Ornithology Commons^™

Kentucky Warbler (Vol. 92, No. 2), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

History And Current Status Of The Northern Saw-Whet Owl (Aegolius Acadicus) In Arkansas, Mitchell L. Pruitt

Crop, Soil and Environmental Sciences Undergraduate Honors Theses

The secretive Northern Saw-whet Owl (Aegolius acadicus) is believed to be much more widespread during fall and winter than previously thought. Of the few places in the southern United States conducting research on this species, all have been successful at capturing birds. A total of 12 historic records existed for Arkansas until my work began in fall of 2014. The first confirmed record was in 1959 and the most recent was in 2010. Over the course of two field seasons, I captured and banded 24 saw-whet owls in rural Madison County. All birds were mist-netted along a trail, in …

Three-Dimensional Simulation For Fast Forward Flight Of A Calliope Hummingbird, Jialei Song, Bret W. Tobalske, Don Powers, Tyson Hedrick, Haoxiang Luo

Faculty Publications - Department of Biological & Molecular Science

We present a computational study of flapping-wing aerodynamics of a calliope hummingbird (Selasphorus calliope) during fast forward flight. Three-dimensional wing kinematics were incorporated into the model by extracting time-dependent wing position from high-speed videos of the bird flying in a wind tunnel at 8.3 m s⁻¹. The advance ratio, i.e. the ratio between flight speed and average wingtip speed, is around one. An immersed-boundary method was used to simulate flow around the wings and bird body. The result shows that both downstroke and upstroke in a wingbeat cycle produce significant thrust for the bird to overcome …

Stopover Ecology Of Ruby-Throated Hummingbirds (Archilochus Colubris) During Autumn Migration, Theodore Joseph Zenzal Jr

Dissertations

The Ruby-throated Hummingbird (Archilochus colubris) is one of the smallest Nearctic-Neotropical migrants and the only species of hummingbird that breeds in Eastern North America, yet few studies have investigated the biology of Ruby-throated Hummingbirds when they stopover during migration. Given their small size, high metabolism, aggression, and specialized diet, hummingbirds may represent a migrant that operates on the physiological edge. Therefore it is important to understand the factors that influence their stopover as well as the decision to resume migration. Towards this end, Ruby-throated Hummingbirds were captured during autumn migration along the northern coast of the Gulf of Mexico to …

Pheomelanin Pigment Is Not An Indicator Of Feather Corticosterone Content In Diurnal Migratory Raptors In Idaho, Christopher Porterfield

Boise State University Theses and Dissertations

In some cases, pigmentation can be used as an indicator of measures of condition. In this study, I tested the relationship between reddish pheomelanin pigmentation and the amount of corticosterone, a hormone associated with stress, sequestered in the feathers. I predicted that with higher corticosterone in feathers individuals would exhibit increased brightness and reduced saturation of pheomelanin pigments in their feathers. I collected spectral data from feathers from American Kestrels (Falco sparverius), Cooper’s Hawks (Accipiter cooperii), and Sharp-shinned Hawks (A. striatus) during migration in southwestern Idaho over two years (2010-2011). After extracting corticosterone from …

Morphological Variation Among Herring Gulls (Larus Argentatus) And Great Black-Backed Gulls (Larus Marinus) In Eastern North America, Gregory J. Robertson, Sheena Roul, Karel A. Allard, Cynthia Pekarik, Raphael A. Lavoie, Julie C. Ellis, Noah G. Perlut, Antony W. Diamond, Nikki Benjamin, Robert A. Ronconi, Scott G. Gilliland, Brian G. Veitch

Environmental Studies Faculty Publications

Herring Gull (Larus argentatus) and Great Black-backed Gull (L. marinus) morphometric data from various eastern North American locations was collected to examine the sources of variation in body size within and among geographic regions. For Herring Gulls, significant differences in all commonly taken measurements at local and regional scales were found. However, most of the variation in measurements was due to sex differences and the natural variance seen within local populations. Herring Gulls breeding in the Arctic did not show any evidence of being morphologically different from other groups. A discriminant function derived from a Newfoundland, …

Roof-Top Nesting In A Declining Population Of Herring Gulls (Larus Argentatus) In Portland, Maine, Usa, Noah G. Perlut, David N. Bonter, Julie C. Ellis, Margaret S. Friar

Environmental Studies Faculty Publications

A number of colonial waterbird species have been documented nesting on roof-tops throughout Europe and North America. The most common hypothesis explaining why gulls (Laridae) select roof-tops for nesting has been that population growth rates are higher than territory vacancy rates in traditional (island) habitat, suggesting that roof-tops are a non-preferred habitat. Roof-top habitat may actually be equal to or higher quality than island habitat as anthropogenic food is abundant and lower nest density may lead to lower intraspecific aggression and predation. During 2011–2012, reproductive effort and success was monitored in a regionally declining population of Herring Gulls (Larus …

Wpa News 99 (2016), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Spring 2016), number 99

Published by the World Pheasant Association

Population And Morphological Changes In American Kestrels Through Space And Time, Teresa E. Ely

School of Biological Sciences: Dissertations, Theses, and Student Research

A once common raptor, the American kestrel (Falco sparverius) has experienced population declines in the last two decades throughout North America. Many hypotheses exist about the decline, including mortality from West Nile virus, rodenticide poisoning, climate change, an increase in predators, and core habitat loss or degradation, which could influence food availability. Food availability is key to raptor survival and reproduction, and changes in food availability throughout the year can have lifelong effects on size and body condition. Here we examine how morphology, specifically mass and wing chord, has changed at seven migration sites throughout North America as …

