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Articles 1 - 30 of 1536
Full-Text Articles in Population Biology
Genomic Analysis Reveals New Subspecies Of Cercyonis Scudder, 1875 (Nymphalidae: Satyrinae: Satyrini), Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Todd L. Stout, Michael S. Fisher, Robb Hannawacker, Nick V. Grishin
Genomic Analysis Reveals New Subspecies Of Cercyonis Scudder, 1875 (Nymphalidae: Satyrinae: Satyrini), Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Todd L. Stout, Michael S. Fisher, Robb Hannawacker, Nick V. Grishin
The Taxonomic Report of the International Lepidoptera Survey
Genomic analysis of Cercyonis (Cercyonis) Scudder, 1875 (Nymphalidae Rafinesque, 1815) partitions the subgenus into three species groups and reveals five new subspecies from the USA (type localities in parentheses): Cercyonis (Cercyonis) pegala koosharem Stout and Grishin, ssp. n. (Utah, Sevier Co.), Cercyonis (Cercyonis) pegala lasala Grishin, M. Fisher, and Hannawacker ssp. n. (Utah, Grand Co.), Cercyonis (Cercyonis) pegala hortoni Grishin, ssp. n. (Arizona, Gila Co.), Cercyonis (Cercyonis) meadii maculana Grishin, ssp. n. (Colorado, Montezuma Co.), and Cercyonis (Cercyonis) meadii rimana Grishin, ssp. n. (Arizona, Yavapai Co.). A neotype is designated for Satyrus boopis Behr, 1864 (USA, California, Contra Costa Co.). …
Butterfly Taxa Discovery Via Genomic Analysis, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
Butterfly Taxa Discovery Via Genomic Analysis, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
The Taxonomic Report of the International Lepidoptera Survey
Expanding a genomics-guided assessment of butterfly taxonomy, we integrate phylogenetic evidence from all protein-coding genes with morphological considerations to refine our understanding of butterfly systematics and discover new taxa. As a result, 2 subgenera, 39 species, and 5 subspecies are proposed as new (type species in original combinations or type localities are listed in parentheses): Erebia (Magda) magdalena uintana Grishin, ssp. n. (USA: Utah, Uintah Co.) in Nymphalidae Rafinesque, 1815; Myselasia rondea Grishin, sp. n. (Brazil: Rondônia), Myselasia pseudocrinon Grishin, sp. n. (Ecuador: Pastaza), Myselasia paramatuta Grishin, sp. n. (Ecuador: Morona-Santiago), Euselasia anapellos Grishin, sp. n. (Peru: Loreto), …
Recognition Of The Spring Flight Of Celastrina (Tutt) (Lycaenidae: Polyommatinae) In Southern New England As An Introgressed Hybrid Species, Harry Pavulaan
Recognition Of The Spring Flight Of Celastrina (Tutt) (Lycaenidae: Polyommatinae) In Southern New England As An Introgressed Hybrid Species, Harry Pavulaan
The Taxonomic Report of the International Lepidoptera Survey
Populations of Celastrina (“Azure”) butterflies in southern New England have historically been referred to as either C. ladon (Cramer) or C. lucia (W. Kirby) by various authors. Following the discovery of elongated dorsal wing scales in males of C. ladon (D. Wright & Pavulaan, 1999; Ômura et al., 2015)—structures that replace the androconia that are typically present in most Celastrina species—it was believed that this trait was restricted to C. ladon, C. nigra (W. Forbes), and, more recently, C. iryna (Pavulaan, 2025). Microscopic examination of male “Spring Azure” specimens from across southern New …
A New Subspecies Of Papilio Indra (Papilionidae) From The West Desert Of Utah, Usa, Wayne H. Whaley, Alexander A. Jason, Todd L. Stout
A New Subspecies Of Papilio Indra (Papilionidae) From The West Desert Of Utah, Usa, Wayne H. Whaley, Alexander A. Jason, Todd L. Stout
The Taxonomic Report of the International Lepidoptera Survey
Papilio indra bonnevillensis is a new described subspecies partly based on taxonomic rearrangement of its larval host plant reproductive phenology relative to Wasatch Range nominate P. indra. It is geographically isolated in Utah’s West Desert from populations of ssp. nevadensis to the west and ssp. calcicola to the south. In addition to phenological differences compared to these two subspecies, it merits description based on host Lomatium depauperatum which recently speciated from L. grayi, neither of which is used as host by other subspecies of P. indra. The evolution of new host L. depauperatum is …
Louisiana Species Of The Genus Xestia Hübner And The Genus Agnorisma Lafontaine, Vernon Antoine Brou Jr., Charlotte Dozar Brou
Louisiana Species Of The Genus Xestia Hübner And The Genus Agnorisma Lafontaine, Vernon Antoine Brou Jr., Charlotte Dozar Brou
The Taxonomic Report of the International Lepidoptera Survey
We address three species of the genus Xestia Hübner recorded for the state of Louisiana: Xestia dilucida (Morrison), Xestia elimata (Guenée) and Xestia c-nigrum (Linnaeus), and we also address new state capture records for Agnorisma badinodis (Grote) and Agnorisma bollii in Louisiana.
