Poultry or Avian Science Commons^™

Successional Changes And Habitat Selection In Hayfield Bird Communities, Eric K. Bollinger

Faculty Research & Creative Activity

I examined the effects of successional changes in vegetation on the breeding dispersion of grassland birds in hayfields in New York. I sampled vegetation and counted birds in 90 hayfields of various ages (i.e. number of years since planting) and sizes that were originally planted to a legume-dominated seed mixture. I also resampled a subset of these fields two years later. Over time, these hayfields changed from tall, dense, homogeneous stands of legume-dominated vegetation to short, sparse, patchy stands of grass-dominated vegetation. Fields of all ages were dominated by introduced plant species. Red-winged Blackbirds (Agelaius phoeniceus), the most common bird …

Successional Changes And Habitat Selection In Hayfield Bird Communities, Eric Bollinger

Faculty Research & Creative Activity

I examined the effects of successional changes in vegetation on the breeding dispersion of grassland birds in hayfields in New York. I sampled vegetation and counted birds in 90 hayfields of various ages (i.e. number of years since planting) and sizes that were originally planted to a legume-dominated seed mixture. I also resampled a subset of these fields two years later. Over time, these hayfields changed from tall, dense, homogeneous stands of legume-dominated vegetation to short, sparse, patchy stands of grass-dominated vegetation. Fields of all ages were dominated by introduced plant species. Red-winged Blackbirds (Agelaius phoeniceus), the most common bird …

Bald Eagle Count By Big Bend Audubon Chapter--Kearney, Ne, George W. Brown

Nebraska Bird Review

The counts were made on January 8, 1994 in two locations: the Kearney to Lexington area; and the Harlan Reservoir and Republican River areas. The temperature ranged from 12° - 46° F; wind, southwest at 3 - 15 mph; sky clear; water mostly open. Participants on the Kearney to Lexington area were George and Marian Brown, Evelyn Johnson, Wes Kellogg, Eileen Paine, Bob Talbitzer, Trenton Talbitzer, Dana Thuente, Margaret Triplett, Mark Urwiller, James Urwiller, and Garnsey Weed. participants on the Harlan Reservoir Republican River count were Carla Alexander, Bonnie Bernholtz, Robin Harding, Phoebe Keenen, and Lanny Randolph. Don and Vernell …

Nou Bird Count, May 19-21, 1995, And Sarpy County North American Migration Count, May 13, 1995

Nebraska Bird Review

The following table includes the 129 species seen in five counties during the spring meeting of the Nebraska ornithologists' Union at Camp Calvin Crest near Fremont, NE. Sarpy County also includes species recorded for the North American Migration Count on May 13, 1995. These are shown as numbers versus check marks for the NOU count.

Data for the Sarpy County North American Migration Count:

The count on 13 May, 1995 lasted from 6:00 AM to 7:30 PM, the temperature ranged from 53° to 77° F, the wind ranged from south at 8 mph to west at 29 mph. There were …

Bald Eagle Counts From Two Viewing Facilities, 1994-95 Season, Mark M. Peyton, Rodger Knaggs

Nebraska Bird Review

The Central Nebraska Public Power and Irrigation District (Central) opened the Johnson No. 2 (J-2) hydroelectric plant, located southeast of Lexington, to the public in 1998 for viewing the Bald Eagles that congregate along the spillway below the plant, and in 1990 provided a second viewing facility at Kingsley Dam below Lake McConaughy near Ogallala. Since the openings, over 30,000 visitors have registered at the two facilities.

Records of the number of Bald Eagles visible from the viewing facilities during the 1994-95 seasons are presented, as well as a brief review of numbers at the two sites since they were …

Spring Field Report, March-May 1995, W. Ross Silcock

Nebraska Bird Review

I want to thank the contributors (I think!) for their hard work and supplying me with some 2750 records from which to distill this rather lengthy report. Everything submitted is potentially valuable; my only comment is that brief details on unusual observations such as early or late dates, etc. as well as fuller descriptions of rarities should be provided. It is noteworthy that we have almost as many reporters from the panhandle as from eastern Nebraska.

