Poultry or Avian Science Commons^™

Tufted Duck At Lake Ogallala: First Record For Nebraska, Stephen J. Dinsmore

Nebraska Bird Review

On 2 December 1999, I was birding at the east end of Lake Ogallala in Keith County. I was scanning the large diving duck flock just above the Keystone diversion dam when I noticed a scaup-like duck with a thin crest. I quickly realized that the bird was a male Tufted Duck. I carefully studied the, bird from 9:32-10:28 a.m. The bird spent all of its time actively foraging with a large flock of Greater and Lesser Scaup. It was approximately the same size as a Lesser Scaup. The head shape was rounded like a scaup, not "peaked" like a …

A Century Of Breeding Birds In Nebraska, Jackie Canterbury, Paul A. Johnsgard

Nebraska Bird Review

With the imminent publication of the Nebraska Breeding Bird Atlas and the turning of a new millennium, it is perhaps an appropriate time to survey the state of breeding birds in Nebraska. Wayne Mollhoft's summary of the N.O.U.'s Nebraska Breeding Birds Atlasing Project (Mollhoff, 2000) provides important data bases for the latter part of the past century, and the historic overview by James Ducey (1988) offers a useful basis for judging the breeding avifauna of Nebraska from about the beginning of the century. The Biological Resources Division of the U. S. Geological Survey's (WSGSBRD) annual Breeding Bird Survey data currently …

Spring Field Report, March To May 2000, W. Ross Silcock

Nebraska Bird Review

This spring was a fairly normal, although I heard comments about warblers being rather tough to find. The reports did confirm that for many of the migrant northwoods species. There were a few rarities, none represented first state records, however. Foremost of these were White Ibis, Glossy Ibis, blue-morph Ross's Goos~, Common Crane, Band-tailed Pigeon, Hammond's Flycatcher, and Black-throated Gray Warbler. The following birds may join these, although each may have fatal flaws, at least in the eyes of the NOURC: Red Phalarope and Slaty-backed Gull. Other interesting sightings included a Mississippi Kite in Lincoln; Gray Partridges in Scotts Bluff …

Mist Netting At Oliver State Recreation Area, Stephen J. Dinsmore

Nebraska Bird Review

During the fall 2000 migration, I decided to do some mist netting at Oliver State Recreation Area in Kimball County. My main emphasis was to document the occurrence of several species of Empidonax in western Nebraska. limited netting there in fall 1999 was not very successful, but I was more optimistic this year. With that in mind, I obtained the necessary federal and state permits and netted on four dates (26 August, 31 August, 7 September, and 20 September), each chosen to be immediately after the passage of a cold front.

Reproductive Behavior Of The Emu, Reema A. Persad, Douglas James, Nicholas B. Anthony

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Members of a flock of male and female emus were observed in an ethological experiment designed to investigate trends in reproductive behavior exhibited during the North American mating season, which lasts from October to mid-March. Observations were made at dawn, noon, and dusk from December 1999 to mid-March 2000, and the only behaviors that were consistently expressed during these times were pecking, strutting, exclusive, and male and female sexual activities (defined in text). Though statistical significance was found between male strutting behavior and female sexual activity in the December observation period, no overall significance or significance at other observation periods …

Livability Of Leghorn Balut Embryos Stored Under Varying Temperatures And Storage Times, Joyce Jong, F. Dustan Clark

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Baluts are fertile chicken or duck eggs that have been incubated and removed from the incubator prior to hatching for consumption. Chicken eggs are incubated for 11 to 14 days and duck eggs are incubated for 16 to 20 days. Baluts have an extremely specialized consumer market, with the majority of its consumers of Filipino decent. Current U.S. Department of Agriculture regulations for the storage of baluts prior to sale is 7.2ºC, the same as for infertile commercial table eggs. Consumer preference is to purchase live baluts for consumption. Since exposure to 7.2ºC causes embryo mortality within 8 hours of …

Growth And Performance Of Broiler Chicks During The Starter And Grower Phases In Phase-Feeding, L. Niki Loupe, Jason L. Emmert

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

An experiment was conducted to evaluate the efficacy of a nutrition program referred to as “phase-feeding” (PF) over the first 6 weeks posthatching. Diets were formulated using amino acid recommendations from the National Research Council (NRC) (1994) or from linear regression equations generated from best estimates of lysine (Lys), sulfur amino acid (SAA), and threonine (Thr) requirements. Regression equations were used to predict weekly Lys, SAA, and Thr requirements for use in a PF regimen that involved lowering amino acid levels following each respective week of the experiment, resulting in six diets fed over the 6-week period. Over the entire …

Feasibility Of Inducing Overlap Immunologic Competence In Gallinaceous Birds With Ascardia Dissimilis And A. Galli, Julie Hamilton, Thomas A. Yazwinski

Discovery, The Student Journal of Dale Bumpers College of Agricultural, Food and Life Sciences

Chickens and turkeys are routinely infected with the roundworms Ascaridia galli and A. dissimilis, respectively. The current study was conducted to gather basic information on these worms and to determine whether heterologous infections (chicken worms in turkeys and turkey worms in chickens) would be successful. Chickens and turkeys were obtained at day of hatch, brooded to 7 days of age, and placed in pens (25/pen) according to infection as received at 7 days of age: homologous, heterologous and control (no infection). Bird weights, mortalities, and feed efficiencies were monitored for 3 weeks postinfection, at which time all birds were killed …