Three Butterfly Genera Across The Central Texas Suture Zone, Qian Cong, Jing Zhang, Jinhui Shen, Leina Song, Nick V. Grishin
Three Butterfly Genera Across The Central Texas Suture Zone, Qian Cong, Jing Zhang, Jinhui Shen, Leina Song, Nick V. Grishin
The Taxonomic Report of the International Lepidoptera Survey
Genome-scale analyses of butterfly specimens across the Central Texas Suture Zone revealed that several taxa currently treated as subspecies exhibit genomic differentiation similar to that observed between species. Further investigation and genomic sequencing of additional specimens from across the ranges of these taxa support this conclusion and result in the following changes to nomenclature and taxonomy. Two new subspecies of Nymphalidae Rafinesque, 1815 are described: Asterocampa louisa monterra Grishin, ssp. n. (type locality in Mexico: Nuevo León) and Asterocampa clyton plana Grishin, ssp. n. (type locality in USA: Texas, Denton Co.). The following taxa are recognized as species, not subspecies: …
Observations Of Puddling Butterflies In Maryland, Usa, Aydin Örstan
Observations Of Puddling Butterflies In Maryland, Usa, Aydin Örstan
The Taxonomic Report of the International Lepidoptera Survey
Six butterfly species in four families were observed puddling on damp soil, scat and carrion in various locations in Montgomery County, Maryland and on small islands in the Potomac River. Four species preferred damp soil to nearby mud, but the reason for this behavior is unknown. The presence of butterflies on small islands in the Potomac River is documented for the first time.
A Taxonomic Overview Of The Apodemia Mormo Complex From A Genomic Perspective, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
A Taxonomic Overview Of The Apodemia Mormo Complex From A Genomic Perspective, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
The Taxonomic Report of the International Lepidoptera Survey
Genomic analysis of the Apodemia mormo group (Riodinidae Grote, 1895 (1827)) specimens across the range from southwestern Canada through much of the western USA and northwestern Mexico, complemented by phenotypic examination and photographs of live individuals to inspect eye color, partitions the complex into eight species, one of which is proposed as new: Apodemia (Apodemia) apache Grishin, sp. n. (type locality in USA: Arizona, Apache Co.), and three elevated from subspecies of A. mejicanus: Apodemia (Apodemia) maxima (Weeks, 1891), stat. rest., Apodemia (Apodemia) deserti W. Barnes & McDunnough, 1918, stat. nov., and Apodemia ( …
Vultures, Bryan M. Kluever, Lee A. Humberg, Scott C. Barras
Vultures, Bryan M. Kluever, Lee A. Humberg, Scott C. Barras
Wildlife Damage Management Technical Series
Fact sheet about vultures including information about human--wildlife conflicts, the vulture roost, affects on livestock, structures, human health and safety, identification of damage, management methods, legal considerations, and economics. Also included is an overview of the species.
Western Massasauga (Sistrurus Tergeminus): A Species Conservation Assessment For The Nebraska Natural Legacy Project, Colleen Rothe-Groleau, Melissa J. Panella
Western Massasauga (Sistrurus Tergeminus): A Species Conservation Assessment For The Nebraska Natural Legacy Project, Colleen Rothe-Groleau, Melissa J. Panella
Nebraska Game and Parks Commission: Publications
The Nebraska Natural Legacy Project recognizes the western massasauga (Sistrurus tergeminus) as a Tier I at-risk species. Provided are some general management recommendations regarding western massasaugas. Conservation practitioners will need to use professional judgment to make specific management decisions based on objectives, location, and a multitude of variables. This resource was designed to share available knowledge of this at-risk species that will aid in the decision-making process or in identifying research needs to benefit the species.
