20 44 Proceedings of the Royal Irish Academy. 



Colymbus septentrionalis, Linn. Bed-throated Divee. — Late autumn and 

 winter visitor to Clare Island, Achill. and the Mullet, but not so well 

 known as the Great Northern Diver. Warren has observed these birds 

 congregate on Killala Bay before leaving in spring. 



Podicipes auritus (Linn.). Sclavonian Geebe. — Has been obtained on Achill. 

 where it is known as a winter visitor, and is frequently found on 

 Blacksod Bay : two in nuptial plumage, now in the Barrington collection, 

 were obtained there out of a flock of six, 14th April, 1895 ; another 

 adult brought to Wallace, and identified by Ussher, was taken near 

 Belmullet, 17th April. 1907. 



This bird is a pretty constant winter visitor to the bays and 

 estuaries of Mayo and Donegal, and has been repeatedly taken in Kerry. 

 Its habits contrast with those of the Great Crested Grebe, which is 

 unknown on the west coast. 



Podicipes fluviatilis (Tunstall). Little Grebe. — Breeds on lakes, as in 

 Westport demesne, also on Achill and the Mullet, where it is scarce ;. 

 takes to the sea-water in Achill Sound in September : appears to 

 wander round the coast in winter; one was shot near Killybegs in 

 February, and another killed striking Slyue Head lighthouse in 

 November. 



Procellaria pelagica. Linn. Stoum-Petrel. — Has been repeatedly caught at 

 the Clare Island lighthouse in July and August, and probably breeds 

 in escarpments west of it, as it does on Duvillaun, Black Bock, Inish- 

 keeragh, Inishglora, and on the Mullet cliff's (Bichards), also on Kid 

 Island, the Stags, Big Island, Moistha, and isles of Donegal, Connemara, 

 and Kerry. The observations and specimens show that it frequents 

 the west coast from April or May until November (Barrington's 

 " Migration of Birds . 



Oceanodroma leucorrhoa Vieill . Fork-tailed Petrel. — Barrington received 

 specimens of tins bird from Black Bock (Mayo), in November, 1887. 

 and September, 189 i\ and on loth August, 1899, a much incubated egg. 

 Both birds and their eggs have been received from the Blaskets off 

 Kerry in different years ; and as the species has been proved to breed 

 sparingly in Mayo and Kerry, it may have another breeding-place off 

 Slyne Head. 1 This Petrel is very little known even on our west coast ; 

 but a good many, blown inland by storms, have been recorded from 

 various counties. It has been shot on Achill in 191 1. 



1 Thompson, vol. iii, p. 417. 



