Birds in Mr. Gdtke's Collection. 175 



are clue to Professor Newton for the assistance he has ren- 

 dered me in preparing these notes. 



Aquila chrysaetus (Linnaeus). 

 Immature, Nov. 9th, 1867. 



Haliaetus ALBiciLLA (LinnsBus) . 



Nov. 4th, 1870. Shot by Mr. Gatke's son, and in the collec- 

 tion. Another, a fine mature bird, was picked up dead on the 

 beach of Sandy Island on the last day of January 1875. 



Falco gyrfalco, Linnaeus. 

 Oct. 12th, 1863. 



Falco vespertinus, Linnaeus. 



Recent occurrences are June 4th, 1859 ; May 20th, 1868. 

 A fine old male. 



Falco cenchris, Naura. 



A single example occurred some years since in May, 



MiLvus iCTiNus (Savigny). 

 Not uncommon as a migrant. 



MiLvus MIGRANS (Boddacrt) . 



Turns up every year on the island, either in the spring or 

 autumn. 



BuTEO VULGARIS, Lcach. 



Occasional; turning up also sometimes in winter, when 

 hard frosts set in. 



BuTEO LAGOPUS (J. F. Gmclin) . 



A few in the spring and autumn, but is the least numerous 

 of any of the Buzzards. 



Pernis apivorus (Linnseus). 



Mr. Gatke says this is by far the most common of the 

 Buzzards, not, however, appearing in the spring before it 

 really has become warm, returning southward again in Au- 

 gust and September. Besides single specimens, and two and 

 three at a time, there are during both •periods of migration 

 not very unfrequently such flights that they may almost be 

 termed thousands — not all massed together, but passing over 



