520 
THE WILSON JOURNAL OF ORNITHOLOGY • Vol 123, No. 3. September 2011 
Vickery, P. D. 1996. Grasshopper Sparrow (Ammodramus 
savannarum). The birds of North America. 
Number 239. 
Yezerinac, S. M., P. J. Weatherhead, and P. T. Boag. 
1996. Cuckoldry and lack of parentage-dependent 
paternal care in Yellow Warblers: a cost-benefii 
approach. Animal Behaviour 52:821-832. 
Young Jr., D. P. 1987. Observations of Grasshopper 
Sparrows nesting in Clarke County. Oriole 52:49- 
50. 
