Poultry or Avian Science Commons^™

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 …