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2014

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Articles 1 - 30 of 83

Full-Text Articles in Ornithology

Ua1c11/55 Gordon Wilson Photo Collection, Wku Archives Dec 2014

Ua1c11/55 Gordon Wilson Photo Collection, Wku Archives

WKU Archives Collection Inventories

Photographs taken by and of Gordon Wilson.


Avian Diversity Across Three Distinct Agricultural Landscapes In Guadalupe, Chiriquí Highlands, Panama, Jarred Jones Dec 2014

Avian Diversity Across Three Distinct Agricultural Landscapes In Guadalupe, Chiriquí Highlands, Panama, Jarred Jones

Independent Study Project (ISP) Collection

Deforestation of tropical forest for agricultural purposes threatens habitat loss of native species. The value of various agricultural landscapes in conserving avian populations is useful in determining diversity-conscious development plans. However, generalized results from regionalscale studies cannot be implemented to insular avian habitats. This study serves as the only current avian diversity study of the Chiriquí Highlands. To determine the effect of agricultural land use within an insular avian habitat, I compared avian diversity and site population similarity in Guadalupe, Chiriquí Highlands of the Talamanca Range, Panama. I hypothesized that avian diversity is greatest at forest edge followed by forest …


The Effect Of Weather During Rearing On Morphometric Traits Of Juvenile Cliff Swallows, Erin A. Roche, Mary Bomberger Brown, Charles R. Brown Dec 2014

The Effect Of Weather During Rearing On Morphometric Traits Of Juvenile Cliff Swallows, Erin A. Roche, Mary Bomberger Brown, Charles R. Brown

School of Natural Resources: Faculty Publications

Episodes of food deprivation may change how nestling birds allocate energy to the growth of skeletal and feather morphological traits during development. Cliff swallows (Petrochelidon pyrrhonota) are colonial, insectivorous birds that regu­larly experience brief periods of severe weather–induced food deprivation during the nesting season which may affect offspring development. We investigated how annual variation in timing of rearing and weather were associated with length of wing and tail, skeletal traits, and body mass in juvenile cliff swallows reared in southwestern Nebraska during 2001–2006. As predicted under conditions of food deprivation, nestling skeletal and feather measurements were generally smaller …


Fall Field Report, August–November 2014, W. Ross Silcock Dec 2014

Fall Field Report, August–November 2014, W. Ross Silcock

Nebraska Bird Review

My first paragraph from last year's fall report read as follows: "In most ways, this was a routine fall season. Most interesting from an ongoing point of view were quite a large number of sightings of passerines at rather late dates, notably among Empidonax flycatchers, wood warblers, native sparrows, tanagers, towhees, grosbeaks, and buntings." This fall was no different; the trend seems to be that final sighting dates for many species are pushing against their latest expected dates.

There were several tidbits of interest, more or less unrelated, but perhaps most notable takeaways for the season were the number of …


Holdrege Fall Field Days, Janis Paseka Dec 2014

Holdrege Fall Field Days, Janis Paseka

Nebraska Bird Review

The 2014 NOU Fall Field Days took place in Holdrege at the Super 8 Motel on Sept. 19–21. There were about 35 in attendance at the meeting, which was organized by Dave Heidt and Betty Grenon.

On Friday evening Dave Heidt led a humor-filled discussion on bird songs and calls and ways to remember them, as audience members suggested their own mnemonic devices. On Saturday evening, T. J. Walker gave a presentation on the Nebraska Game and Parks' program of habitat rehabilitation to benefit Ring-necked Pheasants and other species. Field trip destinations on Saturday and on Sunday morning included Harlan …


Index To Volume 82 Dec 2014

Index To Volume 82

Nebraska Bird Review

Abegglen, Jeff 192
Abraham, K. F. 85
Aderman, T. 80
Addy, Darren 47
Adrian, Brad 47
Ahlschwede, Carla 40
Akers, Danny 100
Alberts: Byron 143; Deb 143
Alisaukis, R. T. 85
Allen: Edward 3, 48, 143, 153; Jan 48
Allison, Scott 49
American Ornithologists' Union 192

. . .

Wright, Rick 49
Wylie, Bruce 41

Yantachka, Jennifer 143
Yellowlegs: Greater 55, 88, 108, 160, 183; Lesser 56, 88, 108, 160, 183
Yellowtbroat, Common 26, 67, 91, 117, 175, 184

Zahurones, Penny 41
Ziolkowski, D. J. 80


Subscription And Organization Information [December 2014] Dec 2014

Subscription And Organization Information [December 2014]

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101.

