Birds Of The Great Plains: Family Icteridae (Meadowlarks, Blackbirds, And Orioles),
2012
University of Nebraska-Lincoln
Birds Of The Great Plains: Family Icteridae (Meadowlarks, Blackbirds, And Orioles), Paul A. Johnsgard
Paul Johnsgard
Bobolink Eastern Meadowlark Western Meadowlark Yellow-headed Blackbird Red-winged Blackbird Orchard Oriole Northern Oriole (Baltimore and Bullock Orioles) Brewer Blackbird Great-tailed Grackle Common Grackle Brown-headed Cowbird
Waterfowl Of North America: Swans And True Geese Tribe Anserini,
2012
University of Nebraska-Lincoln
Waterfowl Of North America: Swans And True Geese Tribe Anserini, Paul A. Johnsgard
Paul Johnsgard
The approximately twenty extant species of swans and true geese are, unlike the whistling ducks, primarily of temperate and arctic distribution, especially in the Northern Hemisphere. It is thus not surprising that continental North America may lay claim to at least nine breeding species, or nearly half.of the known total. Additionally, sufficient records of a tenth, the barnacle goose, are known as to warrant its inclusion in the book even though there is no indication that it nests in continental North America. Several additional Old World species of geese and swans have been reported one or more times in North …
Birds Of The Great Plains: Family Phalaropodidae (Phalaropes),
2012
University of Nebraska-Lincoln
Birds Of The Great Plains: Family Phalaropodidae (Phalaropes), Paul A. Johnsgard
Paul Johnsgard
Wilson Phalarope
Color Plates,
2012
University of Nebraska-Lincoln
Color Plates, Paul A. Johnsgard
Paul Johnsgard
32–35. Sage Grouse • 36–39. Blue Grouse • 40–43. Spruce Grouse • 44–46. Willow Ptarmigan • 47–49. Rock Ptarmigan • 50–51. White-tailed Ptarmigan • 52–54. Ruffed Grouse • 55–58. Pinnated Grouse • 59–60. Sharp-tailed Grouse • 61. Downy Young of Grouse and Partridges • 89. Long-tailed Tree Quail • 90. Bearded Tree Quail • 91. Mountain Quail • 92. Barred Quail and Scaled Quail • 93. Elegant Quail • 94. Gambel Quail • 95. Scaled Quail • 96. Gambel Quail • 97. Hybrid Gambel x Scaled Quail • 98. California Quail • 99. Bobwhite Quail • 100. Spotted Wood Quail …
Handbook Of Waterfowl Behavior: Tribe Oxyurini (Stiff-Tailed Ducks),
2012
University of Nebraska-Lincoln
Handbook Of Waterfowl Behavior: Tribe Oxyurini (Stiff-Tailed Ducks), Paul A. Johnsgard
Paul Johnsgard
The stiff-tailed ducks constitute a unique section of the Anatidae that is possibly the most isolated of all the tribes with the exception of the Anseranatini. There are eight species which almost certainly belong in the group, plus one more that is only very tentatively included. The tribe is of worldwide occurrence. Seven of the species have long, narrow, and stiffened tail feathers that function as rudders in underwater swimming, at which all species are very adept. These species also have a dense and shiny body plumage much like that of grebes, but lack metallic coloration altogether. The typical species …
Social Behavior Of North American Owls,
2012
University of Nebraska-Lincoln
Social Behavior Of North American Owls, Paul A. Johnsgard
Paul Johnsgard
Social behaviors in animals include a very wide range of interindividual communications, both within and between species. They include such rather generalized social responses as social flocking or roosting behavior, as well as much more individualized and complex interactions such as courtship, aggression, and parental behaviors. Regardless of their complexity, social interactions involve some level of communication or the transmission and interpretation of social signals. These signals can be transmitted in any of several sensory channels, which in owls are most likely to include visual, acoustic, and tactile modes of communication. Most and perhaps all owls show distinctive postures when …
Birds Of The Great Plains: Family Hirundinidae (Swallows),
2012
University of Nebraska-Lincoln
Birds Of The Great Plains: Family Hirundinidae (Swallows), Paul A. Johnsgard
Paul Johnsgard
Violet-green Swallow Tree Swallow Bank Swallow Rough-winged Swallow Barn Swallow Cliff Swallow Purple Martin
Birds Of The Great Plains: Family Pelecanidae (Pelicans),
2012
University of Nebraska-Lincoln
Birds Of The Great Plains: Family Pelecanidae (Pelicans), Paul A. Johnsgard
Paul Johnsgard
White Pelican (American White Pelican)
Historic Birds Of Lincoln's Salt Basin Wetlands And Nine-Mile Prairie,
2012
University of Nebraska-Lincoln
Historic Birds Of Lincoln's Salt Basin Wetlands And Nine-Mile Prairie, Paul A. Johnsgard
Paul Johnsgard
