12 EINAR LONNBERG 
was seen to approach land during the day. This difference in the habits of 
the Petrels on the two islands was no doubt due to the presence on Masafuera 
of the ever watchful buzzards which enjoyed to hunt fardelas. I let loose se- 
veral fardelas out of their burrows on Masafuera, and they were every one of 
them caught by the buzzards before they had time to save themselves over 
the sea. On Masatierra there were no buzzards, and this may explain why 
some petrels now and then dared to fly over this island even at daytime.» 
»The Shearwater occurred in thousands. It nested also on Santa Clara.» 
When H. SCHALOW (Fauna Chilensis 1897) wrote on the birds of Masa- 
tierra, it was not known to him that this species really bred there. 
Priocella antarctica Stephen (= glacialoides Smith) 
Santa @lanayit >. (/3 1O07: 
This petrel is, of course, only an accidental visitor. 
Pterodroma (Aestrelata) neglecta Schleg. 
Masatierra: 10° 7'/1, 16d 77/4, 1 2029/1, 2° dd! 29, 1 Oe ee Seu 
if IQI7. 
All these specimens represent the dark phase. The young bird collected 
“/4 is the darkest of all, being quite as black as a crow all over except on 
the throat, where it is mottled with white. It is quite interesting to find that 
its measurements of the wing and the culmen are just as large as in the adult, 
although it is so young that it still has a patch of down on the nape and 
neck, and the lower breast and belly covered with fluffy down of a smoky 
grey colour. 
The measurements of the specimens, in the same order as enumerated 
above, are: 
of of 2 of Oo fon co semipull. 
Wing. . . 300 203 290 295 204 296 207,5 mm. 
Culmen. . 32 31 Bs 3055 31 32 31 » 
The white shafts to the primaries is a good recognition mark for this 
species when compared with P¢. melanopus. 
The length of the wing is somewhat greater than usually recorded for 
this species, but Loomis has recently published just as large measurements for 
birds from the Kermadec Islands. 
»This Fardela bred exclusively within a very limited part of the island, 
viz. on the cliffs towards the sea below the Centinela. Most nests were inacces- 
sible in consequence of the steepness of the rocks. The eggs were laid without 
any real nest directly on the rock, or eventually on moss. The bird is fearless 
