REPORT ON THE MIGRATION OF BIRDS. 199 



respectivel}' ; the direction of their flight was usuall}' W. or N.W. 

 On Dec. 13th a flock passed S. ; most passed with a S., S.S.W. 

 or S.W. breeze, in cloudy or clear weather; in tw^o instances with 

 a N.W. w^nd. They were observed during daylight. 



Wild Swan. — At Devaar on Dec. 11th, six seen at 4 p.m., 

 light airs, with haze ; and on Jan. 4th, three were seen Hying 

 south, in clear weather, at Rhuvaal lighthouse. We say nothing 

 of the reported occurrence of Cygniis americanus on our coasts, 

 but think the record (p. Ill) premature. 



Wild Duck. — At Butt of Lewis a Duck was killed on Dec. 1st, 

 at 8 p.m., wind E., light and clear. Others occurred in November 

 and December at Rhuvaal and Devaar. At Rhuvaal, between 

 Nov. 1st and 30th, three or four hundred Ducks passed between 

 8 a.m. and 3 p.m. ; wind variable, light, and showery weather. 

 Most of the migration seems to have been observed through the 

 day. In none of the reports are the species identified, being 

 described as either " Ducks" or "Wild Ducks." 



Widgeon, Anas penelope. — At Monach Island on Oct. 27th, a 

 few were seen at 12 noon; wind S.S.E., fresh, and clear. 



Sheldrake, Tadorna vidpanser. — At Pladda, on May 23rd, 

 six (tw^o males and four females) seen at 1 p.m., wind N.E., light, 

 and haze; remained on the island till the middle of June. 



Eider Duck. — At Rhu Stoir on June 30th, two males and 

 two females seen at 11 a.m.; wind S., fresh breeze, showers. At 

 Dhuheartach on Dec. 3rd, twenty seen at 10 p.m. ; wind N.E., 

 light, clear. At Devaar on Dec. 13th, twelve seen at 1 p.m. ; 

 wind N.N.W., light breeze, haze. 



Storm Petrel. — At Butt of Lewis in July, August, and 

 September, an occasional bird at the glass, always at night, 

 always in hazy or rainy weather, generally "haze and rain" 

 together ; wind in three out of four instances S.W., and once on 

 July 3rd, W.N.W., stormy. At Rhu Stoir a good many were 

 observed "not on passage"' betw^een 17th and 20th Aug. between 

 6 p.m. and 10 p.m., wind N. to E., light, haze and rain; and at 

 Rhinus of Islay on Sept. 17th, one struck at 2 a.m., wind S., 

 light, and haze. 



Sea-fowl. — The following notes upon sea-fowl as observed at 

 several stations — notabl}^ at Cape Wrath — will, we think, prove 

 interesting : — At Cape Wrath, Mr. M'Gill reports all the sea-fowl 

 as deserting their breeding-haunts there on Aug. ICth, and both 



