Birds of Heligoland. 5 



40. CORVUS FRUGILEGUS. 



Common in spring from the middle of February to the 

 middle of April, and late in the autumn. 



41. CoRVUS MONEDULA. 



Common in spring and autumn. 



42. Pica caudata. 



One seen half a century ago, one shot in November 1876. 



43. Nucifraga caryocatactes. 



One killed in August 1844, a second in October 1853, and 

 a third a few years later. 



44. Garrulus glandarius. 



In October 1882 in many thousands ; but sometimes ten 

 years or more pass without any being seen. 



45. Perisoreus infaustus. 



Included on the authority of a boy, who described a bird 

 seen on the 14tli of April, 1849. 



46. Pyrrhocorax at.pinus. 



One shot half a century ago, three seen since. 



47. Pyrrhocorax graculus. 



One seen in May 1871, a second in March 1877. 



48. Lanius excubitor. 



Rare in spring, commoner in autumn. 



49. Lanius major. 



Not so rare as Lanius excubitor. 



50. Lanius meridionalis. 

 Once shot in spring. 



51. Lanius minor. 



One shot in June 1887 ; seldom a year without one or two 

 being seen. 



52. Lanius rufus. 



lias been shot five times during the last half-century, 

 always in spring. 



