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Articles 2701 - 2730 of 4557

Full-Text Articles in Ornithology

Wpa News 33 (1991), World Pheasant Association Aug 1991

Wpa News 33 (1991), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (August 1991), number 33

Published by the World Pheasant Association


Mate Choice In Lekking Sage Grouse Revisited: The Roles Of Vocal Display, Female Site Fidelity, And Copying, Robert M. Gibson, Jack W. Bradbury, Sandra L. Vehrencamp Jul 1991

Mate Choice In Lekking Sage Grouse Revisited: The Roles Of Vocal Display, Female Site Fidelity, And Copying, Robert M. Gibson, Jack W. Bradbury, Sandra L. Vehrencamp

School of Biological Sciences: Faculty Publications

In lekking sage grouse (Centrocercus urophasianus), females exhibit relatively unanimous mate choice for particular males, but a satisfactory explanation for this unanimity has been elusive. We present analyses of mating distributions from two leks over 4 years that provide evidence for female choice based on differences in vocal display performance of males, the locations at which hens mated in the previous year, and the choices of other females (copying). The unanimity of female choice varied markedly among leks and years in correlation with changes in the mean numbers of hens that mated at the same time and hence …


Black-Bellied Plover In Buffalo County Jun 1991

Black-Bellied Plover In Buffalo County

Nebraska Bird Review

On May 9, 1991, while doing a weekly least tern and piping plover survey, we observed two Black-bellied Plovers (Pluvialis equatarola). The birds were observed foraging along the shoreline of a sandpit near Elm Creek, Nebraska.


Kentucky Warbler (Vol. 67, No. 2), Kentucky Library Research Collections May 1991

Kentucky Warbler (Vol. 67, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Wpa News 32 (1991), World Pheasant Association May 1991

Wpa News 32 (1991), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (May 1991), number 32

Published by the World Pheasant Association


Nebraska Fauna: American White Pelican, Paul A. Johnsgard May 1991

Nebraska Fauna: American White Pelican, Paul A. Johnsgard

Papers in Ornithology

Few birds are more familiar to the average person than are white pelicans, but few Nebraskans also realize that thousands of these birds migrate through the state every year, and hundreds stop over to spend the summer on some of our larger lakes and reservoirs. No pelicans breed in Nebraska, but the nearest breeding area is only a short distance north of us, at LaCreek National Wildlife Refuge, near Martell, South Dakota. Since it requires three--or more probably four--years for white pelicans to become sexually mature, many of the immature birds simply stop off in Nebraska rather than completing their …


Kentucky Warbler (Vol. 67, No. 1), Kentucky Library Research Collections Feb 1991

Kentucky Warbler (Vol. 67, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Total Body Water And Body Composition In Phalaropes And Other Birds, Hugh I. Ellis, Joseph R. Jehl Jr Jan 1991

Total Body Water And Body Composition In Phalaropes And Other Birds, Hugh I. Ellis, Joseph R. Jehl Jr

Biology: Faculty Scholarship

Contrary to some reviews, total body water (TBW) may fall below the expected value of about 65% in birds if measured as a percentage of total body mass. However, water constitutes a relatively stable proportion (659%-70%) of body composition when measured as a percentage of lean body mass (LBM). We demonstrate this by using data from two migratory phalaropes (Phalaropus tricolor and Phalaropus lobatus), which exhibit inverse relationships between TBW and body mass and between TBW and fat content. As the phalaropes fatten before migration, lipids increase but not at the expense of water, which also increases with gains in …


Editor's Note, Ray Korpi Jan 1991

Editor's Note, Ray Korpi

Nebraska Bird Review

I am pleased to announce that Rosalind Morris of Lincoln will serve as the editor of The Nebraska Bird Review for 1992. Dr. Morris brings many years of birding experience to the Review and will do a fine job. Dr. Morris officially takes over the editorship on January 1, 1992.

Until that time, I will continue to serve as editor of the NBR. I will consider submissions for the December issue up until November 27, 1991 (the day before Thanksgiving). After that date, those wishing to contribute articles and notes to the NBR should mail them to Rosalind Morris, 3018 …


Eagles Jan 1991

Eagles

Nebraska Bird Review

For the past three years, the Central Nebraska Public Power District has operated an Eagle Viewing Center at our J-2 Hydropower plant south of Lexington, and this past year below Kingsley Dam on Lake Ogallala.

