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- Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298 (22)
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Articles 3541 - 3570 of 4557
Full-Text Articles in Ornithology
Three Infrequent Visitors Vie For County Watchers' Attention, Jessie Maye Smith
Three Infrequent Visitors Vie For County Watchers' Attention, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
'Nature In Miniature' Described By Writer, Jessie Maye Smith
'Nature In Miniature' Described By Writer, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Rich Coloring, Striking Patterns Trademarks Of Ducks, Teals, Jessie Maye Smith
Rich Coloring, Striking Patterns Trademarks Of Ducks, Teals, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Tarrant County Check List Names 315 Species Of Birds, Jessie Maye Smith
Tarrant County Check List Names 315 Species Of Birds, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Old Trinidad Estate A Paradise In West Indies For Naturalists, Jessie Maye Smith
Old Trinidad Estate A Paradise In West Indies For Naturalists, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Early European Settlers First To Take Notice Of The Robin, Jessie Maye Smith
Early European Settlers First To Take Notice Of The Robin, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Purple Martins To Return Soon To Survey Houseing Conditions, Jessie Maye Smith
Purple Martins To Return Soon To Survey Houseing Conditions, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
World Of Birds, Watchers Described, Jessie Maye Smith
World Of Birds, Watchers Described, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Palo Pinto Sojourn Shows Bald Eagles, Jessie Maye Smith
Palo Pinto Sojourn Shows Bald Eagles, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
North American Shorebirds Gain Popularity In New Book, Jessie Maye Smith
North American Shorebirds Gain Popularity In New Book, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Kentucky Warbler (Vol. 44, No. 1), Kentucky Library Research Collections
Kentucky Warbler (Vol. 44, No. 1), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
The Evolution Of Duck Courtship, Paul A. Johnsgard
The Evolution Of Duck Courtship, Paul A. Johnsgard
Papers in Ornithology
The courtship of ducks is unusual in several aspects. In temperate zones it generally begins very early, usually on the wintering grounds, so courtship is not a manifestation of territorial proclamation and defense as is the case with many songbirds. Nor, because of its early initiation, is courtship closely correlated with gonad growth and fertilization; rather, pair formation is normally completed prior to the period of maximum gonadal activity. Therefore, reproductive behavior in ducks may be conveniently divided into an early phase of conspicuous displays associated with actual pair formation, followed by the later and less elaborate behavior patterns concerned …
Hubby Turns Into Birdman, Jessie Maye Smith
Hubby Turns Into Birdman, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Habitat Of Warblers Threatened By Course, Jessie Maye Smith
Habitat Of Warblers Threatened By Course, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Birds Wing Greeting Variety On Season's Christmas Cards, Jessie Maye Smith
Birds Wing Greeting Variety On Season's Christmas Cards, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Damage To Ocean Studied, Jessie Maye Smith
Damage To Ocean Studied, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Weather Hampers Christmas Bird Count, Jessie Maye Smith
Weather Hampers Christmas Bird Count, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
The Indian Mynah, John L. Long
The Indian Mynah, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
THE Common or Indian Mynah (Acridotheres tristis) inhabits Afghanistan, Baluchistan, southern Russian Turkestan, India, Ceylon and the Andaman Islands.
The Red-Whiskered Bulbul, John L. Long
The Red-Whiskered Bulbul, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
Widely distributed in both Africa and Asia, Bulbuls are a largely tropical group of fruit eating birds ranging in size from that of a house sparrow to a blackbird.
The Spice Finch, John L. Long
The Spice Finch, John L. Long
Journal of the Department of Agriculture, Western Australia, Series 4
THE Spice Finch (Lonchura punctulata) is also known as Nutmeg Finch or Mannikin, Spice bird, Spotted Munia, Common Munia, Ricebird and Scaly-breasted Munia.
It is an east and south east Asian species inhabiting Malaya, Singapore, Penang, India, Ceylon, Burma, Indo-China, Yunnan, Formosa and the Philippines.
The dangers associated with such a species being introduced to Western Australia are great.
Survey Of Albino Birds In Arkansas, Earl L. Hanebrink
Survey Of Albino Birds In Arkansas, Earl L. Hanebrink
Journal of the Arkansas Academy of Science
No abstract provided.
The Role Of Adventitious Reinforcement In Operant Discrimination, Alan Kamil, John W. Davenport
The Role Of Adventitious Reinforcement In Operant Discrimination, Alan Kamil, John W. Davenport
Avian Cognition Papers
Rats were trained in 2 SD-SΔ discrimination experiments in which the effects of an SD-postponement contingency during SΔ and temporal regularity of SΔ duration were assessed. Experiment I showed that discrimination is markedly facilitated by the presence of an SD-postponement contingency of either fixed or variable duration. Experiment II showed that variable-duration SΔ periods in a noncontingent schedule can also greatly enhance formation of an operant discrimination. These effects were attributed to differences in the probability of adventitious reinforcement of SΔ behavior by SD events.
Some Putative Mandarin Duck Hybrids, Paul A. Johnsgard
Some Putative Mandarin Duck Hybrids, Paul A. Johnsgard
Paul Johnsgard Collection
Prestwich (1960) and Gray (1958) have concluded, mirroring Delacour and Mayr (1945) and Seth-Smith (1922), that the Mandarin Duck is unable to hybridize, even with its nearest living relative the Wood Duck. After reviewing the literature, however, I listed (1960) the Mandarin Duck as having probably hybridized with the Wood Duck, and also mentioned the possibility of hybridization with one or more species of Anas. Since then I have been hopeful that actual specimens of Mandarin Duck hybrids might be located to substantiate this vulnerable position, and it is now possible to report on some probable hybrids.
Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan
Studies On The Avifauna Of Burgner Acres, An Upland Stream-Side, Ash-Elm Forest And Its Edge, Kerry Lee Bryan
Masters Theses
No abstract provided.
Studies On Blood Parasites Of Birds In Coles County, Illinois, Edward G. Fox
Studies On Blood Parasites Of Birds In Coles County, Illinois, Edward G. Fox
Masters Theses
No abstract provided.
7 Species Of American Birds Adorn Cards For Christmas, Jessie Maye Smith
7 Species Of American Birds Adorn Cards For Christmas, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Record Number Of Whoopers Nest At Aransas Winter Refuge, Jessie Maye Smith
Record Number Of Whoopers Nest At Aransas Winter Refuge, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Fort Worth Well Represented At Ornithological Gathering, Jessie Maye Smith
Fort Worth Well Represented At Ornithological Gathering, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Birds Residing At Area Lake Signify Changing Of Seasons, Jessie Maye Smith
Birds Residing At Area Lake Signify Changing Of Seasons, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Goose Situation In Wisconsin Appears To Be Under Control, Jessie Maye Smith
Goose Situation In Wisconsin Appears To Be Under Control, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.