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Full-Text Articles in Animal Sciences
Waterfowl Of North America, Revised Edition [Complete Work], Paul A. Johnsgard
Waterfowl Of North America, Revised Edition [Complete Work], Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
“We cannot expect to learn from or communicate directly with waterfowl; they speak separate languages, hear different voices, know other sensory worlds. They transcend our own perceptions, make mockery of our national boundaries, ignore our flyway concepts. They have their own innate maps, calendars, and compasses, each older and more remarkable than our own. We can only delight in their flying skills, marvel at their regular and precise movements across our continent, take example from their persistence in the face of repeated disaster. They are a microcosm of nature, of violent death and abundant rebirth, of untrammeled beauty and instinctive …
Waterfowl Of North America: Identification Key To North American Waterfowl, Paul A. Johnsgard
Waterfowl Of North America: Identification Key To North American Waterfowl, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The key on the following pages provides an efficient means of identifying virtually all North American waterfowl that may be examined in the hand. The procedure for using it is comparable to that used for all such dual-choice or "dichotomous" keys. One simply chooses which of the initial descriptive couplets (A or A') best fits the unknown bird. Having chosen one of these, the pair of descriptive couplets (a and a') immediately below the chosen alternative is next considered, without further regard for the rejected one. Subsequent choices, which are sequentially numbered (1 and 1', 2 and 2', etc.) must …
Waterfowl Of North America: Hunting And Recreational Values Of North American Waterfowl, Paul A. Johnsgard
Waterfowl Of North America: Hunting And Recreational Values Of North American Waterfowl, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
It is almost as difficult to find individuals opposed to waterfowl conservation as it is to hear Americans speaking out against motherhood or corn on the cob. Yet, in a real sense, it has been the American tradition of unchecked population expansion, taming the wilderness, and converting prairies and marshes into cornfields that has nearly spelled disaster for some of our native waterfowl. Of a wetland area in the United States that originally covered some 127 million acres, nearly 50 million acres have already been drained and lost as waterfowl habitat. Marshes have not only been converted to farmland but …
Waterfowl Of North America: Frontmatter & Preface, Paul A. Johnsgard
Waterfowl Of North America: Frontmatter & Preface, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Contents
Lists of tables and maps
List of plates
Preface
It was with a considerable degree of hesitation that, during the winter of 1970-71, I sat down and contemplated the scope and structure of a possible book on the waterfowl of North America. On my bookshelf behind me were copies of A. C. Bent's Life Histories of North American Wild Fowl, F. H. Kortright's The Ducks, Geese, and Swans of North America, and Jean Delacour's The Waterfowl of the World. My task, as I saw it, was to try to develop a book that might be useful …
Waterfowl Of North America: The Biology Of Waterfowl, Paul A. Johnsgard
Waterfowl Of North America: The Biology Of Waterfowl, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The term waterfowl, at least as it is applied in North America, is generally restricted to the ducks, geese, and swans of the bird family Anatidae. About 140 species of this group of swimming and diving birds have survived throughout the world to the present day, and four more have become extinct during historical times. Many more species have existed in the past; the fossil record of this family extends back roughly fifty million years to very early Cenozoic times, although very little is known of the actual appearance and structure of the earliest form of waterfowl. Presumably these ancestral …
Waterfowl Of North America: Waterfowl Distributions And Migrations In North America, Paul A. Johnsgard
Waterfowl Of North America: Waterfowl Distributions And Migrations In North America, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The species of waterfowl breeding in North America have distribution patterns that collectively reflect the past geologic and ecological histories of this continent. In general, our waterfowl species may be grouped into those that are limited (endemic) to North America, those that are shared between North and South America, and those that are shared with Europe and/or Asia. Of the forty-four species known to breed in continental North America, the resulting grouping of breeding distributions is as follows:
Limited to North America: Snow goose (also on Greenland and Wrangel Island) , Ross goose, Canada goose (also on Greenland), wood duck, …
Waterfowl Of North America: Whistling Ducks Tribe Dendrocygnini, Paul A. Johnsgard
Waterfowl Of North America: Whistling Ducks Tribe Dendrocygnini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Whistling ducks comprise a group of nine species that are primarily of tropical and subtropical distribution. In common with the swans and true geese (which with them comprise the subfamily Anserinae), the included species have a reticulated tarsal surface pattern, lack sexual dimorphism in plumage, produce vocalizations that are similar or identical in both sexes, form relatively permanent pair bonds, and lack complex pair-forming behavior patterns. Unlike the geese and swans, whistling ducks have clear, often melodious whistling voices that are the basis for their group name. The alternative name, tree ducks, is far less appropriate, since few of the …
North America’S Ducks, Geese And Swans In The 21st Century: A 2010 Supplement To Waterfowl Of North America, Paul A. Johnsgard
North America’S Ducks, Geese And Swans In The 21st Century: A 2010 Supplement To Waterfowl Of North America, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Since the 1975 publication of Waterfowl of North America, a great deal of ornithological literature has appeared concerning North American ducks, geese & swans. The most significant of these are the species accounts in the American Ornithologists’ Union The Birds of North America (B.O.N.A.) series, 46 of which were published between 1993 and 2003, and which include all the species known to breed in the United States and Canada (see references).