Memberships in the NOU (on a calendar-year basis only): Active Household (one or more people) $25; Sustaining …


In Memory Of Margaret Triplett Dec 2014

In Memory Of Margaret Triplett

Nebraska Bird Review

The NOU lost a longtime member in Kearney on August 7, 2014, when Margaret Sealing Triplett died.


Summary Of Raptor Banding Efforts At Hitchcock Nature Center, Fall 2014, Jerry Toll Dec 2014

Summary Of Raptor Banding Efforts At Hitchcock Nature Center, Fall 2014, Jerry Toll

Nebraska Bird Review

The 2014 season was by far the most unusual and frustrating season since the inception of raptor banding and hawk watch at the Hitchcock Nature Center in Pottawatomie County, Iowa, just north of Crescent. Banding diurnal raptors commenced on September 7th on schedule. The month of September was typical as far as capture rates and weather systems, although we were stymied somewhat by the lack of availability of European Starlings for lure birds. House Sparrows proved a nearly adequate substitute.

During the peak period of October, weather systems that drive diurnal raptor migration worked against monitoring efforts by forcing migration …


First Documented Nest Of Northern Saw-Whet Owl In Nebraska, Wayne J. Mollhoff Dec 2014

First Documented Nest Of Northern Saw-Whet Owl In Nebraska, Wayne J. Mollhoff

Nebraska Bird Review

Northern Saw-whet Owl was added to our avifauna with a list prepared by Taylor and Van Vleet (1889). The first suggestion of breeding was a second-hand report included in a paper presented at the first meeting of the Nebraska Ornithologists' Union in 1899 by M. A. Carriker, Jr., who "was told of a set of five eggs collected near Nebraska City about seven years ago" (1900), but which included no other details. At the next meeting, Bruner (1901) cited that report to include the species on a list of birds that breed in the state. Bruner, Swenk, and Walcott later …


Nebraska Bird Review (December 2014) 82(4), Whole Issue Dec 2014

Nebraska Bird Review (December 2014) 82(4), Whole Issue

Nebraska Bird Review

Fall Field Report, August–November 2014 ... 150

Holdrege Fall Field Days … 181

Summary of Raptor Banding Efforts at Hitchcock Nature Center, Fall 2014 ... 186

First Documented Nest of Northern Saw-whet Owl in Nebraska ... 189

In Memory of Margaret Triplett … 194

Index to Volume 82 … 195

Subscription and Organization Information ... 207


Comparative Genomics Reveals Insights Into Avian Genome Evolution And Adaptation, Guojie Zhang, Cai Li, Qiye Li, Bo Li, Dennis M. Larkin, Chul Lee, Jay F. Storz, Agostinho Antunes, Matthew J. Greenwold, Robert W. Meredith, Anders Ödeen, Jie Cui, Qi Zhou, Luohao Xu, Hailin Pan, Zongji Wang, Lijun Jin, Pei Zhang, Haofu Hu, Wei Yang, Jiang Hu, Jin Xiao, Zhikai Yang, Yang Liu, Qiaolin Xie, Hao Yu, Jinmin Lian, Ping Wen, Fang Zhang, Hui Li, Yongli Zeng, Zijun Xiong, Shiping Liu, Long Zhou, Zhiyong Huang, Na An, Jie Wang, Quimei Zheng, Yingqi Xiong, Guangbiao Wang, Bo Wang, Jingjing Wang, Yu Fan, Rute R. Da Fonseca, Alonzo Alfaro-Núñez, Mikkel Schubert, Ludovic Orlando, Tobias Mourier, Jason T. Howard, Ganeshkumar Ganapathy, Andreas Pfenning, Osceola Whitney, Miriam V. Rivas, Erina Hara, Julia Smith, Marta Farré, Jitendra Narayan, Gancho Slavov, Michael N. Romanov, Rui Borges, João Paulo Machado, Imran Khan, Mark S. Springer, John Gatesy, Federico G. Hoffmann, Juan C. Opazo, Olle Håstad, Roger H. Sawyer, Heebal Kim, Kyu-Won Kim, Hyeon Jeong Kim, Seoae Cho, Ning Li, Yinhua Huang, Michael W. Bruford, Xiangjiang Zhan, Andrew Dixon, Mads F. Bertelsen, Elizabeth Derryberry, Wesley Warren, Richard K. Wilson, Shengbin Li, David A. Ray, Richard E. Green, Stephen J. O'Brien, Darren Griffin, Warren E. Johnson, David Haussler, Oliver A. Ryder, Eske Willerslev, Gary R. Graves, Per Alström, Jon Fjeldså, David P. Mindell, Scott V. Edwards, Edward L. Braun, Carsten Rahbek, David W. Burt, Peter Houde, Yong Zhang, Huanming Yang, Jian Wang, Avian Genome Consortium, Erich D. Jarvis, M. Thomas P. Gilbert, Jun Wang Dec 2014