The changes that have occurred in the bird life of the Lincoln area during the past century must certainly be great, but we have little evidence to document this point. There is, however, an annotated bird list from 1900 for the salt basin wetlands of western Lincoln, an area then gradually being developed for recreational use. This list was published by J. S. Hunter in the Proceedings of the First Annual Meeting of the Nebraska Ornithologists' Union (1900, 18-21). At this time, the recently impounded but still saline lake was 2 to 3 feet deep, and it covered about two …
9 Hunting, Recreation, And Conservation,
2012
University of Nebraska-Lincoln
9 Hunting, Recreation, And Conservation, Paul A. Johnsgard
Paul Johnsgard
There can be little doubt that the grouse and quail provide the most important and most popular targets for more than ten million small-game hunters every year in North America (National survey, 1965). In much of the southeast, to go "bird" hunting simply means a day in pursuit of bobwhites, and likewise in New England "pa'tridge" hunting is regarded as the premier sport of all upland game hunting. These two species, the bobwhite and ruffed grouse, in 1970 were hunted in forty-seven states and eight provinces and are without question the most important of all North American upland game species …
Birds Of The Rocky Mountains—Introduction,
2012
University of Nebraska-Lincoln
Birds Of The Rocky Mountains—Introduction, Paul A. Johnsgard
Paul Johnsgard
The Rocky Mountains represent the longest and in general the highest of the North American mountain ranges, extending for nearly two thousand miles from their origins in Alaska and northwestern Canada southward to their terminus in New Mexico, and forming the continental divide for this entire length. As such, these mountains have provided a convenient corridor for northward and southward movement of both plants and animal life, but on the other hand have produced important barriers to eastern and western plant and animal movements. These effects result nat only from their height and physical nature, but also from their manifold …
8 Aviculture And Propagation,
2012
University of Nebraska-Lincoln
8 Aviculture And Propagation, Paul A. Johnsgard
Paul Johnsgard
The rearing of grouse and quail for enjoyment, profit, or stocking in the wild has been an important aspect of grouse and quail biology. The very presence of chukar and gray partridges in North America, the occurrence of ruffed grouse in Newfoundland and Nevada, the presence of bobwhites, scaled quail, and California quail in Washington, and many other examples are ample testimony to the potential value of careful propagation and release programs. Between 1938 and 1968 a total of 110,663 bobwhites, 18,136 other native quails, 7,977 grouse, and 50,568 chukar partridges were released under Pittman-Robertson programs in the United States …
Birds Of The Rocky Mountains—Species Accounts, Pages 183–196: Jaegers, Gulls, & Terns,
2012
University of Nebraska-Lincoln
Birds Of The Rocky Mountains—Species Accounts, Pages 183–196: Jaegers, Gulls, & Terns, Paul A. Johnsgard
Paul Johnsgard
Pomarine Jaeger (Stercorarius pomarinus) Parasitic Jaeger (Stercorarius parasiticus) Long-tailed Jaeger (Stercorarius longicaudus) Franklin's Gull (Larus pipixcan) Bonaparte's Gull (Larus philadelphia) Mew Gull (Larus tanus) Ring-billed Gull (Larus delawarensis) California Gull (Larus califomicus) Herring Gull (Larus argentatus) Sabine's Gull (Xema sabini) Caspian Tern (Sterna caspia) Common Tern (Sterna hirundo) Forster's Tern (Sterna forsteri) Black Tern (Chlicionias niger)
Behavior Of The Australian Musk Duck And Blue-Billed Duck,
2012
University of Nebraska-Lincoln
Behavior Of The Australian Musk Duck And Blue-Billed Duck, Paul A. Johnsgard
Paul Johnsgard
Sexual displays of the Musk Duck and Blue-billed Duck are described and illustrated. The displays of male Musk Ducks comprise a series of three forms exhibiting increasing ritualization, complexity, and time-interval constancy. All of them have conspicuous auditory characteristics as well as variously conspicuous visual features. Displays in the species appear to have evolved under the influence of intense sexual selection resulting from what is probably a more completely promiscuous mating system than occurs in any other species of Anatidae. These selective pressures have also probably promoted the evolution of such features as large size and extreme sexual dimorphism that …
Ducks, Geese, And Swans Of The World: Contents, Preface, & Introduction,
2012
University of Nebraska-Lincoln