The highlights of this season were varied. In general, there were few record early dates; indeed, most arrival dates were a little later than …

Masthead From Nebraska Bird Review (June 1995) 63(2)

Nebraska Bird Review

The Nebraska Bird Review is published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears for dues. Annual subscription rates (on a calendar-year basis only): $12.50 in the United States, $15.00 in Canada and Mexico, and $17.50 for all other countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary H. Pritchard, NOU Librarian, university of Nebraska State Museum, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis …

Laughing Gulls In Western Nebraska, Stephen J. Dinsmore, W. Ross Silcock

Nebraska Bird Review

In this article, we describe two recent sightings of Laughing Gulls in western Nebraska in 1992 and 1994. The only previous acceptable record for Nebraska is a bird collected on 2 April, 1915 at Inland, Clay Co. (Bray et al. 1986). The birds described here are the second and third accepted records of this species in Nebraska.

On 30 June, 1992, Stephen J. Dinsmore and James J. Dinsmore observed a second-summer Laughing Gull at gate 9 on Lake McConaughy, Keith Co. The bird was resting on a sandy spit with about 100 other gulls, mostly Ring-billed. They observed the bird …

Lincoln County, Nebraska, May 13, 1995, Bird Count

Nebraska Bird Review

Nine members of the Tout Bird Club counted 99 species between 7:00 AM and 3:00 PM. The day was sunny with gusts of west wind up to 50 miles per hour, and the temperature ranged from 40-50° F. The participants were Esther and Harold cunningham, Marie Eavens, Greg Hoover, Pat McEvoy, Nancy and Virgil Norton, and Wilma and Howard Wyman. The list of species reported by Wilma is as follows:

pied-billed Grebe, Eared Grebe, American white Pelican, Double-crested Cormorant, Great Blue Heron, Cattle Egret, Black-crowned Night-Heron, Canada Goose, Wood Duck, Mallard, Blue-winged Teal, Cinnamon Teal, Northern Shoveler, Lesser Scaup, Bufflehead, …

"Notes On Bird Sightings In Nebraska," From Nebraska Bird Review (June 1995) 63(2)

Nebraska Bird Review

Black-shouldered Kite. On 6 May, 1995, I saw an adult in full plumage hunting over a field of tall, dead grass just inside the Polk County line from York County. I first noticed this large, white bird hovering while hunting, then it would move a short distance and hover again. Since I see these birds every winter in south Texas, I am very familiar with them, and this is the first one I've seen in Nebraska. Its field marks were very plain, especially the black shoulder patches, long, pointed wings, and long tail. After watching it for some time, …

Whole Issue Nebraska Bird Review (June 1995) 63(2)

Nebraska Bird Review

Table of Contents

1994 Bald Eagle Count, Big Bend Audubon Chapter, Kearney ...................30

Bald Eagle Counts from Two Viewing Facilities, 1994-1995 ...................31

Spring Field Report, March-May, 1995 ...................34

Observers for Spring Field Report ...................60

Notes on Bird Sightings in Nebraska ...................60

Lincoln County, Nebraska May 13, 1995 Bird Count ...................61

NOU Bird Count, May 19-21, 1995, and Sarpy County North American Migration Count, May 13, 1995 ...................62

Laughing Gulls in Western Nebraska ...................66

The Effect Of Acute Cold Exposure On Body Weight In Broiler Chicks, Stephen T. Pittman

Honors Capstones

No abstract provided.

Christmas Bird Count For 1994

Nebraska Bird Review

The official count period for the 95th Audubon National society's Christmas Bird Count was December 17, 1994 through January 2, 1995. Two of the Nebraska locations conducted counts outside the official period, Grand Island on the 16 Dec. and North Platte on 7 Jan.