Comparative Genomics Reveals Insights Into Avian Genome Evolution And Adaptation, Guojie Zhang, Cai Li, Qiye Li, Bo Li, Dennis M. Larkin, Chul Lee, Jay F. Storz, Agostinho Antunes, Matthew J. Greenwold, Robert W. Meredith, Anders Ödeen, Jie Cui, Qi Zhou, Luohao Xu, Hailin Pan, Zongji Wang, Lijun Jin, Pei Zhang, Haofu Hu, Wei Yang, Jiang Hu, Jin Xiao, Zhikai Yang, Yang Liu, Qiaolin Xie, Hao Yu, Jinmin Lian, Ping Wen, Fang Zhang, Hui Li, Yongli Zeng, Zijun Xiong, Shiping Liu, Long Zhou, Zhiyong Huang, Na An, Jie Wang, Quimei Zheng, Yingqi Xiong, Guangbiao Wang, Bo Wang, Jingjing Wang, Yu Fan, Rute R. Da Fonseca, Alonzo Alfaro-Núñez, Mikkel Schubert, Ludovic Orlando, Tobias Mourier, Jason T. Howard, Ganeshkumar Ganapathy, Andreas Pfenning, Osceola Whitney, Miriam V. Rivas, Erina Hara, Julia Smith, Marta Farré, Jitendra Narayan, Gancho Slavov, Michael N. Romanov, Rui Borges, João Paulo Machado, Imran Khan, Mark S. Springer, John Gatesy, Federico G. Hoffmann, Juan C. Opazo, Olle Håstad, Roger H. Sawyer, Heebal Kim, Kyu-Won Kim, Hyeon Jeong Kim, Seoae Cho, Ning Li, Yinhua Huang, Michael W. Bruford, Xiangjiang Zhan, Andrew Dixon, Mads F. Bertelsen, Elizabeth Derryberry, Wesley Warren, Richard K. Wilson, Shengbin Li, David A. Ray, Richard E. Green, Stephen J. O'Brien, Darren Griffin, Warren E. Johnson, David Haussler, Oliver A. Ryder, Eske Willerslev, Gary R. Graves, Per Alström, Jon Fjeldså, David P. Mindell, Scott V. Edwards, Edward L. Braun, Carsten Rahbek, David W. Burt, Peter Houde, Yong Zhang, Huanming Yang, Jian Wang, Avian Genome Consortium, Erich D. Jarvis, M. Thomas P. Gilbert, Jun Wang

Jay F. Storz Publications

Birds are the most species-rich class of tetrapod vertebrates and have wide relevance across many research fields. We explored bird macroevolution using full genomes from 48 avian species representing all major extant clades. The avian genome is principally characterized by its constrained size, which predominantly arose because of lineage-specific erosion of repetitive elements, large segmental deletions, and gene loss. Avian genomes furthermore show a remarkably high degree of evolutionary stasis at the levels of nucleotide sequence, gene synteny, and chromosomal structure. Despite this pattern of conservation, we detected many non-neutral evolutionary changes in protein-coding genes and noncoding regions. These analyses …


Population Genetics Of Seaside Sparrow (Ammodramus Maritimus) Subspecies Along The Gulf Of Mexico., Stefan Woltmann, Phillip C. Stouffer, Christine M. Bergeon Burns, Mark S. Woodrey, Mollie F. Cashner, Sabrina S. Taylor Nov 2014

Population Genetics Of Seaside Sparrow (Ammodramus Maritimus) Subspecies Along The Gulf Of Mexico., Stefan Woltmann, Phillip C. Stouffer, Christine M. Bergeon Burns, Mark S. Woodrey, Mollie F. Cashner, Sabrina S. Taylor