Subscription And Organization Information [March 2016]

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 …

Nebraska Bird Review (March 2016) 84(1), Whole Issue

Nebraska Bird Review

Winter Field Report, December 2015 to February 2016 … 2

Color Photo Section (Woodland birds) … 25

Eight Years of Bird Banding at Nebraska’s Chadron State Park … 33

2015–2016 Christmas Bird Counts … 39

Nebraska Ornithologists’ Union Treasurer’s Report, December 31, 2015 … 54

Subscription and Organization Information ... 55

Winter Field Report, December 2015 To February 2016, W. Ross Silcock

Nebraska Bird Review

As has been the trend in recent years, many species are lingering later in fall and even arriving earlier in spring. Along with lingering birds, mid-winter and overwintering records have increased. This winter was phenomenal in this respect, especially in that records were across the board in terms of species, suggesting that water conditions have moderated (more open water) and temperatures in general have also (passerines). Unprecedented records included first wintering White-winged Scoter and first Jan or Feb record of Orange-crowned Warbler. Second or third such records were set by Blue-winged Teal, Surf Scoter, Ruddy Duck, Eared Grebe, Greater Yellowlegs, …

Eight Years Of Bird Banding In Nebraska’S Chadron State Park, Josh Lefever

Nebraska Bird Review

Each autumn since 2008, the Bird Conservancy of the Rockies has sent a trained biologist to capture, band, and collect data on the birds that make use of the Pine Ridge region on their journey south. Eight years of mist-netting at Chadron State Park, in the heart of the Pine Ridge, has given insights into the unique assemblage of birds found there, and how alteration by fire can affect birds' use of the habitat. The Chadron State Park banding station is located on a hillside near the west edge of the park, with an overstory of Ponderosa Pines and a …

Nebraska Ornithologists’ Union Treasurer’S Report, December 31, 2015

Nebraska Bird Review

One-page spreadsheet constituting the Nebraska Ornithologists' Union treasurer's report at year end (December 31) of 2015. The grand total is $59,997.24.

Woodland Birds, Color Photo Section [March 2016, Pp. 25–32]

Nebraska Bird Review

Photographs of Swainson’s Thrush, Prothonotary Warbler, Acadian Flycatcher, and Varied Thrush and Hairy Woodpecker (p. 25); White-eyed Vireo, Long-eared Owl, Great Crested Flycatcher, and Broad-winged Hawk (p. 26); Chestnut-sided Warbler, Ruby-crowned Kinglet, Yellow-rumped Warbler, and Bay-breasted Warbler (p. 27); Blackpoll Warbler, Tennessee Warbler, Eastern Towhee, Eastern Screech-Owl, and Green Heron (p. 28); quiz (four birds) (p. 29); Caspian Tern, Great Blue Heron, Buff-breasted Sandpipers, and Cattle Egret (p. 30); Mississippi Kite, Snow Buntings, White-winged Dove, and Black-bellied Plover (p. 31); and intermediate Northern Flicker, Dark-eyed (Pink-sided) Junco, Mourning Doves, and Eastern Phoebe (p. 32).

2015–2016 Christmas Bird Counts, Don Paseka

Nebraska Bird Review

Fifteen counts were held during the 2015–16 Christmas Bird Count season, which is one more than last season when the Harrison count was canceled. The Grand Island count was held on December 12, two days prior to the start of the officially sanctioned CBC time slot, but its results are included in this discussion.

Ten of the counts were done on or before December 22 under mild conditions with little snow cover and mostly to entirely open water. While the weather became more seasonable toward the end of the period, it was still fairly benign. As a result, most of …

Swans: Their Biology And Natural History, Paul A. Johnsgard

Zea E-Books Collection

The seven species of swans of the world are an easily and universally recognized group of waterfowl, which have historically played important roles in the folklore, myths and legends in many of the world’s cultures. Among the largest of all flying birds, they have also almost universally been used as symbols of royalty, grace and beauty, and largely for these reasons swans have only rarely been considered acceptable as targets for sport hunting. Swans occur on all the continents except Africa, although most species are associated with the temperate and arctic zones of North America and Eurasia. Among birds, swans …

Eggshell Pigment Composition Covaries With Phylogeny, Kaat Brulez, Ivan Miksik, Christopher R. Cooney, Mark E. Hauber, Paul George Lovell, Golo Maurer, Steven J. Portugal, Douglas Russell, Silas James Reynolds, Phillip Cassey

Publications and Research

No single hypothesis is likely to explain the diversity in eggshell coloration and patterning across birds, suggesting that eggshell appearance is most likely to have evolved to fulfill many nonexclusive functions. By controlling for nonindependent phylogenetic associations between related species, we describe this diversity using museum eggshells of 71 British breeding passerine species to examine how eggshell pigment composition and concentrations vary with phylogeny and with life-history and nesting ecology traits. Across species, concentrations of biliverdin and protoporphyrin, the two main pigments found in eggshells, were strongly and positively correlated, and both pigments strongly covaried with phylogenetic relatedness. Controlling for …

Kentucky Warbler (Vol. 92, No. 1), Kentucky Library Research Collections

The Kentucky Warbler

No abstract provided.

Rabbits And Rebounding Populations Bring Hope For Shrubland Birds, Robert A. Askins, Christopher R. Field

Biology Faculty Publications

No abstract provided.