Northeastern Naturalist Volume 28, Number 2, 2021

Contents. Click on the hotlinked titles to view open-access first pages with abstracts.

Front cover
Inside front cover
Board of Editors/indicia page
RESEARCH ARTICLES
*Activity, Movements, and Microenvironment Associations of Siren intermedia* (Lesser Siren) in a Western Kentucky Wetland Complex** Allison G. Davis, Wendy Leuenberger, Andrea N. Drayer, and Steven J. Price	114
Use of Great Lakes Recreational Beaches and Human-waste Sites by Ring-billed Gulls Dustin W. Jordan, Thomas M. Gehring, Nancy E. Seefelt, and Elizabeth W. Alm	127
*Long-term Trends in the Occurrence of Disseminated Neoplasia in a Population of Mya arenaria* (Softshell Clam) from a New Hampshire Estuary** Paul Geoghegan, Jamie O’Brien, Charles W. Walker, MacKenzie Heagy, and S. Anne Böttger	137
*Mitochondrial DNA Barcoding Reveals First Documented Evidence of Golden Redhorse (Moxostoma erythrurum) in the Susquehanna River, Pennsylvania* Gregory R Moyer, Ryan Shaw, and Timothy Wertz	149
Estimating Abundance and Occupancy of Northern Barrens Tiger Beetles in an Isolated New York Population McKenzie D. Wybron, Matthew D. Schlesinger, Melissa K. Fierke, Jacqueline L. Frair, and Dylan Parry	156
Live-capture Techniques for Colonizing Nine-banded Armadillos Carly J. Haywood, Clayton K. Nielsen, and F. Agustín Jiménez	169
Estimated Abundance of Hydrobates leucorhous (Leach’s Storm-Petrel) on Hay Island, New Brunswick Rhyl Frith, David M. Krug, Robert A. Ronconi, and Sarah N.P. Wong	179
Comparison of Brook Trout Abundance and Distribution in Vermont’s Streams between the 1950s and the 2000s Jud F. Kratzer, Peter McHugh, Richard Kirn, and William H. Eldridge	189
Abundant Natural Cavities in a Deciduous Forest Leads to a Lack of Nest-box Occupancy by Northern Saw-whet Owls Joseph M. Elias and Scott H. Stoleson	202
*Conservation Measures to Increase Breeding Success of Cliff Swallows (Petrochelidon pyrrhonota) in Massachusetts* Mara Silver, Linda L. Merry, and Charles R. Brown	211
Diversity, Distribution and Habitat Use of Freshwater Crayfish in the Upper Appomattox River Basin, Virginia Sujan Henkanaththegedara, David Conner, Connor Perry, and Zachary Loughman	220
NOTES
*First Observation of Movement Rates and Repeated Migration in a Western Atlantic Torpedo (Tetronarce occidentalis) in the Northwest Atlantic Ocean* Keith J. Dunton, Kelsey Sparta, Michael G. Frisk, Christopher M. Martinez, and Oliver N. Shipley	N7
*A Subtropical Nudibranch, Polycera hummi* (Abbott 1952), Described for the First Time from Virginia** Wissam A. Jawad, Stacy A. Krueger-Hadfield, and P.G. Ross	N15
*Long-distance Movement over a Period of Days by a Female Myotis lucifugus* in Newfoundland, Canada** Julia S. Sunga, Jessica Humber, Bruce Rodrigues, Liam McGuire, and Hugh Broders	N24
*Egg-laying Behavior in Lithasia armigera* (Say, 1821) (Gastropoda: Cerithioidea: Pleuroceridae)** Jeremy Tiemann, Trisha Gibson, Jacqualyn Halmbacher, and G. Thomas Watters	N27