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Articles 3121 - 3150 of 4557
Full-Text Articles in Ornithology
Waterfowl Portraits, Paul A. Johnsgard
Waterfowl Portraits, Paul A. Johnsgard
Papers in Ornithology
SINCE HIS days as a boy on the North Dakota prairies, Paul A. Johnsgard has "measured his winters, not by conventional time units, but in the days it took for the snow geese to return from their wintering grounds...." The author of five books: Song of the North Wind-A Story of the Snow Goose; Grouse and Quails of North America; Waterfowl- Their Biology and Natural History; Animal Behavior; and Handbook of Waterfowl Behavior, and of numerous articles in national magazines and over 40 technical papers, he is eminently qualified to capture in pen and ink the very essence of Nebraska's …
Wren Well Known For Bursts Of Song, Jessie Maye Smith
Wren Well Known For Bursts Of Song, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Observers Busied By Migrant Flights, Jessie Maye Smith
Observers Busied By Migrant Flights, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Oft-Hunted Pheasant Latecomer To America, Jessie Maye Smith
Oft-Hunted Pheasant Latecomer To America, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Brainy Crows Entitled To Boldly Superior Airs, Jessie Maye Smith
Brainy Crows Entitled To Boldly Superior Airs, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Identifying Warblers Not Easy In Autumn, Jessie Maye Smith
Identifying Warblers Not Easy In Autumn, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Norther Brings Area Influx Of Wild Fowl, Jessie Maye Smith
Norther Brings Area Influx Of Wild Fowl, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Flight Masters Visit, Prior To Mexico Trip, Jessie Maye Smith
Flight Masters Visit, Prior To Mexico Trip, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
U.S. Pact With Japan Protects 189 Species, Jessie Maye Smith
U.S. Pact With Japan Protects 189 Species, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Biology Of Northern Bald Eagles (Haliaeetus Leucocephalus Alascanus) On Amchitka Island, Alaska, Steven K. Sherrod
Biology Of Northern Bald Eagles (Haliaeetus Leucocephalus Alascanus) On Amchitka Island, Alaska, Steven K. Sherrod
Theses and Dissertations
Bald Eagles on Amchitka Island, Alaska, were studied from 1969-1972. From 1970-1972 the population averaged 214.6 eagles. The average ration was 66% adults to 34% subadults. The eagles move to and from the island in relation to significant food sources (especially the garbage dump). An increase in active nests occurred from 1969-1972 due to an increase in food. The average percentage of nests containing young from 1970-1972 was 71.28%. During these three years, the average number of young known in a nest per nesting attempt was 1.24, and the average number of young known in a nest per nest containing …
Birds Join In Salute To Girl Scout Camp, Jessie Maye Smith
Birds Join In Salute To Girl Scout Camp, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Kentucky Warbler (Vol. 50, No. 3), Kentucky Library Research Collections
Kentucky Warbler (Vol. 50, No. 3), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
Dakota Site To House Bald Eagle Grounds, Jessie Maye Smith
Dakota Site To House Bald Eagle Grounds, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Nature Center Stroll Good For 48 Species, Jessie Maye Smith
Nature Center Stroll Good For 48 Species, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Nature Center Group Lines Up Field Trips, Jessie Maye Smith
Nature Center Group Lines Up Field Trips, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Not All Bird Nests Fit Popular Concept, Jessie Maye Smith
Not All Bird Nests Fit Popular Concept, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Owl Disc Calls Up Quartet Of Warblers, Jessie Maye Smith
Owl Disc Calls Up Quartet Of Warblers, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Depredations Feared From Parakeet Influx, Jessie Maye Smith
Depredations Feared From Parakeet Influx, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Brazos Bend Site Birders Bonanza, Jessie Maye Smith
Brazos Bend Site Birders Bonanza, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Kentucky Warbler (Vol. 50, No. 2), Kentucky Library Research Collections
Kentucky Warbler (Vol. 50, No. 2), Kentucky Library Research Collections
The Kentucky Warbler
No abstract provided.
53 Species Make Endangered List, Jessie Maye Smith
53 Species Make Endangered List, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Loss Of Most Of Mulberry Crop This Season Severe Blow To Birds, Jessie Maye Smith
Loss Of Most Of Mulberry Crop This Season Severe Blow To Birds, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Bird Stories Woven Into Easter Narrative, Jessie Maye Smith
Bird Stories Woven Into Easter Narrative, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Bird Watcher Baffled By Cries In The Night, Jessie Maye Smith
Bird Watcher Baffled By Cries In The Night, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Nesting Ecology Of The Double-Crested Cormorant (Phalacrocorax Auritus Auritus) On Utah Lake, Ronald M. Mitchell
Nesting Ecology Of The Double-Crested Cormorant (Phalacrocorax Auritus Auritus) On Utah Lake, Ronald M. Mitchell
Theses and Dissertations
Research on the nesting of the Double-crested Cormorant (Phalacrocorax auritus auritus) was undertaken to determine the nesting ecology of the bird on Utah Lake, Utah County, and the possible effects that diking Provo Bay would have on the cormorants breeding there. In 1973, two colonies in Provo Bay were visited weekly to determine laying dates, incubation period, clutch size, and hatching dates. Another colony, located on the dike of the Geneva Steel Reservoir, was visited daily during the spring and summer of 1973. At this colony, egg-laying occurred from 13 April to 17 May. The average clutch size was 3.8, …
Plans For Steel Shot On Bird Hunts Eyed, Jessie Maye Smith
Plans For Steel Shot On Bird Hunts Eyed, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Pair Find Inca Doves On Farm Near Fw, Jessie Maye Smith
Pair Find Inca Doves On Farm Near Fw, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Gulf Trip Cures Itch To View Other Fowl, Jessie Maye Smith
Gulf Trip Cures Itch To View Other Fowl, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.
Quail Music: The Complex Calls Of A Bird Contain Clues To Its Evolution, Paul A. Johnsgard
Quail Music: The Complex Calls Of A Bird Contain Clues To Its Evolution, Paul A. Johnsgard
Papers in Ornithology
Ethological research has revealed that the vocal communications of birds are highly specialized behavioral adaptations that can shed light on evolutionary processes. The calls of the quails of the New World are a good example. This group of birds includes some thirty species, about half of which are limited to the tropical forests of Central and northern South America. The other species are North American, ranging as far north as southern Canada. Morphological evidence favors the view that the most generalized, or “primitive,” of these species are the tree quails of Mexico’s moist mountain forests. The more open-country and arid-adapted …
Two Types Of Grebes Observed During Weekend Field Trip At Benbrook, Jessie Maye Smith
Two Types Of Grebes Observed During Weekend Field Trip At Benbrook, Jessie Maye Smith
Jessie Maye Smith Birds and Watchers Columns Collection
No abstract provided.