The following are some results recorded at the sites:

At J-2 Hydroplant:

January 1990-0bservations were recorded on 23 days. 263 birds were sighted for a daily average of 11.4 per day. The highest count was 20 birds on January 2.

February 1990-0bservations were recorded on 15 days. 28 birds were sighted for a daily average of 1.9 per day. The highest count was 16 birds …


A Nesting Report Of A Wilson's Phalarope In Lancaster County, Larry Einemann Jan 1991

A Nesting Report Of A Wilson's Phalarope In Lancaster County, Larry Einemann

Nebraska Bird Review

Only once before has a nesting record of Wilson's Phalarope (Phalaropus tricolor) been reported in Lancaster County. This report is in The Nebraska Bird Review, December 1985. Employees of the Nebraska Game and Parks Commission discovered two fledglings at a site in the northeast part of the county at 98th and Ashland Road. The two fledglings were found in a wet meadow. They were accompanied by two male and one female phalaropes. The sighting was made on 13 June 1985.

On 7 June 1991 I visited Arbor Lake, a recently purchased salt marsh about one mile north …


Some Birds Of The Pony Lake Area Of The Eastern Sandhills, Nebraska, James E. Ducey, Jerry Schoenenberger Jan 1991

Some Birds Of The Pony Lake Area Of The Eastern Sandhills, Nebraska, James E. Ducey, Jerry Schoenenberger

Nebraska Bird Review

A partial survey was made of the bird life in the vicinity of Pony Lake, located about 15 miles south of Newport, in portions of sections 17-20, T28N, RI7W, Rock County.

Pony Lake was reportedly named according to a legend from "early days" when a native American was thrown and killed on its banks by a wild pony (Perkey, 1982). Originally Pony Lake was reported to be 20 feet deep (lake history based on conversations and observations of Jerry Schoenenberger). In the late 1800s, possibly 1900-1910, a town site was platted on the southwest corner of the lake. Construction included …


Spring 1991 Whooping Crane Report Jan 1991

Spring 1991 Whooping Crane Report

Nebraska Bird Review

The following is a synopsis of the report from the U.s. Fish and Wildlife Service with regard to Whooping Crane sightings from Spring 1991. The report consists of confirmed, probable, and unconfirmed sightings during the season. These terms are defined in NBR 56:79.

The USFWS states that 135 Whooping Cranes began the spring migration, compared to 142 in 1990. This drop of seven birds represents the first population decrease since 1981. Most confirmed sightings en route to Wood Buffalo National Park, Canada, were made between April 14 and April 23. Overcast skies and low visibility delayed the usual early April …


Announcements And Corrections In Nebraska Bird Review Jan 1991

Announcements And Corrections In Nebraska Bird Review

Nebraska Bird Review

GRANTS FOR NONGAME WILDLIFE RESEARCH IN MINNESOTA

Corrections


Sighting Information And Analysis Jan 1991

Sighting Information And Analysis

Nebraska Bird Review

Rather than do a county-by-county analysis as has been done in the past, since this count starts a new year, I thought I would comment on the sightings presented using both information provided by the observers and appropriate reference materials. This current report only documents those species which are listed by the Records Committee as needing documentation, or those which merit comment due to significant out-of-range or out-of-season status. A more thorough study, including nesting information provided by the reporters, will appear in the next NBR.


Pileated Woodpecker Responds To Owl Tape [Notes], Rick Wright Jan 1991

Pileated Woodpecker Responds To Owl Tape [Notes], Rick Wright

Nebraska Bird Review

Suspecting the Pileated Woodpecker (Drycopos pileatus) first reported in fall 1990 might still be present, I spent much of a late March visit to Nebraska in Fontenelle Forest, Sarpy County, looking and listening for the bird without success. Late on the morning of March 26, 1991, Tanya Bray, Babs Padelford, and I wele at the mouth of Handsome Hollow in Fontenelle Forest, the site of the most recent observations. Seeing and hearing nothing we played the recorded song of Eastern Screech-Owl (Otus asio), hoping to attract passerines. Within seconds, a female Pileated Woodpecker flew silently from …