The numerical data are presented in Table 1 (pages 4-9) in a west (left) to east (right) and north (top) to south (bottom) order for 12 locations entirely in Nebraska, and 2 locations (DeSoto NWR and Tristate) that are not entirely in Nebraska. Unusual species underlined in the reports are marked * before the number in …

1994 And 1995 Surveys Of Bald And Golden Eagles In Nebraska, John Dinan

Nebraska Bird Review

Conditions for 1994 survey: Temperatures 20 to 50° F Jan.1-5, and from -5 to 45° F Jan. 6-10; light to moderate snow cover in the panhandle, 2-4" of snow in the northeast, and none in the rest of Nebraska. Niobrara River had ice cover up to 80-95% in some reaches; Missouri River was flowing with 50-75% slush; other rivers surveyed by air were mostly ice-free. Larger reservoirs, i. e. Harlan and Lake McConaughy, had some ice cover in protected bays and at the upper ends, but the main areas were open. The rest of the lakes and smaller reservoirs …

The Nebraska Ornithologists' Union, Inc., Treasurer's Annual Report, 12/31/94, Elizabeth Grenon

Nebraska Bird Review

The Nebraska Ornithologists' Union, Inc., Treasurer's Annual Report, 12/31/94

Balance 1/1/94 on cash basis per bank account: Cash $1,428.18 Investments $13,636.47 Total $15,064. 65

Total Receipts: Cash $9,107.20 Investments $13,734.48 Total $22,841.68

Total Disbursements: Cash $8,942.22 Investments 13,870.95 Total $22,813.17

Balance 12/31/94: Cash $1,593.16 Investments $13,500.00 Total $15,093.16

List Of Birds For Which The Records Committee Seeks Documentation, Joseph A. Gubanyi

Nebraska Bird Review

The NOU Records Committee at its February 25, 1995 meeting revised the list of species for which the committee seeks documentation. This list was last published in 1988 (NBR 56:86-96). The committee seeks documentation on all species with less than regular occurrence in Nebraska, as well as any species occurring out-of-range or out-of-season. Changes in this list since 1988 include the addition of new species documented for the state, and the deletion of species upgraded to regular status. Below are, listed the species of less than regular occurrence based on the official list of state birds (a revised list …

Masthead From Nebraska Bird Review (March 1995)

Nebraska Bird Review

The Nebraska Bird Review is published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in arrears for dues. Annual subscription rates (on a calendar-year basis only): $12.50 in the united States, $15.00 in Canada and Mexico, and $17.50 for all other countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary H. Pritchard, NOU Librarian, University of Nebraska State Museum, Lincoln, NE 68588-0514.

Memberships in NOU (on a calendar year basis …

Winter Field Report, December-February 1994-95, W. Ross Silcock

Nebraska Bird Review

This was an interesting winter season, with some record late and early dates, rarities, and early arrivals of large numbers of migrants. This information was provided by a dedicated group of observers, who have been patient in understanding the kind of information to report.

First Feb records for Common Loon, first Jan record for Horned Grebe, first wintering record for Western Grebe, record late date for Eared Grebe, first Dec record of Baird's Sandpiper, first Feb record of winter Wren away from the Missouri valley, and 4th Feb record for Yellow-rumped Warbler, were all notable.

