U. S. NATIONAL MUSEUM 



BULLETIN 133 PL. 9 



Open Forest OF Calden iProsopis nigra i. Nesting Ground of Banded 

 Falcon (Spiziapteryx circumcinctus) and Boyero 'Taenioptera 



IRUPERO) 



Near Victorica, Pampa, December 23, 1920 



The Sombre Todo (Iodina rhombifolia), a Common, Spiny-Leaved Tree 



OF THE Pampas 



\'iclori('a, Pampa, December 2S, 1920 