Criteria for selection as Tier I: State listed, G3
Estimated Population in NE: 1,000–2,500
Estimate based on: Field surveys
Trends since 2005 …
A New Subspecies Of Celastrina Lucia (W. Kirby) (Lycaenidae: Polyommatinae) In The Central Appalachian Mountain Region, Harry Pavulaan
A New Subspecies Of Celastrina Lucia (W. Kirby) (Lycaenidae: Polyommatinae) In The Central Appalachian Mountain Region, Harry Pavulaan
The Taxonomic Report of the International Lepidoptera Survey
The Celastrina (“Azure”) populations of the central Appalachian Mountain region have traditionally been identified as Celastrina ladon (Cramer) by numerous authors. However, the discovery of elongated dorsal wing scales in males of C. ladon (Wright & Pavulaan, 1999; Ômura et al., 2015) established that this diagnostic trait is limited to C. ladon, C. nigra (W. Forbes), and subsequently C. iryna (Pavulaan). Microscopic examination of male “Spring Azure” specimens from higher elevations in the Appalachian Mountains revealed a complete absence of these elongated scales in the resident populations, despite their outward resemblance to C. ladon …
Update To: New Butterfly Taxa And Findings From Genomic Analyses, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
Update To: New Butterfly Taxa And Findings From Genomic Analyses, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
The Taxonomic Report of the International Lepidoptera Survey
Due to the United States government shutdown, GenBank services were unavailable, and accession numbers could not be obtained for the sequences reported in the original publication. This update provides the GenBank accession numbers for these sequences, together with additional taxonomic findings accumulated since the initial study. One genus, 16 species and four subspecies are proposed as new (type species or localities in parentheses): Madaga Grishin, gen. n. (Artitropa alaotrana Oberthür, 1916), Udranomia eurianus Grishin, sp. n. (Ecuador: Napo), Entheus dalina Grishin, sp. n. (Brazil: Pará), Entheus ambo Grishin, sp. n. (Colombia: Cauca), Entheus pico Grishin, sp. n. (Colombia: Valle …
The Nebraska Bird Review (December 2025) 93(4), Whole Issue
The Nebraska Bird Review (December 2025) 93(4), Whole Issue
Nebraska Bird Review
Changes to The Nebraska Bird Review, by Janis Paseka
Fall Field Report, August–November 2025, by W. Ross Silcock
First definitive records of Hermit Thrush and Wilson’s Warbler subspecies for Nebraska, by Stephen J. Brenner and Joel G. Jorgensen
Ogallala Fall Field Days, Sept. 26–28, 2025
Index to Volume 93
Subscription and Organization Information
Index To Volume 93
Nebraska Bird Review
Adams, Morgan
Aguiar: Maritza, Stephanie
Albright, Don
Alexander: Jeff, Jan
Aliferis, Taylor
Allard, Savannah
Allen, Edward
Allison, Betty
Altman, Dakota
Alvarado, A. H.
Ammon, E. M.
Anandan, Sampath Kumar
Andersen, Brett
Anderson: Ann, Chris, Will
Andrews, Ryan
Anhinga
Ani, Groove-billed
Annunziata, Laura
Armstrong, Nancy
Augustine, Jackie
Aurilio, James
Avocet, American
. . .
Zagst: Fred, Kay
Zeillemaker, Fred
Zemaitis, William
Zicafoose, Kirby
Zonotrichia leucophrys: gambelii, leucophrys, oriantha
First Definitive Records Of Hermit Thrush And Wilson’S Warbler Subspecies For Nebraska, Stephen J. Brenner, Joel G. Jorgensen
First Definitive Records Of Hermit Thrush And Wilson’S Warbler Subspecies For Nebraska, Stephen J. Brenner, Joel G. Jorgensen
Nebraska Bird Review
During the fall of 2025, we initiated a pilot migratory bird-banding project in the Nebraska Panhandle. While the project’s goals included examining species composition, volume, and body condition of migratory birds at the western edge of the state compared to the eastern edge of the state, we also used this project to document the occurrence of subspecies and species which are very challenging or impossible to identify through field observation. Here, we report on the first definitive records of two subspecies in Nebraska.
