456 Dr. E. Lonnberg on Birds from 



23. Tyrannus melancholicus Vieillot. 

 San Luis, January 19th, 1902. 



-24. Atticora cyanoleuca (Vieill.). 

 A young bird, shot January 27th, 1902, at San Luis. 



25. Progne furcata Baird. 



Iris dark brown. San Luis, February 6th, 1902. This 

 Swallow flew very high and with great speed. 



26. Mimus dorsalis (d'Orb, et Lair.). 



Iris brown, according to the label, but stated to be " pale 

 greenish " in Cat. Birds Brit. Mus. ' ' according to d'Orbigny." 



The only specimen observed was shot at San Luis, 

 January 29th, 1902. 



27. Turdus fuscatus d'Orb. et Lafr. 

 San Luis, February 1902. Iris brown. 



28. Embernagra olivascens (d'Orb. et Lafr.). 



A male specimen from San Luis, January 23rd, 1902. 

 Iris brown, bill orange. 



29. Sycalis flaveola (Linn.). 



A typical male specimen was shot at San Luis in January 

 1902. Mr. von Hofsten has labelled a bird shot at the 

 same place a little later (February 5th) as the female of 

 the same species, but it has considerably less yellow in its 

 plumage above than is stated in Cat. Birds Brit. Mus. 

 vol. xii. Very similar to the latter are two young birds, not 

 in full plumage, shot at Tatarenda in April 1902. 



Mr. von Hofsten informs me that Sycalis flaveola was 

 the most common bird at San Luis and Tanja. It places 

 its nest under the roof-tiles, in stone walls, and in similar 

 places. The eggs vary from 20 to 22 mm. in length and 

 their breadth is about 15 mm. Their ground-colour is 

 whitish, sometimes with a slight tinge of greenish. They 

 are thickly and irregularly spotted with brown, sometimes 

 blackish, sometimes reddish. The spots are occasionally 

 coufiuent and make large blotches near the larger end, 

 where they are more numerous. They often form a thick 

 broad ring of dark colour. Usually the whitish ground- 



