osprey is an uncommon migrant, appearing in Iowa from early April to mid May and again in August and September. A fish feeder, it depends on open water to initiate migration. Records are becoming more frequent in recent years due to introduction attempts by the Iowa Department of Natural Resources and many conservation partners. Iowa’s first nesting...

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Swallow-tailed Kite

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pp. 22-23

Our most elegant raptor is now of accidental occurrence in Iowa. It once nested sparingly in the state but disappeared prior to the twentieth century. With its long, forked, barn swallow–like tail, it is unmistakable. There have been three records in modern times: Black Hawk County in 1992, Cerro Gordo County in 2000, and Johnson County in...

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Mississippi Kite

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pp. 24-25

This graceful bird now regularly occurs in Iowa, being reported each year. It returned in 1978 after an absence of some seventy years. There are historic records of nesting in Iowa; in modern times, it has nested in Polk County in 1995 and succeeding years, and there is recent evidence of probable nesting in Ottumwa...

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Bald Eagle

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pp. 26-27

What a remarkable story surrounds our national symbol in Iowa! The bald eagle seems to have disappeared from Iowa as a nesting species around 1905, reappearing in Allamakee County in 1977. Since then it has spread statewide, with the most recent nest count being approximately three hundred nests in ninety-three counties. It congregates near open-water sites along...

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Northern Harrier

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pp. 28-29

There is no mistaking the characteristic flight of the northern harrier. It flies low over grasslands, quartering section by section. The white rump patch is a definitive field mark. A fairly common migrant, the harrier is most frequently spotted from mid March to mid April and again from mid September to mid October. It prefers native prairie for nesting; both habitat and bird...

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Sharp-shinned Hawk

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pp. 30-31

This exciting accipiter is a common migrant, seen in Iowa from mid March to mid May. It is an uncommon winter resident and apparently a very rare nester, with newly fledged young being seen in western Iowa and in Hardin and Lucas counties in recent years. It may have been a fairly common nester prior to the twentieth century....

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Cooper’s Hawk

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pp. 32-33

The Cooper’s is a fairly common migrant, an uncommon nester, and an uncommon winter resident. It nests most frequently in south central and northeast Iowa, but its secretive habits may help it escape detection in other parts of the state. Its flight pattern and coloration have long caused this accipiter to be called the blue darter. It preys almost exclusively on small birds...

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Northern Goshawk

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pp. 34-35

The goshawk, the largest of the bird hawks, is a rare winter resident in Iowa, appearing in late September and leaving by mid April. Periodically, the food base of this northern species declines, causing a southward invasion into neighboring states. Watching this wonderful large predator hunt is about as exciting as bird watching gets. Young birds of this and other...

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Red-shouldered Hawk

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pp. 36-37

The red-shoulder is an uncommon permanent resident and a rare nester. Its habitat is heavily wooded riparian areas, largely along the Mississippi River in eastern Iowa. It suffered a sharp decline as a nester in the 1950s and 1960s but seems to have a stable or even increasing nesting status currently. It often shares its habitat with the barred owl—the owl active by night, the...

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Broad-winged Hawk

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pp. 38-39

This midsize buteo is a common migrant but a rare nester in Iowa. During migration, it can move in large flocks of two to three thousand birds or more. It nests sparsely across the state, usually in deep woodlands. Iowa birds are gone by mid to late October and are virtually unknown in the state after that....

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Swainson’s Hawk

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pp. 40-41

This large buteo is a rare migrant and a very rare nester in Iowa. During migration, it is detected by mid April and is mostly gone after October. It is basically a Great Plains species, and its uncommon nest records occur in the northern and western parts of the state. It sometimes migrates in large flocks, although not as extensive as flocks of the broad-wing. Young Swainson’s hawks can...

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Red-tailed Hawk

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pp. 42-43

Common to abundant throughout the year, this is the bread-and-butter raptor of the bird watcher, yet the four subspecies that occur in Iowa make it a challenge to identify: the western red-tail, the eastern red-tail, Harlan’s redtailed hawk, and Krider’s red-tail. With its whitish head and nearly white tail feathers, the Krider’s (see page x) is the most spectacular..

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Ferruginous Hawk

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pp. 44-45

One of our rarest raptors, the ferruginous hawk has a nesting range in western Nebraska as its closest approach to Iowa. It is very difficult to positively identify, and many records are not accepted as valid. This is our largest North American buteo...

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Rough-legged Hawk

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pp. 46-47

This uncommon although regular winter resident arrives in Iowa in late October and leaves by late March. Its nesting range is the Arctic tundra, and its periodic incursions into northern states depend upon the availability of food. A large raptor hovering over an open field in winter is nearly always a roughleg. Two color phases—dark and light—occur in Iowa; light-phase birds...

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Golden Eagle

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pp. 48-49

Here is royalty in the minds of many birders. This western species is a rare migrant and a rare winter resident. Increased observations in recent years are probably due to an increased interest in ornithology but may also reflect increased human activity in its western range. Apparently a few pockets in Iowa, notably along the Upper Iowa and Mississippi rivers...

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American Kestrel

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pp. 50-51

This small falcon, often called a sparrow hawk, is common as a summer resident, less so as a winter resident, and often abundant during migration. The Iowa Department of Natural Resources, in conjunction with the Iowa Department of Transportation, initiated a nest box program along interstate highways in the early 1980s, and it is now common to see this...

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Merlin

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pp. 52-53

The midsize merlin is a rare migrant and a rare winter resident, first occurring during migration in late March and again in late August. A few very old nesting records exist. Two subspecies of this falcon occur in Iowa: the taiga merlin and the Richardson’s or prairie merlin, a pale form...