CREC Publications

Seaside Sparrows (Ammodramus maritimus) along the Gulf of Mexico are currently recognized as four subspecies, including taxa in Florida (A. m. juncicola and A. m. peninsulae) and southern Texas (Ammodramus m. sennetti), plus a widespread taxon between them (A. m. fisheri). We examined population genetic structure of this "Gulf Coast" clade using microsatellite and mtDNA data. Results of Bayesian analyses (Structure, GeneLand) of microsatellite data from nine locations do not entirely align with current subspecific taxonomy. Ammodramus m. sennetti from southern Texas is significantly differentiated from all other populations, but we found evidence of an admixture zone with A. m. …


Data For Henson Et Al. 2014, Shandelle M. Henson, James L. Hayward, Gordon Atkins, Amanda Sandler, Wadenerson Saint Martin Nov 2014

Data For Henson Et Al. 2014, Shandelle M. Henson, James L. Hayward, Gordon Atkins, Amanda Sandler, Wadenerson Saint Martin

Faculty Publications

These data are archived for the paper "Changing sea surface temperature alters timescale of reproductive synchrony in seabirds" by Henson et al., currently submitted to Nature.


Kentucky Warbler (Vol. 90, No. 4), Kentucky Library Research Collections Nov 2014

Kentucky Warbler (Vol. 90, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


The Fat Of The Matter: How Dietary Fatty Acids Can Affect Exercise Performance, Barbara J. Pierce, Scott R. Mcwilliams Nov 2014

The Fat Of The Matter: How Dietary Fatty Acids Can Affect Exercise Performance, Barbara J. Pierce, Scott R. Mcwilliams

Biology Faculty Publications

Fatty-acid composition of fat stores affects exercise performance in a variety of vertebrates although few such studies focus on flying vertebrates such as migratory birds, which are exceptional exercisers. We first discuss the natural variation in quality of fat available in natural foods eaten by migratory birds and their behavioral preferences for specific fatty acids in these foods. We then outline three proposed hypotheses for how dietary fatty acids can affect exercise performance, and some of the evidence to date that pertains to these hypotheses with special emphasis on the exercise performance of migratory birds. In theory, selectively feeding on …


Palo Alto Battlefield National Historical Park Breeding Bird Monitoring Data Fy 2014, Kenneth D. Pruitt Nov 2014

Palo Alto Battlefield National Historical Park Breeding Bird Monitoring Data Fy 2014, Kenneth D. Pruitt

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Data are part of the GULN Inventory and Monitoring Program Land bird monitoring project for PAAL. Data were collected by Kenneth Pruit through a cooperative agreement with GULN and UT Brownsville in 2014. A separate reference is available for the Field Sheets that accompanies this data set.

https://irma.nps.gov/DataStore/Reference/Profile/2218507


The Figure Of Bitu-Man, Paul Royster Oct 2014

The Figure Of Bitu-Man, Paul Royster

University of Nebraska-Lincoln Libraries: Faculty Publications

The ominously imposing figure in the above illustration is “the Syncrude bird deterrent device, locally known as ‘Bitu-man’.” He stands (or stood—the original image was from the late 1970s) in the tailings pond of the Syncrude Canada Ltd. oil sands mining operation along the Athabasca River near Fort McMurray in northeastern Alberta. That operation surface mines (i.e., strip mines) bitumen-impregnated sand, processes it with hot water and steam, and discharges the liquid effluent or “tailings” into a pond covering roughly 3000 hectares (11 square miles). (Google Map coordinates: 56.9°N, -111.3° W). Residue bitumen collects on the surface and poses a …


Breeding Time In A Migratory Songbird Is Predicted By Drought Severity And Group Size, Charles R. Brown, Mary Bomberger Brown Oct 2014

Breeding Time In A Migratory Songbird Is Predicted By Drought Severity And Group Size, Charles R. Brown, Mary Bomberger Brown

School of Natural Resources: Faculty Publications

Global climate change is altering the breeding phenology of many organisms, and one reported consequence of warmer average temperatures is earlier breeding times in migratory songbirds of north temperate latitudes. Less studied are the potential interactions between earlier breeding and social behavior in colonial species. We investigated how breeding time, as measured by colony initiation dates across the entire summer, in Cliff Swallows (Petrochelidon pyrrhonota) of southwestern Nebraska, USA, changed over a 30-year period and could be predicted by climatic variables, year, and colony size. Mean colony initiation date became earlier over the study, with variation best predicted …


A Comparison Of Techniques Measuring Stress In Birds, Deborah A. O'Dell, Michael A. Carlo, Abigail Kimmitt, Ellen Bikowski, Katherine R. Morris, Andrew Dolby Oct 2014