Large numbers of geese, ducks, …

Whole Issue Nebraska Bird Review (March 1995) 63(1)

Nebraska Bird Review

Table of Contents

NOU Treasurer's Annual Report ...................2

Christmas Bird Count for 1994 ...................3

List of species for Which the Records Committee Seeks Documentation ...................12

Winter Field Report, December-February, 1994-1995 ...................14

1994 & 1995 Surveys of Bald and Golden Eagles in Nebraska ...................23

Note on Bird Sighting in Nebraska ...................27

"Note On Bird Sighting In Nebraska," From Nebraska Bird Review (March 1995), Sandy Lemmon

Nebraska Bird Review

Black-throated Blue Warbler. I saw this bird in our yard (James Ranch, Fort Robinson State Park, Sioux co.) between October 10 and 13, 1993. It had a black face and throat, blue-gray head, back, and tail, with white patches on its wings. I used the Golden Field Guide to Birds of North America, and the Audubon Society Field Guide to North American Birds to identify it. It did not seem to be disturbed by my presence (5 to 10 feet away), but moved about very rapidly. It was with a bird tentatively identified as an immature Yellow-rumped Warbler, and was …

Regional Variation In Temperature Humidity Index For Poultry Housing, Richard S. Gates, Hanzhong Zhang, Donald G. Colliver, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

A building thermal model was used to compute hourly values of temperature humidity index (THI) for a broiler house with and without an evaporative misting system. Hourly summer time weather data for 238 U.S.A. locations covering 30 years were used to develop extreme occurrences of THI. Results were incorporated into a Geographical Information System (GIS) database to create isolines of THI and percentage of hours exceeding a heat stress threshold. Regional variations in misting as a suitable cooling technique are presented in terms of hours reduction in annual heat stress. The technique may be used for assisting in management decisions …

Effect Of Feathers As Nest Insulation On Incubation Behavior And Reproductive Performance Of Tree Swallows (Tachycineta Bicolor), Michael P. Lombardo, Ruth M. Bosman, Christine A. Faro, Stephen G. Houtteman, Timothy S. Kluisza

Peer Reviewed Publications

Many species of birds line their nests with feathers, presumably because of the insulative qualities of feathers and because feathers may act as a barrier between nest parasites and nestlings. In 1993, we experimentally examined the role of feathers as nest insulation on the incubation behavior, nestling growth, and reproductive performance of Tree Swallows (Tachycineta bicolor) nesting in boxes in western Michigan. There were no significant differences between the incubation rhythms of females with experimental nests (i.e. no feathers) and females with control nests (i.e. with feathers). Nestlings that were reared in control nests had significantly longer right …

Within-Pair Copulations: Are Female Tree Swallows Feathering Their Own Nests?, Michael P. Lombardo

Peer Reviewed Publications

A variety of hypotheses has been proposed to explain why socially monogamous birds copulate repeatedly with their mates when only a single copulation is necessary to fertilize an entire clutch (Birkhead and Møller 1992, Petrie 1992, Hunter et al. 1993). Petrie (1992) hypothesized that a female should copulate frequently with her mate so as to reduce her mate’s involvement in extrapair copulations. By reducing her mate’s involvement in extrapair copulations, a female may: (1) avoid the transmission of parasites and sexually transmitted diseases (Hamilton 1990); (2) may avoid sperm depletion by her mate; and (3) may monopolize her mate’s paternal …

Availability And Use Of Food Resources By Two Species Of Automolus (Aves, Furnariidae), Grace Patricia Servat-Valenzuela

Theses

Foraging specialization is one mechanism that has been hypothesized to promote species coexistence and, thus, higher bird species diversity in tropical forests. Dead-leaves suspended in vegetation above the forest floor constitute a focal substrate that may promote specialization (Rosenberg 1990a, b). In a study locality in Amazonia, Remsen and Parker (1984) reported 16 species of birds closely associated with this system. Therefore, it represents a microcosm of high diversity in tropical forests. As such, one natural question is how this substrate can support so many coexisting species, and at what level does specialization occur? In the present study, I address …

Whooping Crane Sightings In Nebraska, August 1994-January 1995, Steven Anschutz

Nebraska Bird Review

The first arrival at Aransas National Wildlife Refuge in southern Texas was on October 5, 1994, and the last arrivals (a family group) were on January 12, 1995, the latest date that an adult pair had ever arrived at Aransas. A total of 132 (125 adult/subadult and 7 young) Whooping Cranes are wintering at Aransas, including 3 birds that spent the summer at Aransas. A solitary chick sighted with Sandhill Cranes in Oklahoma on January 2, 1995 is the 133rd crane in the flock. Since, under optimum conditions, 148 cranes were expected to reach Aransas during the fall migration, the …