Population data of wild species are constantly changing, and sometimes of limited accuracy, but long-term averages or trends are often significant. National population surveys such as the annual U.S. …
Waterfowl Of North America: Perching Ducks Tribe Cairinini, Paul A. Johnsgard
Waterfowl Of North America: Perching Ducks Tribe Cairinini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The perching ducks and related gooselike forms are a diverse array of some fourteen species that are largely subtropical to tropical in occurrence. Although they vary in size from as little as about a half a pound in the "pygmy geese" (Nettapus) to more than twenty pounds in the spur-winged geese (Plectropterus), all possess some common features.*These include a tendency toward hole-nesting, especially in trees; sharp claws; associated perching abilities; and long tails that presumably increase braking effectiveness when landing in trees. Nearly all species exhibit extensive iridescent coloration in the body, especially on the upper …
Waterfowl Of North America: Pochards (Fresh Water Diving Ducks) Tribe Aythyini, Paul A. Johnsgard
Waterfowl Of North America: Pochards (Fresh Water Diving Ducks) Tribe Aythyini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Until recent classifications by Jean Delacour and others, the pochard group was not taxonomically distinguished from the more marine-adapted sea ducks, here included in the following tribe Mergini. Nevertheless, the pochards are a readily definable group of mostly medium-sized ducks that differ from their close relatives, the surface-feeding ducks, in several respects. Their legs are situated somewhat farther back on the body, so that they are less adept at walking on land; their feet and associated webs are larger, increasing diving effectiveness (reflected by the increased length of the outer toes); and their bills are generally broad, heavy, and adapted …
Waterfowl Of North America: Swans And True Geese Tribe Anserini, Paul A. Johnsgard
Waterfowl Of North America: Swans And True Geese Tribe Anserini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. 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 …
Waterfowl Of North America: Surface-Feeding Ducks Tribe Anatini, Paul A. Johnsgard
Waterfowl Of North America: Surface-Feeding Ducks Tribe Anatini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The surface-feeding, dabbling, or similarly described ducks are a group of about thirty-six species of mostly freshwater ducks that occur throughout the world. Many of them are temperate or arctic-breeding species that nest on dry land near freshwater ponds, marshes, rivers, or similar rather shallow bodies of water. Associated with this breeding habitat are their adaptations for foraging by "tipping-up" rather than by diving for food, an ability to land and take off abruptly from small water areas or land, and a moderately good walking ability but reduced perching capabilities as compared with perching ducks. Also unlike perching ducks, iridescent …
Waterfowl Of North America: Index, Paul A. Johnsgard
Waterfowl Of North America: Index, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
English vernacular names of waterfowl indexed here are in general those used in this book for species or larger groupings. Vernacular names for subspecies are only indexed to those pages where they may be listed among the subspecies included in the species accounts. Pages that include the primary discussions of each species are indicated by boldface under the species' vernacular name and its scientific name. Species other than waterfowl are not indexed.
acuta, Anas, 257-267
[through]
Wood Duck, 13, 14, 16, 20, 24,28, 35, 161, 169-180, 480, 486, 490; map, 172
Waterfowl Of North America: Color Photographs (Following Page 50), Paul A. Johnsgard
Waterfowl Of North America: Color Photographs (Following Page 50), Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Trumpeter Swan, Adult (drinking)
Lesser Snow Goose (Blue Phase), Adult and young
Lesser Canada Goose, Adults
Atlantic Brant, Adult
Barnacle Goose, Adults
Wood Duck, Adult Male
American Wigeon, Pair
Gadwall, Pair
Green-winged Teal, Pair
Mexican Mallard, Adult Male
Florida Mallard, Pair
Northern Pintail, Pair
Blue-winged Teal, Pair
Cinnamon Teal, Pair
Shoveler, Pair
Canvasback, Pair
Redhead, Pair
Ring-necked Duck, Pair
Greater Scaup, Pair
King Eider, Pair
Steller Eider, Adults
Harlequin Duck,Male
Surf Scoter, Male
Bufflehead, Pair
Barrow Goldeneye, Pair
Common Goldeneye, Pair
Hooded Merganser, Displaying Male
Red-breasted Merganser, Male
Common Merganser, Pair
Ruddy Duck, Male
Waterfowl Of North America: Black & White Photographs (Following Page 338), Paul A. Johnsgard
Waterfowl Of North America: Black & White Photographs (Following Page 338), Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Gadwall, Pair
Gadwall, Adult male
Baikal Teal, Pair
American Green-winged Teal, Pair
Baikal Teal, Adult male
American Green-winged Teal, Adult male
Common Mallard, Adult male
Common Mallard, Brooding female
Mexican Mallard, Pair
Florida Mallard, Pair
Northern Pintail, Adult male
Bahama Pintail, Adult male
Garganey, Adult male
Garganey, Pair
Blue-winged Teal, Pair
Cinnamon Teal, Pair
Northern Shoveler, Adult male
Northern Shoveler, Pair
Canvasback, Adult female
Canvasback, Pair
Redhead, Adult male
Redhead, Adult female
Ring-necked Duck, Pair
Ring-necked Duck, Pair
Tufted Duck, Pair
Greater Scaup, Pair
Greater Scaup, Adult male
Lesser Scaup, Pair
American Common Eider, Adult males
American Common Eider, Group …
Waterfowl Of North America: Name Derivations, Paul A. Johnsgard
Waterfowl Of North America: Name Derivations, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Excluding extralimital species and most subspecies unless these are sometimes considered full species.
