U. S. NATIONAL MUSEUM 



BULLETIN 133 PL. 15 



Two Nests'of the Hornero, or Ovenbird (Furnarius r. rufus), on 

 Face of Clay Bank. Note That One Is Entered from the Right 

 and the Other from the Left 



La Paloma, Uruguay, January 23, 1921 



Hornero, or Ovenbird (Furnarius r. rufus), and Nest 

 ON Side of Palm 



San Vicente, Uruguay, January 27, 1921 



