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Giant Cowbird {Molothrus oryzivorus ) parasitism of Red-rumped Caciques (Cacicus haemorrhous) in the 
Atlantic Forest, northeastern Argentina 
Rosendo M. Fraga 
Altitudinal variation in parental provisioning of nestling Varied Tits (Poecile varius) 
JongKoo Lee, Ok-Sik Chung, and Woo-Shin Lee 
Avifauna of the Gran Pajonal and southern Cerros del Sira, Peru 
Michael G. Harvey, Benjamin M. Winger, Glenn F. Seeholzer, and Daniel Caceres A 
Genetic barcode RFLP analysis of the Nelson’s and Saltmarsh sparrow hybrid zone 
Jennifer Walsh, Adrienne /. Kovach, Oksana P. Lane, Kathleen M. O'Brien, and Kimberly J. Babbitt 
The White-collared Kite (Leptodon forbesi Swann, 1922) and a review of the taxonomy of the Grey- headed 
Kite (Leptodon cayanensis Latham, 1790) 
Francisco Voeroes Dims, Luis Fdbio Silveira, Sergio Seipke, Russell Thorstrom, William S. Clark, and 
Jean-Marc Thiollay 
Interactions of raptors and Lesser Prairie-Chickens at leks in the Texas Southern High Plains 
Adam C. Behney Clint W. Boal, Heather A. Whitlaw, and Duane R Lucia 
Geographic variation in Type 1 songs of Black-throated Gray Warblers 
Stewart W. Janes and Lee Ryker 
Search behavior of arboreal insectivorous migrants at Gulf Coast stopover sites in spring 
Chao-Chieh Chen, Wylie C. Barrow Jr., Keith Ouchley and Robert B. Hamilton 
Non-breeding ecology of Loggerhead Shrikes in Kentucky 
Erin O’Brien and Gary Ritchison 
Sex and age ratios of Bicknell's Thrush wintering in Hispaniola 
Jason M. Townsend, Christopher C. Rimmer, Andrea K. Townsend, and Kent P. McFarland 
Short Communications 
Use of ultraviolet light as an aid in age classification of owls 
C. Scott Weidensaul, Bruce A. Colvin, David F. Brinker, andj. Steven Huy 
Breeding dispersal of a Burrowing Owl from Arizona to Saskatchewan 
Geoffrey L. Holroyd, Courtney J. Conway and Helen E. Trefry 
High density nesting of Black-backed Woodpeckers (Picoides arcticus) in a post-fire Great Lakes jack pine 
forest 
Joseph A. Youngman and Zach G. Gayk 
Egg success, hatching success, and nest-site selection of Brown Pelicans, Gaillard Island, Alabama, USA 
Orin J. Robinson and John J. Dindo 
Nest, eggs, and nesting behavior of the Gray Trembler (Cinclocerthia gutturalis) on St. Lucia, West Indies 
Joshua B. LaPergola, Jennifer L. Mortensen, and Robert L. Curry 
Behavior of Warbling Vireos ejecting real and artificial cowbird eggs 
Todd J. Underwood and Spencer G. Sealy 
Conspecific egg destruction by a female Cerulean Warbler 
Than]. Boves, David A. Buehler, and N. Emily Boves 
Harpy Eagle-primate interactions in the central Amazon 
Bryan Bernard Lenz and Alaercio Marajd dos Reis 
Common Raven predation on the sand crab 
Paul Hendricks and Lisa M. Hendricks 
Cavity-nesting by the Black-billed Magpie {Pica hudsonia) 
K. Richard Stauffer and L Scott Johnson 
3otteris Sparrow {Peucaea botterii) occurs in northern Coahuila, Mexico 
°aul van Els. Ricardo Canales-del- Castillo, and John Klicka 
Hie Orange-breasted Thornbird (Phacellodomusferrugineiguld){ Furnariidae): 
Cowbird {Molothrus bonariensis ) (Icteridae) 
Giovanni Nathtigall Mauncio 
new effective host of Shiny 