On 16 September 2025, SJB banded an adult male Wilson’s Warbler (Cardellina pusilla) that was …
Fall Field Report, August–November 2025, W. Ross Silcock
Fall Field Report, August–November 2025, W. Ross Silcock
Nebraska Bird Review
As in previous fall seasons, by far the most modifications to BONO came from late departure dates; around 87 species were included, no fewer than 13 of these setting record late dates, notably Eastern Whip-poor-will, Mountain Plover, Brown Thrasher (north), Henslow’s Sparrow (flight call only), and Orchard Oriole.
Although this is a Fall Seasonal Report, noted or suggested breeding activity is of interest. Exciting were the 2nd and 3rd presumed breeding records of Black-chinned Hummingbird and, in Dodge Co, the 5th record of breeding by Black-bellied Whistling-Duck. Perhaps the strangest west to east occurrence was a Golden Eagle adventure in …
Changes To The Nebraska Bird Review, Janis Paseka
Changes To The Nebraska Bird Review, Janis Paseka
Nebraska Bird Review
As of this issue, The Nebraska Bird Review has been in existence for 93 years, looking very much now as it did when it began in 1933. However, due to the increasing costs of printing and postage, there will be some changes in its future. Our newsletter, The Burrowing Owl, is already provided online to our members, in a user-friendly and informative form. Future issues of The Nebraska Bird Review will also utilize a digital format to offer a more timely and colorful publication.
This is the final issue for which Ross Silcock will be compiler of the seasonal …
Ogallala Fall Field Days, Janis Paseka
Ogallala Fall Field Days, Janis Paseka
Nebraska Bird Review
The 2025 NOU Fall Field Days were held in Ogallala on September 26–28, with about 80 in attendance. The programs were held at the Quality Inn, and the meeting was planned by Boni Edwards, Dave Cunningham, and Paul Pearson. Field trips were led by Tobin and Keegan Brown, Jacob Cooper and UNK ornithology students, Joel Jorgensen and Stephen Brenner, T. J. Walker, and Thane Dinsdale. Destinations included various sites around Lake McConaughy, Lake Ogallala, Cedar Point Biological Station, Sutherland Reservoir SRA, Ash Hollow State Historical Park, Crescent Lake NWR, Arthur Co and various Sandhills lakes. The total species count was …
New Butterfly Taxa And Findings From Genomic Analyses, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
New Butterfly Taxa And Findings From Genomic Analyses, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick V. Grishin
The Taxonomic Report of the International Lepidoptera Survey
Continuing our genomics-driven exploration of butterfly taxonomy, we integrate phylogenetic trees from all protein-coding genes with existing taxonomic and phenotypic knowledge and uncover further insights into butterfly systematics. As a result, one subgenus, 44 species, and 11 subspecies are proposed as new (type species in original combinations or type localities are listed in parentheses): Porphaurea Grishin, subgen. n. (Phoenicops porphyropis Meyrick & Lower, 1902) of Chaetocneme C. Felder, 1860 in Hesperiidae Latreille, 1809; Dione (Agraulis) lamasi Grishin, sp. n. (Peru: Cuzco) in Nymphalidae Rafinesque, 1815; Lasaia (Lasaia) chiapis Grishin, sp. n. (Mexico: Chiapas), Lasaia …
A Previously Unrecognized Species Of Celastrina From The Southeastern Coastal Plain Region Of The United States (Lycaenidae: Polyommatinae) Named In Honor Of The Memory Of Iryna Zarutska, Harry Pavulaan
The Taxonomic Report of the International Lepidoptera Survey
New species Celastrina iryna is described from the southeastern coastal plain of the United States. This species is most similar to C. neglecta but differs by possession of the unique dorsal overlay of clear wing scales found in C. ladon males. It is hypothesized that this may be a hybrid species. Some aspects of its life history remain unknown and call for further field research. The species name is a tribute to Iryna Zarutska, of Charlotte, North Carolina.