Spring 1991 Occurrence Report Jan 1991

Spring 1991 Occurrence Report

Nebraska Bird Review

For the first six months of 1991, 301 species were reported from 34 counties. This compares with 290 species from 13 occurrence report and 17 "spot check" locations covering 30 counties in 1990; 289 from 20 report locations in 36 counties in 1989; and 306 from 28 report locations involving 34 counties. The tables which follow represent 22 of these counties in 21 columns (Douglas and Sarpy listed together as has become the custom), and additional species lists from 11 counties are also provided.


Cuming County Banding Records, Mabel Ott Jan 1991

Cuming County Banding Records, Mabel Ott

Nebraska Bird Review

For the past 14 out of 16 years I have banded at a farm northeast of Beemer, Cuming County, for 2 to 4 days in late May. Last year (1990), Memorial Day weekend, 222 birds of 43 species were banded.


Book Reviews, R. G. Cortelyou Jan 1991

Book Reviews, R. G. Cortelyou

Nebraska Bird Review

Frank Graham, Jr., with Carl W. Buchmeister. The Audubon Ark: A History of the National Audubon Society. 336 pp., bibliography, index. New York: Alfred A. Knopf, 1990. $29.95.

Connie Toops. The Enchanting Owl. Stillwater, MN: Voyageur Press. 128 pp., bibliography, index, 100 color photographs. $27.95 hardcover, $17.95 softcover.


Grouse News 1-10 (1991-1995), World Pheasant Association International, Diana Lovel Jan 1991

Grouse News 1-10 (1991-1995), World Pheasant Association International, Diana Lovel

Galliformes Specialist Group and Affiliated Societies: Newsletters

Issue 1 (March 1991)

Editorial, Diana Lovel

Tetraonid study register and abstracting function

Decline of black grouse, Egbert Strauss

Work at Grimso, Jon Swenson

Grouse: Captive breeding and reintroductions, Lain Valentine

How effective is the release of captive bred capercaillie? David Baines

Size of display grounds of capercaillie, E. Viht

New capercaillie research in Scotland, David Baines

Radiotracking of reintroduced black grouse abstract, Stefan Hövel, Sepp Bauer, and Egbert Strauss

Dogs can't find my ptarmigan, David Hancock

Red grouse: The north of England 1990, David Newborn

A second workshop on black grouse, David Baines

Obituary, in memory of Oleg Ismailovich …


The Cracid Newsletter 1(1)-5 (1991-1997), Iucn, Birdlife International, Wpa Cracid Specialist Group Jan 1991

The Cracid Newsletter 1(1)-5 (1991-1997), Iucn, Birdlife International, Wpa Cracid Specialist Group

Galliformes Specialist Group and Affiliated Societies: Newsletters

Volume1, Number 1 (Autumn 1991)

Editors: Angela Schmitz and Richard Buchholz

Status of the highly endangered white-winged guan Penelope albipennis, Victor Raul Diaz Montes

Formation of the WPA-ICBP-SSC-IUCN Cracidae Specialist Group

Cracidae Specialist Group Policy Statement

CSG Action Plan, 1990-1995

Cracid news from around the world: Central America, South America, Europe, and USA

Volumen 2, Numero 2 (Junio 1993)

Editores: Angela Schmitz and Richard Buchholz

Primer intento de introducción de un crácido en peligro, Geer Scheres

El pavon Oreoplasis derbianus protegido y desprotegido, Fernando González García

Técnicas demográficas de posible uso en crácidos, David B. McDonald

Noticias desde el …


Wpa News 31 (1991), World Pheasant Association Jan 1991

Wpa News 31 (1991), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (January 1991), number 31

Published by the World Pheasant Association


Factors Influencing Distribution And Abundance Of The Loggerhead Shrike (Lanius Ludovicianus Migrans) In South-Central Illinois, Eric Lantz Smith Jan 1991

Factors Influencing Distribution And Abundance Of The Loggerhead Shrike (Lanius Ludovicianus Migrans) In South-Central Illinois, Eric Lantz Smith

Masters Theses

The loggerhead shrike (Lanius ludovicianus) is listed as a threatened species in Illinois as a result of population declines that have occurred since approximately 1900. Although Graber et al. (1973) reported that this species had been largely extirpated from the northern two-thirds of Illinois by 1965, there has been no research on shrike distribution or abundance in the state since that time. Consequently, a roadside survey was completed in 32 south-central Illinois counties to delineate the abundance of loggerhead shrikes in the study area and attempt to relate their abundance to land-use patterns among counties surveyed.

