I 6 EINAR LONNBEKG 



Diomedea melanophrys Boie 

 Native name: Pajaro carnero. 



Masatierra: i J* ^/s 1917. »Ins yellow.* 



As this Albatross is known by a special name in Juan Fernandez, it 

 must occur there pretty regularly, but it was not recorded by Schalow, 1897. 



Spheniscus magellanicus Forster 



Santa Clara: i J* -^i 1917. 

 Masatierra: i ^ ^Vi 1917- 



Both are immature birds without pectoral band. Former authors have 

 recorded Sph. huniboldti from this locality. To judge from the small dimen- 

 sions and the white inside of the flippers I must, however, name these spe- 

 cimens as above. 



Columba livia Briss. var. 



Masatierra: i ? Vu i c^, i ? 'Vi, i $ ''/u 1 (^ juv. =^^3, 1 cT V4, i ? 

 ^3/4, I c?, I ? '74. I ? Vs 1917- 



As already pointed out by other authors who have written about the 

 Ornis of these islands, these feral pigeons vary decidedly in a melanistic di- 

 rection. Apparently the characteristic features of the breed are not yet firmly 

 fixed. The present specimens have all of them a grey rump like C. inter^nedia, 

 and the two palest specimens (one young and one old!) resemble intermedia 

 very much, although they are darker The darkest has the whole back very 

 dark slaty, almost black, and the others are intermediate, with the back and 

 the wings more or less mottled with slaty blackish and with the black from 

 the upper neck descending more or less far down on the back. One of the 

 darkest specimens, an old male, has small subtriangular, apical white spots on 

 the upper wing coverts, which is a very interesting feature, because widely distant 

 species display a similar pattern. In one or two others something simi]ar may 

 be discerned, although not quite so plainly. 



The length of the wing varies between 214 and 226 mm. Iris is stated 

 to be black by the collector. 



»It bred very commonly along the coast on the steep cliffs. » (K. B.). 



The fruits of Silybum marianum (introduced) constitute the chief food 

 during the summer, and Mr. BACKSTROM found its crops filled with such. He 

 attributes the absence of pigeons on Masafuera to the absence or scarcity of 

 Silybum on that island. 