The Official List Of The Birds Of Nebraska: 2024, Mark A. Brogie
The Official List Of The Birds Of Nebraska: 2024, Mark A. Brogie
Nebraska Bird Review
The duties of the Nebraska Ornithologists’ Union Records Committee (NOURC 2010) include:
A. The committee shall publish an official list of the birds of Nebraska.
B. The official list will include all those species whose occurrence has been reported in Nebraska (and approved by the NOURC).
C. The committee shall keep the official list current.
D. The committee shall publish a list of species for which details are requested with every sighting reported.
The 2024 NOURC has completed the above-described duties, and the following is a result of its endeavors.
The “Official List of the Birds of Nebraska” was last …
First Confirmed Nebraska Breeding Record Of The Common Raven (Corvus Corax) Since The 19th Century, Eugene A. Huryn, Jacob C. Cooper
First Confirmed Nebraska Breeding Record Of The Common Raven (Corvus Corax) Since The 19th Century, Eugene A. Huryn, Jacob C. Cooper
Nebraska Bird Review
In Nebraska, the Common Raven was likely widespread prior to 1900, being codistributed with the American Bison (Bison bison). Records in this time are spotty, but consistent. Thomas Say reported a nearly fledged brood—the only confirmed breeding record in this period—at Fort Calhoun in Washington County on May 12, 1820. A Common Raven was collected at Fort Randall, on the Missouri River just north of the modern Nebraska–South Dakota border, in the fall of 1857 during the Lieutenant Warren Expeditions. Another specimen, now lost, was collected by J. B. Hasty in 1899 in Arapahoe, Furnas County. Bruner et …
Summer Field Report, June–July 2025, W. Ross Silcock
Summer Field Report, June–July 2025, W. Ross Silcock
Nebraska Bird Review
I have mentioned previously the breeding categories that are available to observers in eBird checklists. This database is becoming more comprehensive and useful, and I encourage observers to use this eBird feature.
Usefulness of Merlin-derived checklists continues to be an issue. As an example, Merlin seems to love White-winged Doves; there were 52 undocumented Merlin reports of this species this summer, no doubt some correctly identified and acceptable if observers had taken a minute to add even minimal observation details to support Merlin’s identifications.
A vexing issue for me is determining the status of midsummer (i.e. between spring and fall …
The Nebraska Bird Review (September 2025) 93(3), Whole Issue
The Nebraska Bird Review (September 2025) 93(3), Whole Issue
Nebraska Bird Review
Summer Field Report, June–July 2025, by W. Ross Silcock
First Confirmed Nebraska Breeding Record of the Common Raven (Corvus corax) since the 19th Century, by Eugene A. Huryn and Jacob C. Cooper
2024 (36th) Report of the NOU Records Committee, by Mark A. Brogie
The Official List of the Birds of Nebraska: 2024, compiled by Mark A. Brogie
Subscription and Organization Information
2024 (36th) Report Of The Nou Records Committee, Mark A. Brogie
2024 (36th) Report Of The Nou Records Committee, Mark A. Brogie
Nebraska Bird Review
The functions and methods of the Nebraska Ornithologists’ Union Records Committee (NOURC) are described in its bylaws (NOURC 2010). The committee’s purpose is to provide a procedure for documenting unusual bird sightings and to establish a list of all documented birds for Nebraska. Species for which the NOURC seeks documentation (NOURC Review List) can be found at the NOU website: www.NOUbirds.org.