Book Review: Birds Of The Untamed West. The History Of Birdlife In Nebraska, 1750 To 1875 By James E. Ducey, W. Ross Silcock

Nebraska Bird Review

Those with an interest in the birds of the Great Plains will be familiar with Jim Ducey's Nebraska Birds: Breeding Status and Distribution, published in 1988. I was amazed then by Jim's diligence in searching a wide range of sources and compiling an exhaustive list of Nebraska breeding records organized by county. Jim's new book, Birds of the Untamed West, reflects the same dogged pursuit of obscure sources unavailable to most of us and compilation of the results. If you expect such a compilation to be dry and boring, you will be pleasantly surprised, especially if you are …

Nebraska Ornithologists' Union Fall Meeting Report, 1999

Nebraska Bird Review

The Nebraska Ornithologists' Union Fall meeting took place once again at the Nebraska National Forest at Halsey between October 8 and 10. The following table represents the count, 108 species in all, for the five areas listed. As usual, the counts for Thomas and Blaine counties exclude the National Forest land in both counties.

A Summer Survey Of The Birds At Two Eastern Nebraska Wetlands, Kristine T. Phipps

Nebraska Bird Review

This study compares the avian species diversity at two eastern Nebraska wetlands that differ in their relative isolation from an urban environment. Birds were surveyed by the point Count method twice weekly at each site during June of 1998. Diversity was measured using species richness and species evenness. The percentage of bird species observed that depend on wetlands for breeding was also compared.

Results suggest that both species richness and evenness, as determined by the Shannon-Wiener index, were higher at the wetland located in a network of other marsh areas and agricultural land than at the suburban wetland. Immigration of …

The 1999·2000 Nebraska Christmas Bird Count, Stephen J. Dinsmore

Nebraska Bird Review

The 1999·2000 Christmas Bird Count (CBC) period included ten counts in Nebraska (Table 2). These counts reported a total of 133 species, a great total for so few counts. Counts were scattered statewide, but most effort was in the eastern half of the state where most of the birders are. The top count this year was Lake McConaughy, where the combination of several lingering rarities, excellent participation, and great count weather led to a new record Nebraska count of 101 species, breaking the old record of 87 species. Other excellent totals were 85 at Harlan County, 84 at Branched Oak-Seward, …

Review Of The Breeding Status Of Lewis's Woodpecker In Nebraska, Wayne J. Mollhoff

Nebraska Bird Review

Lewis's Woodpecker (Melanerpes lewis) was first mentioned as a possible breeder in Nebraska by Bruner (1901), who included it in a list of birds that breed in the state. None of the authorities he cited, however, had published conclusive evidence of breeding, and one of them (Bates 1900) cited only a winter record.

The species was mentioned in reports from the University of Nebraska field parties that worked in the Pine Ridge in 1900 and 1901. Crawford (1901) reports the discovery of only a single empty nest, despite weeks of fieldwork concentrated specifically on gathering nesting data on western species …

Yellow-Billed Loon At Lake Mcconaughy, Stephen J. Dinsmore, Joel G. Jorgensen

Nebraska Bird Review

On 8 August 1998 we observed a Yellow-billed loon (Gavia adamsii) at lake McConaughy in Keith County, Nebraska. We arrived at the pull-off on the south end of the dam at 6:25 p.m. and soon spotted a distant loon off the dam. On the basis of the yellow bill, head pattern, and large size, we concluded the bird was a Yellow-billed loon. We studied the bird until 7:33 p.m. and again from 9:03-9:45 a.m. on 9 August. Compared to a Common loon, this bird was huge and large-headed. The neck was very thick with an almost puffy appearance. …

First Record Of An Arctic Tern For Nebraska, Stephen J. Dinsmore

Nebraska Bird Review

On 20 September 2000, I arrived at Lake Minatare in Scotts Bluff County after the passage of a strong cold front the day before. At 11:36 a.m., I noticed two distant Sterna flying east of the lighthouse. Although the distance was great, I could see that one tern was a juvenile Forster's Tern while the other tern was clearly a different species. Even at a distance, I thought I could see a white cheek, a darker gray belly, and pale upperwings, all indications that the bird was an adult Arctic Tern. I then drove to the lighthouse and soon found …

Fall Field Report, August-November, 2000, W. Ross Silcock

Nebraska Bird Review

This fall season was amazing, or as Stephen Dinsmore put it: ''The birding was simply spectacular in western Nebraska this fall," There was something for everyone, whether rarity-chasers, taxonomists, listers, or whatever. There were no fewer than four new species for the state list (pending NOURC approval, of course!), a total of 315 species reported, and fascinating information on western subspecies in the Panhandle.

Numbers of western migrants reached record levels, exemplified by fall totals of 53 Townsend's Warblers, 25 MacGillivray's Warblers, and 28 Western Tanagers. By contrast, eastern migrant warblers in the east were almost non-existent.

At L McConaughy, …

Index To Volume 68

Nebraska Bird Review

Index