Ducks, Geese, And Swans Of The World: Contents, Preface, & Introduction, Paul A. Johnsgard
Paul Johnsgard
Inasmuch as the primary purpose of this book is to provide information on each of the species of the waterfowl family in a standardized format and easily accessible manner, it is important that the reader have some knowledge of the basis for my sequential organization of these species. A variety of attempts to provide a "natural" classification, or one that best reflects actual evolutionary relationships, of the family Anatidae have been made in recent years, with most of them being minor variations on a scheme first proposed by Jean Delacour and Ernst Mayr in 1945. In this landmark classification, emphasis …
Ducks, Geese, And Swans Of The World: Glossary And Vernacular Name Derivations,
2012
University of Nebraska-Lincoln
Ducks, Geese, And Swans Of The World: Glossary And Vernacular Name Derivations, Paul A. Johnsgard
Paul Johnsgard
Approximate 250 terms: "Amphipoda" through "Xerophytic"
Diving Birds Of North America: 6 Comparative Life Histories And Reproductive Success Rates,
2012
University of Nebraska-Lincoln
Diving Birds Of North America: 6 Comparative Life Histories And Reproductive Success Rates, Paul A. Johnsgard
Paul Johnsgard
It is now well recognized that, like behavior, a species' life history characteristics, such as age at sexual maturity, clutch sizes, and incubation, brooding, and fledging patterns, are evolved traits that may be strongly influenced by a variety of ecological factors. Within the auks, loons, and grebes one can find variations in the age at sexual maturity and time of first breeding ranging from as little as 1 to as many as 5 or 6 years, average clutch sizes that range from 1 to 4 eggs, and substantial variations in adult survival rates and maximum longevity. However, compared with such …
Four Decades Of Christmas Bird Counts In The Great Plains: Ornithological Evidence Of A Changing Climate,
2012
University of Nebraska-Lincoln
Four Decades Of Christmas Bird Counts In The Great Plains: Ornithological Evidence Of A Changing Climate, Paul A. Johnsgard, Thomas G. Shane
Paul Johnsgard
The rationale for this book has its origins in Terry Root’s 1988 Atlas of North American Wintering Birds, which provided a baseline landmark for evaluating the nationwide winter distributions of North American birds, using data from the National Audubon Society’s annual Christmas Bird Counts birds from 1962-63 through 1971-72. Tom Shane and I speculated that an updated analysis might shed light on the possible effects of more recent climatic warming trends on bird migration and wintering patterns in the Great Plains, a region known for its severe winters and also one of our continent’s important migratory pathways and wintering regions. …
Louis A. Fuertes And The Zoological Art Of The 1926–1927 Abyssinian Expedition Of The Field Museum Of Natural History,
2012
University of Nebraska - Lincoln
Louis A. Fuertes And The Zoological Art Of The 1926–1927 Abyssinian Expedition Of The Field Museum Of Natural History, Paul A. Johnsgard
Paul Johnsgard
The year 2009 marked the 110th anniversary of the first colored reproduction of a Fuertes painting; a watercolor of two seaside sparrows published in The Auk, when Fuertes was about 25 years old. Although Fuertes' life spanned little more than a half-century, and most living ornithologists were born after his tragic 1927 death, his influence on natural history art has not lessened. This manuscript is a testimony to his enduring artistic legacy. I first looked in awe at the original set of Fuertes paintings in the summer of 1995, during a visit to the Field Museum in conjunction with my …
Comments On Species Recognition With Special Reference To The Wood Duck And The Mandarin Duck,
2012
Cornell University
Comments On Species Recognition With Special Reference To The Wood Duck And The Mandarin Duck, William C. Dilger, Paul A. Johnsgard
Paul Johnsgard
It is well known that closely related, sympatric species have evolved species-specific features which serve to minimize the possibility of "wrong" choices being made during pair formation. The amount of evolution of such species-specific features is roughly proportional to the deleterious effects of the "wrong" choices made in species recognition. Of course, if upon initial contact, the forms interbreed too freely panmixia will occur and both will eventually lose whatever genetic identity they may have had. On the other hand if, by the time of contact, the forms have incidentally developed differences sufficient to serve automatically as isolating mechanisms from …