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Gyrfalcon

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pp. 54-55

The largest of the North American falcons lives mainly in the Arctic; it is of accidental occurrence in Iowa, with fewer than ten documented reports. The first acceptable records, from 1992 and 1993, were of gray-phase immature birds...

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Peregrine Falcon

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pp. 56-57

The crow-size peregrine falcon is uncommon during migration but is becoming more common due to a reintroduction program started by the Iowa Department of Natural Resources. Falconers, who were at the heart of the reintroduction efforts, led the way toward unlocking the secrets of captive propagation of this and other raptor species. After an absence...

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Prairie Falcon

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pp. 58-59

Records of this rare winter resident come mostly from the western half of Iowa. Observations span from very late August through very late April. This is another Great Plains species that wanders into Iowa after the nesting season. It rarely engages in the spectacular stoops of the peregrine falcon but operates much closer to the ground, often tail-chasing...

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Barn Owl

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pp. 60-61

The barn owl has tough sledding in Iowa because we are at the very northern edge of its range. Too bad, because it is one of our most interesting owls. Nearly worldwide in distribution, it is very beneficial to farmers, to orchardists, and to humans in general since its large broods require a constant supply of food. The state’s release program met with limited success...

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Eastern Screech-Owl

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pp. 62-63

The eastern screech-owl has been a fairly common permanent resident. However, records from the current Breeding Bird Atlas Project suggest that its numbers are declining. Whoever named this owl apparently did not hear its tremulous, descending, haunting warble or whinny, which is certainly not a screech; its lonely call also smacks of mystery and...

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Great Horned Owl

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pp. 64-65

This common permanent resident and common nester is one of our most efficient predators. It likely nests in every Iowa county because it utilizes a variety of nest structures, preys on a wide variety of birds and mammals, and is not bothered by the presence of humans and human habitation. Its low, melodious call—common in Iowa—is often heard in movies when...

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Snowy Owl

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pp. 66-67

The snowy is a rare winter visitor but is present in our state every year. It arrives as early as October and is normally gone by late March. Periodically, large invasions occur when lemmings, its principal food base, are in short supply in the Arctic. This is one of the few owls active during daylight....

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Northern Hawk Owl

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pp. 68-69

This is an accidental visitor to Iowa, with only two accepted records, one from Black Hawk County in 1981 and 1982 and one from Worth County in 2004 and 2005. As its name implies, its general shape and perching attitude are somewhat hawklike...

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Burrowing Owl

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pp. 70-71

The burrowing owl is a Great Plains species that rarely nests in Iowa, and these nests, as expected, are mostly in the western half of the state. It is our only owl that nests underground. In its principal range, it uses prairie dog burrows for its nest; in Iowa, it probably uses badger dens...

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Barred Owl

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pp. 72-73

The booming call of the barred owl is familiar to anyone even slightly interested in birds. Perhaps our least-studied Iowa raptor, it is a fairly common nester in deep woods, generally in river bottoms, often sharing its habitat with red-shouldered hawks at different times of the day and night. It occurs commonly in the east and southeast parts of the state but becomes...

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Great Gray Owl

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pp. 74-75

This very large owl is of accidental occurrence in Iowa. The fact that it is a bird of coniferous old-growth forests puts it in conflict with logging interests. Its conformation is similar to, though larger than, that of the barred owl, but it has yellow instead of brown eyes. Young nonnesting birds can be heard calling from the marginal habitat where they grow up; they compete...

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Long-eared Owl

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pp. 76-77

The crow-size long-eared owl occurs regularly but nests rarely in Iowa. Since it feeds on mice and uses old crow nests, it is difficult to understand why this owl is so rare here. In winter, conifer stands are good places to find it...

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Short-eared Owl

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pp. 78-79

This owl is found in Iowa every year, but only a handful of nesting records exist. In Iowa, as with the northern harrier, the short-ear prefers native prairie for nesting; it seems less likely to use restored prairies or Conservation Reserve Program lands for nesting. This implies that it will be a rare summer resident here for the foreseeable future. This species is often...

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Northern Saw-whet Owl

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pp. 80-81

This, the smallest owl found in Iowa, is a visitor from farther north; it is reported every year starting in early October. It is not known to nest here. However, it nests close to the northeast corner of Iowa, where there is plenty of favorable habitat. The boreal owl, Aegolius funereus, a resident of boreal forests, is a bit bigger than the saw-whet owl, just as tame, and much...

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The Spiral of Perfection

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pp. 83-95

Dean Roosa and Jim Bednarz first introduced me to the idea of doing fieldwork on red-shouldered hawks in the floodplain forests along the lower parts of the Yellow River and Sny Magill Creek in northeast Iowa in the spring of 1977. Ever since that first encounter (now thirty-five years later as I write this), I have been chasing these birds, slogging through swampy...

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A Growing Appreciation for Raptors

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pp. 97-103

Even though the barn owl restoration effort has not been as successful as hoped, Iowa’s next restoration effort has been. The widespread use of organochlorine pesticides led to the elimination of peregrine falcon nesting on the Mississippi River bluffs in the early to mid 1960s; by that time no more peregrines nested from Iowa to the east coast. Iowa joined a larger...

Books Of Interest

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pp. 105-107


E-ISBN-13: 9781609381677
E-ISBN-10: 160938167X
Print-ISBN-13: 9781609381660
Print-ISBN-10: 1609381661

Page Count: 119
Illustrations: 34 paintings
Publication Year: 2013

Edition: 1st ed.
Series Title: Bur Oak Book
Series Editor Byline: John Smith, Will Wordsworth