166 REPORT ON THE MIGRATION OF BIRDS. 



Skelligs. — February 25th, 10 p.m., wind strong S.W. ; misty; 

 first heard on rock. August 26th, the last night bird heard 

 on rock. 



Fork- tailed Petrel (Cymochorea leucorrhoa, Vieill.). 



Eagle Island, W. — October, 2d week, one caught at lantern. 

 [Leg and wing received.] 



Stormy Petrel {Frocellaria pelagica, Linn.). 



Fastnet. — August 24th, three about lantern in night; first 

 this season. 



Coningheg Lightship. — September 21st to 23d, several about 

 ship during day ; wind fresh, clear. 24th, three on ship, mid- 

 night. Noted also October 5th, 8th, 10th, to 13th ; and on 15th 

 there was storm from W. ; great numbers about ship. 



Barrels Bock Light-ship. — September 25th, two. October 8th, 

 five. 12th, fourteen about ship ; stormy. December 9th, five ; 

 wind N.W., fresh. 



Tuskar Bock. — September 26th, 4 a.m., one caught alive. 



Arklow South Light-ship. — October 15th, one in water about 

 ship. 



Bockabill. — June 8th, 4 P.M., six ; wind strong S. 



Bathlin OBirne. — October 1st, one found dead on island. 



Eagle Island, E. — May 24th, one caught alive. [Received in 

 flesh.] The only one seen since I came here. 



Blackrock, Mayo. — May 5th, some about light, 1 A.M. ; foggy ; 

 the first seen. June 5th, numbers about light during night ; 

 wind light S.W., gloomy. September 24th, 1 a.m., one caught 

 at lantern. 



Tearaght. — April 14th, several flying round light all night. 

 October 30th, some struck 2 a.m., none killed. 



Skelligs. — April 27th, 10 p.m., one struck, disabled. May 7th, 

 first heard under stones. 



Razorbill (Alca tor da, Linn.). 



Fastnet. — October 26th, several large flocks passing S.E. at 

 intervals of about 15 minutes. December 10th, large numbers 

 about rock. 



Mine Head. — February 14th, several young Razorbills seen at 

 intervals. July 9th and 10th, several. August 9th, young 



