N.W. Argentina and the Bolivian Chaco. 459< 



4. Columba maculosa Tcmm. 



In great Hocks near water, Colonia Crevaux, ia April 1902. 

 Iris greyish yellow (" bianca," according to Salvadori). 



5. Columba picazuro Temm. 



Near Colonia Crevaux, April 1902. Common in large 

 flocks. Iris light grey (stated to be " rosso-fiamma " by 

 Salvadori, t. 6'.). 



6. Columbula picui (Temm.). 



In great flocks in the dry woods at Colonia Crevaux, 

 April 1902. Iris lilac. 



7. PoRPHYRIOPS MELANOPS (Yicill.). 



Two specimens shot at Tatarenda, March 26th, 1902, agree 

 perfectly as regards coloration with the description in the 

 Cat. of Birds (xxiii. p. 182) except that the inner secondaries 

 arc not "edged externally with white/ - ' but have the outer 

 web spotted and mottled with white. In addition to this I 

 may observe that the head does not shew the same colour as 

 the back, but the upper surface o£ the head from the base of 

 the bill and the frontal shield is quite black, while on the 

 occiput it becomes dark brown and soon passes into the 

 olive-brown of the hind-neck. The dark ashy colour of 

 the sides of the head extends upwards to the eyebrows. 

 The bill seems to have been olive-green. 



-j-8. Gallinula gale ata Bp. 



Tatarenda, March 25th, 1902. Length of wing 190 mm. 



9. Fulica leucoptera Vieillot. 



A young bird, with the frontal shield not much developed, 

 from Tatarenda, April 1902. The age may account for the 

 fact that the iris was yellow (not " fiery red," as stated in 

 Cat. Birds, vol. xxiii. p. 224). 



10. Podicipes americanus Garnot. 

 Iris crimson. 



Two adult birds shot at Tatarenda in March 1902. Iris 

 yellow. 



A young specimen, not yet full-grown, shot the same day 



2 ii 2 



