BIRDS OF ARGENTINA, PARAGUAY, URUGUAY, AND CHILE 331 



roted at Formosa, Formosa, August 23 and 24, and in September in 

 the area west of Puerto Pinasco, Paraguay, they were observed at 

 Kilometer SO, on September 10, 15, 1(3 (a male taken), and 20, and 

 at Kilometer 200 (near Laguna Wall) on September 25. These 

 birds frequented the dense branches of algarrobas and other low, 

 thorny trees that were scattered across small, open prairies, where 

 they hopped about under cover, avoiding the open save when flying 

 with a tilting flight from tree to tree. At intervals the tail was 

 jerked quickly two or three times, and occasionally one uttered a soft 

 note, lohit^ or a more explosive sound, whit sfee. 



A specimen taken September 30 when fresh had the bill blackish 

 brown number 3 ; iris Hay's brown ; tarsus and toes black. 



Berlepsch and Hellmayr '^ have considered Suhlegatus glnher 

 Sclater and Salvin a geographic form of fasciatus, a contention 

 not borne out by the scanty material at hand, since glaher has a 

 distinctly broader, heavier bill that is black in color and is more 

 distinctly uncinate at the tip. A skin seen from Santa Ana, in the 

 Urubamba Valley, Peru (male, July 15, 1916), one of the five re- 

 corded by Chapman -^ as Suhlegatus fasciatus fasciatus^ that has a 

 much smaller bill and is paler in color than my skins from the Chaco, 

 is probably Suhlegatus grlseocularis Sclater and Salvin,-* described 

 from Maranura, a short distance below Santa Ana. 



PITANGUS SULPHURATUS BOLIVIANUS (Lafresnaye) 



Saurophagus bolivianus Lafkesnaye, Rev. Mag. Zool., 1852, p. 463. 

 (Chuquisaca, Bolivia.) 



The eight specimens secured of this common bird are as follows : 

 Female, Formosa, Formosa, August 24, 1920; female, Kilometer 

 80, west of Puerto Pinasco, Paraguay, September 7: a pair, La- 

 valle, Buenos Aires, November 13; adult and juvenile males and 

 immature female, San Vicente, Uruguay, January 25, 26, and 28, 

 1921 ; female, Lazcano, Uruguay, February 8. The species ranged 

 through the humid eastern pampas of Argentina and Uruguay, 

 along the base of the Andes, and in the Chaco, north into Para- 

 guay, but was not seen in the semiarid interior. Points at which 

 it was recorded are as follow^s: Puerto Pinasco, Paraguay, Sep- 

 tember 3 and 30, 1920; Kilometer 80, September 6 to 20; Kilo- 

 meter 110, September 23; Kilometer 200, September 25; Formosa, 

 Formosa, August 5, 23, and 24; Riacho Pilaga, Formosa, August 

 8 to 21; Las Palmas, Chaco, July 13 to August 1; Kesistencia. 

 Chaco, July 8 to 10; Santa Fe, Santa Fe, July 4; Carrasco, Uru- 

 guay, January 9 and 16, 1921; La Paloma, Uruguay, Janivury 23; 



23 Journ. fur Ornith., 1905, pp. 4-5. 



«iU. S. Nat. Mus., Bull. 117, 1921, p. 96. 



'^ Proc. Zool. Soc. London, 1876, p. 17. (Maranura, Peru.) 