A Comparison Of Techniques Measuring Stress In Birds, Deborah A. O'Dell, Michael A. Carlo, Abigail Kimmitt, Ellen Bikowski, Katherine R. Morris, Andrew Dolby

Virginia Journal of Science

Free-living birds are subjected to both external and internal stresses which can affect their health, activity, and reproductive success. To study stress in free living birds, they must be captured in nets and handled by the researcher to take blood samples for commonly used measures of stress, an activity which itself can induce stress and confound results. This study compares the effects of handling time on three different measures of stress: levels of the stress hormone corticosterone (CORT), levels of Heat Shock Protein 60 (HSP 60) and the ratio of heterophils to lymphocytes (H/L ratio) in tufted titmouse (Baeolophus bicolor …


Nesting Behaviour Influences Species-Specific Gas Exchange Across Avian Eggshells, Steven J. Portugal, Golo Maurer, Gavin H. Thomas, Mark E. Hauber, Tomáš Grim, Phillip Cassey Sep 2014

Nesting Behaviour Influences Species-Specific Gas Exchange Across Avian Eggshells, Steven J. Portugal, Golo Maurer, Gavin H. Thomas, Mark E. Hauber, Tomáš Grim, Phillip Cassey

Publications and Research

Carefully controlled gas exchange across the eggshell is essential for the development of the avian embryo. Water vapour conductance (GH2O) across the shell, typically measured as mass loss during incubation, has been demonstrated to optimally ensure the healthy development of the embryo while avoiding desiccation. Accordingly, eggs exposed to sub-optimal gas exchange have reduced hatching success. We tested the association between eggshell GH2O and putative life-history correlates of adult birds, ecological nest parameters and physical characteristics of the egg itself to investigate how variation in GH2O has evolved to maintain optimal water loss across a diverse set of nest environments. …


Game Birds Of The World: A Catalog Of The Madson Collection, Paul A. Johnsgard, Eric Fowler, Michael Forsberg, Mary Bomberger Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman Sep 2014

Game Birds Of The World: A Catalog Of The Madson Collection, Paul A. Johnsgard, Eric Fowler, Michael Forsberg, Mary Bomberger Brown, Dee Ebbeka, Jacki Loomis, Patricia W. Freeman

Paul Johnsgard Collection

This remarkable collection of ornithological specimens is a gift of Everett C. Madson, M.D., a graduate of the University of Nebraska-Lincoln, to the University of Nebraska State Museum in honor of Paul Johnsgard, Ph.D., Professor Emeritus of the School of Biological Sciences.

Contents:

Foreword

Introduction

Biography - Paul A. Johnsgard

Biography - Everett C. Madson

Species Profiles and Photographs

Tinamous (Order Tinamiformes, Family Tinamidae)

Spotted Tinamou (Nothura maculosa)

Waterfowl (Order Anseriformes)

Ducks, Geese and Swans (Family Anatidae)

Whistling Ducks (Tribe Dendrocygnini)

White-faced Whistling Duck (Dendrocygna vidu

Geese and Swans (Tribe Anserini)

Black Swan (Cygnus atratus).

Tundra [Whistling] Swan (Cygnus columbianus) …


Contact Zone Of The Eastern And Western Marsh Wrens In Nebraska Revisited, Mark B. Robbins Sep 2014

Contact Zone Of The Eastern And Western Marsh Wrens In Nebraska Revisited, Mark B. Robbins

Nebraska Bird Review

Across the northern and coastal United States and southern central Canada the Marsh Wren (Cistothorus palustris) is a widespread breeder in cattail-dominated marshes. Although it has long been considered to be polytypic based on subtle plumage characters (Parkes 1959; Phillips 1986), it was not until Kroodsma (1989, 2005) demonstrated that there was a dramatic break in the primary (song) vocalization in the northern Great Plains that anyone suggested more than one species was involved. In 1986, as part of the delineation of the breeding distribution of both vocal types, Kroodsma (1988; see map therein) audio recorded wrens at …


Nebraska Bird Review (September 2014) 82(3), Whole Issue Sep 2014

Nebraska Bird Review (September 2014) 82(3), Whole Issue

Nebraska Bird Review

Summer Field Report, June–July 2014 ... 98

Stomach Content Analysis of Recent Snowy Owl (Bubo scandiacus) Specimens from Nebraska … 122

