Aticiaes el al. • NESTING OF YELLOW-OLIVE FLATBILLS 
555 
selecting nest sites, and frequently build nests 
dose to inactive nests from previous years. 
More research is required to understand which 
mechanism, or failure of mechanisms, contributes 
to the low nest survival we observed. The 
increased fledgling productivity suggests a bal¬ 
ance between high predation rates and enlarged 
clutch size in this species. 
ACKNOWLEDGMENTS 
We thank the National Council tor Scientific and 
Technological Development iCNPq) for fellowships to the 
authors. CNPq and FAPEMIG provided financial support 
through grants to MAM. We are grateful to COPASA-MG 
for authorization to study on their properties and to Charles 
Duca. Fabiane Sebato. Juliana Gonqalvcs, Andrcssa 
Bomfim. Paulo Cordeiro. and Marcos Maldonado-C'ocllio 
for nest-monitoring efforts. Paulo Cordeiro kindly provided 
the nest photograph. Catherine Bechtoldt. two anonymous 
referees, and the editor provided valuable suggestions that 
greatly improved the manuscript. 
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