7. 





Fig. 5. Nesting Place of Prothonotary Warbler in bridge over Missis- 

 sippi River, opposite La Crescent, Minn. Upper right-hand figure, nest 

 in the ventilator cap, exposed for photographing. 



Fig. 6. Prothonotary Warbler. Nest in cigar box on window 

 casing of engine house, on top of bridge. Lower figure, nest 



f>crcr<£. PYnrKPf 