Starting in 2020, the NOURC decided to deal mainly with those species deemed as Accidental on the “Official List of the Birds of Nebraska.” Casual species and out-of- range species are now summarized in the “Seasonal Reports” of the …
Distributional Records Of Blanding’S Turtles (Emydoidea Blandingii) In Nebraska, Sam Thede, Dan Fogell, Keith Geluso
Distributional Records Of Blanding’S Turtles (Emydoidea Blandingii) In Nebraska, Sam Thede, Dan Fogell, Keith Geluso
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Blanding’s Turtle (Emydoidea blandingii) is a species of concern in North America as many populations have declined across its distribution. Environmental factors associated with alteration of natural ecosystems have played a role in declines leading to many isolated populations. Most populations exist in the Great Lakes region with a number of outlying populations, such as Nebraska. Understanding the current distribution of the species will facilitate regional management strategies to protect this species into the future. In Nebraska, Blanding’s Turtles were known from 23 counties prior to this study. Herein, we report on eight new county records, five (Blaine, …
Simulated Walleye Responses To Various Harvest Regulations In A Nebraska Reservoir, Mikael Ranta, Melissa Wuellner, Keith D. Koupal
Simulated Walleye Responses To Various Harvest Regulations In A Nebraska Reservoir, Mikael Ranta, Melissa Wuellner, Keith D. Koupal
Transactions of the Nebraska Academy of Sciences and Affiliated Societies
Recreational fishing provides sociological and economic benefits, and fish populations are managed by state agencies to meet angler expectations. One of the most popular species in Midwest reservoirs are walleye (Sander vitreus), and most of these fisheries have established restrictions on the number and sizes of fish harvested. Regulations are set based on population structure and dynamics and management goals, but often agencies have incomplete information needed to establish regulations. Predictive models can provide insight on population responses and inform managers of the tradeoffs between angler restrictions and population sustainability. Lake McConaughy, Nebraska, supports a popular walleye fishery. …
Update To: Advancing Butterfly Systematics Through Genomic Analysis, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick Grishin
Update To: Advancing Butterfly Systematics Through Genomic Analysis, Jing Zhang, Qian Cong, Jinhui Shen, Leina Song, Nick Grishin
The Taxonomic Report of the International Lepidoptera Survey
In this update, we propose (type species or type localities in parentheses): Lochris Grishin, nom. nov. (Lasaia oileus Godman, 1903; Lepidoptera: Riodinidae) as a new substitute name for Locris Grishin, 2025 preoccupied by Locris Stål, 1866 (Cercopis rubra Fabricius, 1794; Hemiptera: Cercopidae), 5 new species, and 5 new subspecies: Emesis (Mandania) mandarina Grishin, sp. n. (Brazil: Santa Catarina) and Emesis (Mandania) mandela Grishin, sp. n. (Venezuela, Carabobo) in Riodinidae Grote, 1895 (1827); others in Hesperiidae Latreille, 1809: Telegonus (Rhabdoides) flavifimbro Grishin, sp. n. (Colombia), Urbanus (Urbanoides) dolus Grishin, sp. n. (Colombia: …
Catching A Fever: A Comparison Of Vachellia Xanthophloea Populations In The Limpopo And Luvuvhu River Floodplains Of The Makuleke Contractual Park, Kianie B. David
Catching A Fever: A Comparison Of Vachellia Xanthophloea Populations In The Limpopo And Luvuvhu River Floodplains Of The Makuleke Contractual Park, Kianie B. David
School of Natural Resources: Dissertations, Theses, and Student Research
This study investigates patterns of stand structure regeneration, growth characteristics, and coarse woody debris (CWD) patterns in Vachellia xanthophloea (fever tree) stands within the Makuleke Contractual Park (MCP), a semi-arid savanna system in northern Kruger National Park (KNP), South Africa. Fieldwork was conducted across two stand types: a monospecific fever tree stand in Rietbok Vlei and a mixed-species stand in the Western Nhlangaluwe Floodplain where fever tree is established with Faidherbia albida (ana tree). Data were collected from 20 total 1/4-acre (1,011 m2) circular plots between both stands in 2024 and 2025, including seedling root collar diameter (RCD), …
An Unusual Trumpeter Swan (Cygnus Buccinator) In Nebraska: Albinism Or Leucism?, Jacob C. Cooper, Peggy M. Huss, Eugene A. Huryn, Cody Mcgregor
An Unusual Trumpeter Swan (Cygnus Buccinator) In Nebraska: Albinism Or Leucism?, Jacob C. Cooper, Peggy M. Huss, Eugene A. Huryn, Cody Mcgregor
Nebraska Bird Review
On 26 January 2025, we observed a large mixed flock of Trumpeter Swans (Cygnus buccinator) and Tundra Swans (C. columbianus) at Hansen Reservoir ca. 7 miles (11 km) NNW of North Platte along the east side of Nebraska Highway 97. The flock of 158 swans consisted of 4 “Whistling” Tundra Swans (C. c. columbianus), 153 typical Trumpeter Swans, and one individual that we were not immediately able to identify. Our unknown swan was in the company of a family group of Trumpeter Swans but immediately stood out due to its broad yellow base of …