"Index To Volume 62," From Nebraska Bird Review (December 1994), R. G. Cortelyou

Nebraska Bird Review

Index (12 pages)

Albino? 151

Alt, Jim 54, 59(2), 62, 68, 72, 80, 82(2), 83, 88, 107, 113, 115, 143, 144, 149. 151

Amiotte, Sue 50

Anderson, Neal 96

Anschultz, Steven Whooping Crane
Sightings During Spring
Migration, 1994 94

Whooping Crane Sightings, August 1004 - January 1995 149

Avocet, American 20, 21, 73. 98, 107, 133 .

Babcock, Colleen 89

Barn-Owl, Common 24, 25, 77, 110

Barth, Roland 109, 115

Bedows, Elliot 88

Birkman, Marjorie 58, 59, 60, 60, 68, 73, 80, 87, 88

Bittern, American 66, 67, 104, 128 Least 5. 90. 104

Blackbird, Brewer's 46 , 47, 62 …

Excerpts From The Minutes Of The Nebraska Ornithologists' Union Executive Committee Meeting, September 10, 1994, Robin Harding

Nebraska Bird Review

The 1995 annual spring meeting and field trips will be held at Camp Calvin Crest near Fremont, NE May 19-21. Most of the Executive Committee members agreed that presentation of one scientific paper on Saturday afternoon would be a desirable addition. The 1995 annual fall meeting will be at Halsey National Forest 4-H camp, tentatively on October 6-8. The Executive Committee decided against having a winter meeting.

Alice Kenitz discussed the printing of the Nebraska Ornithologists' Union (NOU) Field Card of Nebraska Birds. She reported that there may be some money available from the Nebraska Game and Parks Commission to …

Masthead From Nebraska Bird Review (December 1994)

Nebraska Bird Review

The Nebraska Bird Review is published quarterly in March, June, September, and December by the Nebraska Ornithologists' Union, Inc., as its official journal, and is sent to members not in' arrears for dues. Annual subscription rates (on a calendar-year basis only): $12.50 in the United States, $15.00 in Canada and Mexico, and $17.50 for all other countries, payable in advance. Single copies are $4.00 each, postpaid, in the United States, and $5.00 elsewhere. Send orders for back issues to Mary H. Pritchard, NOU Librarian, University of Nebraska State Museum, Lincoln, NI 68588-0514.

"Notes On Bird Sightings In Nebraska," From Nebraska Bird Review (December 1994)

Nebraska Bird Review

Northern Waterthrush. At 9:35 a.m. on December 14, and again at 10:15 a.m. on December 21, 1994, I observed what I believe was the same bird on a Burlington Northern railroad embankment north of Gifford Road in Fontenelle Forest, Bellevue, NE. On December 14, I saw it for 7 seconds. It vocalized with a sharp "chink" as it hopped up on a fallen log, then vocalized again 6-7 seconds later as it jumped down into thick underbrush. It was silent on December 21, but I observed it for at least ten minutes as it walked at the foot of a …

Fall Field Report, August-November 1994, W. Ross Silcock, Richard C. Rosche

Nebraska Bird Review

The fall season is a long one in terms of bird movements. The SUMMER FIELD REPORT detailed the post-breeding wanderings of herons and the beginning of shorebird migration. This report covers the end of these and the southward movements of insectivorous passerines, mainly in August and September, while seedeaters such as sparrows follow, mainly in September and October. Waterfowl generally bring up the rear, moving south just ahead of the freeze-up.

The fall season is probably the most exciting time for rare bird enthusiasts, as young birds of many species wander, often aimlessly, at this time of year before they …