CONTENTS OF VOLUME 123 
NUMBER 1 
Major Articles 
Species limits in antbirds (Thamnophilidae): the Scale-backed Antbird (Willisornispoecilinotus) complex 
Morton L. Isler and Bret M. Whitney 
High apparent annual survival and stable territory dynamics of Chestnut-backed Antbird (.Myrmeciza exsut) 
in a large Costa Rican rain foresr preserve 
Stefan Woltmann and Thomas W. Sherry 
Ornithological records from a campina/campinarana enclave 
Edson Guuherme and Sdrgio H. Borges 
on the upper Jurui River, Acre, Brazil 
Stable nitrogen and carbon isotopes may not be good indicators of altitudinal distributions of montane 
E-a3?« Chang, Kent A. Hatch. Hsin-Lm Wei, Hsiao-Wei Yuan, Cheng-FengYou, 
Dennis Eggett, Yi-Hsuan Tu, Ya-Ling Lin, and Hau-Jie Shiu 
48 Seasonal fecundity and source-sink status of shrub-nesting birds in a southwestern riparian corridor 
L. Arriana Brand and Barry R. Noon 
19 Wintering bird response to fall mowing of herbaceous buffers 
Peter J. Blank, Jared R. Parks, and Galen P. Dively 
65 Interspecific variation in habitat preferences of grassland birds wintering in southern pine savannas 
Matthew E. Brooks and Philip C Stauffer 
76 Geographic song variation in the non-oscine Cuban Tody (Todtis multicolor) 
Eneider E. Ptrez Mena and Emanuel C. Mora 
85 Observations on the natural history of the Royal Sunangel (Heliangelus regalis) in the Nangantza Valley, 
Juan F. Freile, Paolo Piedrahita, Galo BuitrSn-Jurado, Carlos A. Rodriguez, 
Oswaldo Jaddn, and Elisa Bonaccorso 
93 Nesting behavior of Saochenyis Monal-Partridge in treeline habitats, Pamuling Mountains, China 
Kai Zhang, Nan Yang, Yu Xu, Jianghong Ran, Huw Lloyd, and Bisong Yue 
97 Reproductive status of Swallow-tailed Kites in east-central Arkansas 
Scott J. Chiavacci, Troy J. Bader. Amy M. St. Pierre. James C. Bednarz, and 
Karen L. Rowe 
102 Nestling behavior and parental care of the Common Potoo Wyctibm grisem) in southeastern Brazil 
Char Cestari. Andri C. Guaraldo, and Carlos O. A. Custom 
107 Botfljf parasitism effects on nestling growth and mortality of Red-crested Cardinals 
Luciano N. Segura and Juan C. Reboreda 
116 Muscle membrane phospholipid class composition rekti ° n ” miBrati0 " 
Jeremy Springer. Edwin R. Price, Raymond Thomas, and Christopher G. Gughelmo 
111 Geolocation tracking of the annual migration of adult Australasian Gannets (MorusscnawA bteedtng tn New 
htefanUM. H. I,mar, Richard A. Phillips. Matt], Rayner, and Mark E. Hauber 
126 Birds consumed by the invasive Burmese python t Python molurus M in Everglades Nattonal Park, 
Carl?/. Dmr. Ray W Snow. Micha'I R. RochforcL and Frank], Mazzom 
132 Intcrbreeding of Aechmophorus grebes 
B7 
Fernando Castillo. Renata Duraes, and Nory El Ksabi 