Two hundred and eleven …


Index To Volume 58 (December 1990) Dec 1990

Index To Volume 58 (December 1990)

Nebraska Bird Review

Index

A-Z

9 pages


Mountain Plover Sighted In Kimball County, Mary Clausen Dec 1990

Mountain Plover Sighted In Kimball County, Mary Clausen

Nebraska Bird Review

In late April of 1990 I went to Kimball Co. to search for Mountain Plovers. Over a period of a week I walked several sections where Mountain Plovers have been sighted in the past. No Plovers were found at that time.

After I returned to my office in Lincoln, Fritz Knopf (Avian Studies Biologist, U.S. Fish and Wildlife Service, Colorado) contacted me to discuss Mountain Plover nesting habitat and behavior. Fritz offered to make a quick drive around Kimball Co. to see how the habitat in Nebraska compared to that used by nesting Mountain Plovers in Colorado.

On 3 May …


Whole Issue Nebraska Bird Review (December 1990) Dec 1990

Whole Issue Nebraska Bird Review (December 1990)

Nebraska Bird Review

Table of Contents

Third Report of the N.O.U. Records Committee.................... 90

1990 Fall Field Days.................... 97

Mountain Plover Sighted in Kimball County ....................98

Laughing Gull in Cedar County, Nebraska ....................99

A Comparison of Historic and Modern Birdlife at an Eastern Sand Hills Lake In Nebraska ....................100

Significant (?) Modifications in Bird Sightings at Wolff Lake (fall 1979 to spring 1990) ....................104

Notes ....................106

Index to volume 58 ....................108


Kentucky Warbler (Vol. 66, No. 4), Kentucky Library Research Collections Nov 1990

Kentucky Warbler (Vol. 66, No. 4), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.


Wpa News 30 (1990), World Pheasant Association Nov 1990

Wpa News 30 (1990), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (November 1990), number 30

Published by the World Pheasant Association


Pheasants In Asia 1989, David A. Hill, Peter J. Garson, David Jenkins Oct 1990

Pheasants In Asia 1989, David A. Hill, Peter J. Garson, David Jenkins

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Section 1: Studies of Pheasants in China

Distribution and Status

An overview of research on pheasants in China, 1978-88, Cheng Tso-Hsin

Pheasant conservation in Asia:Ssome introductory remarks, Keith Howman and Lew Young

The distribution of pheasants and partridges in China, Tang Chan-Zhu

The ecological and geographical distribution of pheasants in Wolong Nature Reserve, Deng Wei Jie

The gamebirds of Boaxing, Sichuan, China, He Fen-Qi and Cui Xie-Zhen

Galliformes of Yunnan Province in China, Yang Lan

Pheasant and partridge species of the Nu River Autonomous Region, Northwestern Yunnan, China, He Fen-Qi, Gao Ying-Xing and Zheng Yang-Zhi

Pheasants on the Qinghai-Xizang Plateau, …


1990 (Sixty-Fifth) Spring Occurrence Report Sep 1990

1990 (Sixty-Fifth) Spring Occurrence Report

Nebraska Bird Review

1990 (SIXTY-FIFTH) SPRING OCCURRENCE REPORT

Two hundred and ninety species are listed on this report from 13 locations plus 17 counties reported in five "spot check" counties. The 1989 figures were 289 species from 13 locations, plus 7 "spot check" columns involving 36 counties; in 1988, 306 from 15 locations, plus 13 "spot check" columns involving 34 counties; in 1987, 288 from 13 locations and 6 "spot check" columns involving 9 counties; and 1986, 304 from 13 locations and 9 "spot check" columns involving 24 counties.

The "spot check" columns are for infrequent visits to an area and the la …