Aix [through] Spatula
Waterfowl Of North America: Black & White Photographs (Following Page 450), Paul A. Johnsgard
Waterfowl Of North America: Black & White Photographs (Following Page 450), Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Steller Eider, Pair
Spectacled Eider, Adult female
Spectacled Eider, Adult male
Oldsquaw, Male in Summer
Oldsquaw, Male in Winter
Oldsquaw, Female in late Spring
Harlequin Duck, Adult male
Harlequin Duck, Pair
American Black Scoter, Male (Courtesy Felix Neck Wildlife Trust)
European Black Scoter, Pair
Surf Scoter, Male (San Diego Zoo Photo)
Surf Scoter, Pair
White-winged Scoter, Male (Courtesy Felix Neck Wildlife Trust)
White-winged Scoter, Adult female
Bufflehead, Adult males
Bufflehead, Pair
Barrow Goldeneye, Adult male
Common Goldeneye, Pair
Common Goldeneye, Courting pair
Smew, Pair
Smew, Adult male
Hooded Merganser, Adult female
Hooded Merganser, Adult male
Red-breasted Merganser, Adult male
Red-breasted …
Waterfowl Of North America: Sources, Paul A. Johnsgard
Waterfowl Of North America: Sources, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Approximately 500 citations.
See also the updated bibliography in the 2010 supplement: "North America’s Ducks, Geese and Swans in the 21st Century"
Waterfowl Of North America: Stiff-Tailed Ducks Tribe Oxyurini, Paul A. Johnsgard
Waterfowl Of North America: Stiff-Tailed Ducks Tribe Oxyurini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
This bizarre group of diving ducks differs from the rest of the Anatidae in so many respects that by any standard it demands special attention. Of the eight species that are presently recognized, most are placed in the genus Oxyura, which name refers to the stiffened, elongated tail feathers typical of the group. In these species the tail feathers extend well beyond the rather short tail coverts and are usually narrow-vaned, so that the individual rectrices tend to separate when spread. The feet are unusually large, and the legs are placed farther to the rear of the body than …
Waterfowl Of North America: Black & White Photographs (Following Page 210), Paul A. Johnsgard
Waterfowl Of North America: Black & White Photographs (Following Page 210), Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
Fulvous Whistling Duck, Pair
Cuban Whistling Duck, Pair
Black-bellied Whistling Duck, Pair
Mute Swan, Subadult
Mute Swan, Adults
Trumpeter Swan, Pair
Whistling Swan, Adult
White-fronted Goose, Adult
White-fronted Goose, Adult
Lesser Snow Goose, Adult
Lesser Snow Goose, Adults
Ross Goose, Adults
Emperor Goose, Adult
Aleutian Canada Goose, Adult
Cackling Canada Goose, Adult
Atlantic Canada Goose, Pair
Baffin Island Canada Goose, Pair
Barnacle Goose, Female and brood
Pacific Brant Goose, Pair at nest
Pacific Brant Goose, Adult
Muscovy Duck, Adult male
Wood Duck, Adult male
Wood Duck, Pair resting
European Wigeon, Adult males
European Wigeon, Pair
American Wigeon, Adult male
American …
Waterfowl Of North America: Sea Ducks Tribe Mergini, Paul A. Johnsgard
Waterfowl Of North America: Sea Ducks Tribe Mergini, Paul A. Johnsgard
Waterfowl of North America, Revised Edition (2010) by Paul A. Johnsgard
The sea ducks are a group of mostly arctic-adapted diving ducks that usually winter in coastal waters and typically breed in tundra situations or in northern forests. All twenty species (two of which are now extinct) depend predominantly on animal sources of food, and some feed exclusively on such materials. These foods include shellfish, mollusks, other invertebrates, and aquatic vertebrates such as fish. In general the sea ducks are thus not regarded as highly as table birds as are the surface-feeding ducks and some of the more vegetarian pochard species. Like the pochards, their legs are placed well to the …