Contact Zone of the Eastern and Western Marsh Wrens in Nebraska Revisited ... 128

2013 (25th) Report of the NOU Records Committee ... 131

Subscription and Organization Information ... 147


Summer Field Report, June–July 2014, W. Ross Silcock Sep 2014

Summer Field Report, June–July 2014, W. Ross Silcock

Nebraska Bird Review

This summer was marked by the "unremarkability," if there is such a thing, of the status of almost all species, especially passerines. A stark exception, however, was the pair of summering hummingbirds in a yard a few miles southeast of Chadron: Juanita Whittecar sent a collection of very good photos of these birds, detailed enough to determine that the pair of supposed Ruby-throated Hummingbirds actually consisted of a female Ruby-throated and a hybrid Ruby-throated x Broad-tailed male. Another odd phenomenon was the number of shorebird species with late Jun records, usually the brief window within which these species are absent …


Subscription And Organization Information [September 2014] Sep 2014

Subscription And Organization Information [September 2014]

Nebraska Bird Review

The Nebraska Bird Review is published quarterly by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears of dues. Annual subscription rates (on a calendar-year basis only): $25 in the United States and $35 in all other countries, payable in advance. Single copies are $7 each, postpaid, in the United States and $9 elsewhere. Send orders for back issues to Anita Breckbill, NOU Librarian, c/o Music Library, WMB 30, University of Nebraska, Lincoln, NE 68588-0101.

Memberships in the NOU (on a calendar-year basis only): Active Household (one or more people) $25; Sustaining …


2013 (25th) Report Of The Nou Records Committee, Mark A. Brogie Sep 2014

2013 (25th) Report Of The Nou Records Committee, Mark A. Brogie

Nebraska Bird Review

The "Official List of the Birds of Nebraska" was first published in 1988 (NOU 1988) and has been updated three times (NOURC 1997, 2004, 2009). The "Official List" has been appended twenty-three times: (Mollhoff 1989; Grenon 1990, 1991; Gubanyi 1996a, 1996b, 1996c; Brogie 1997, 1998, 1999, 2003, 2004, 2005, 2006, 2007, 2008, 2009a, 2009b, 2011, 2012, 2013; Jorgensen 2001, 2002, 2003).

The American Ornithologists' Union Checklist of North American Birds, Seventh Edition (1998) and its following supplements: (AOU: 2000, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013) contain many taxonomic changes affecting North American birds.

The …


Stomach Content Analysis Of Recent Snowy Owl (Bubo Scandiacus) Specimens From Nebraska, Rachel L. Valenziano, Thomas E. Labedz Sep 2014

Stomach Content Analysis Of Recent Snowy Owl (Bubo Scandiacus) Specimens From Nebraska, Rachel L. Valenziano, Thomas E. Labedz

Nebraska Bird Review

The Snowy Owl (Bubo scandiacus) is a circumpolar bird of prey that breeds in extreme northern latitudes, including Canadian and Alaskan tundra. During winter months, some immature and non-breeding birds disperse south. North American birds may travel to southern Canada and northern parts of the United States, and in some extreme cases as far south as Oklahoma and Texas (Parmelee 1992). Although not fully understood, these irruptive events may be caused by the abundance of prey in northern Canada and Alaska (Parmelee 1992).

Prey typical of Snowy Owls are small mammals (e.g., lemmings and hares) of their home range and …


Música De Las Grullas: Una Historia Natural De Las Grullas De América, Paul A, Johnsgard, Enrique H. Weir, Karine Gil-Weir Sep 2014

Música De Las Grullas: Una Historia Natural De Las Grullas De América, Paul A, Johnsgard, Enrique H. Weir, Karine Gil-Weir

Zea E-Books Collection

En un sábado mágico de marzo, maneje con un estudiante de postgrado hasta el valle central del Platte, al oeste de Grand Island, tanto para ver la migración primaveral de aves acuáticas como la de las grullas grises. Tal vez fue una suerte que yo no estuviera preparado emocionalmente para ver como innumerables grullas salpicaban el cielo de horizonte a horizonte, o girando grácilmente sus cabezas como si estuvieran atrapados en algún torbellino de ultra cámara lenta, su vibrato produce una cadencia descendente como la música de un coro aviar angelical. Desde los días de mi infancia, cuando, por primera …


Kentucky Warbler (Vol. 90, No. 3), Kentucky Library Research Collections Aug 2014

Kentucky Warbler (Vol. 90, No. 3), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.