213 Mr. A. Newton on the Irruption of 



the island as late as September. The most northern locality 

 ever recorded, as far as I know^ for the occurrence of the species. 

 Professor Reinhardt, on authority of Herr Miiller, in litt., 5th 

 February, 1864. 



146. Ross, 7° 46' W {circa). One of two shot, 8th June. 

 Lord Clermont, ' Zool.' p. 8934. 



147. Drumbeg, 6° 55' to 8° 40' W. ?* A male bird sTiot, 

 apparently 17th June ; and a female captui-ed alive the following 

 day, out of a flock of thirteen or fourteen previously observed. 

 Mr. Sinclair, ' Field,' 20th and 27th June. 



148. Naran, 8° 26' W.f A pair shot " lately." Mr. M. B. 

 Cox, ' Field,' 18th July. This is the most western locality for 

 the species recorded with precision. 



Thus much for the recorded facts of the irruption. A brief 

 recapitulation of the most remarkable points only is necessary. 

 I have been able to trace the course of the invading host through 

 more than thirty-three degrees of longitude, from Brody in Gal- 

 licia (No. 1) to Naran on the west coast of Donegal (No. 148) ; 

 and it will be seen that towards the western limits of Europe it 

 extended over some five-and-twenty degrees of latitude, from 

 Biscarolle in Gascony (No. 109) to Thorshavn in the Fseroes 

 (No. 145). Unfortunately I am at present ignorant of the exact 

 time of its first appearance in the most eastern localities. The 

 earliest date given with precision is the 6th May, at Sokolnitz 

 in Moravia (No. 10). A week later (the 14th May), the right 

 flank of the advancing army had reached Tuchel in West Prussia 

 (No. 6) ; on the 17th its centre was observed at Polkwitz in 

 Silesia (No. 12). On the 20th May birds occurred at Wohlau, 

 in Anhalt (No. 19), and on the Danish island of Laaland 

 (No. 25). The following day (the 21st) they had not only over- 



* I must apologize for a mistake on my map with reference to this 

 locaUty. The name is there spelled ' Drugoobe,' instead of ' Drumbeg'j 

 but this place is not marked on any map that I have had access to. A 

 living male bird, said to have been obtained in the same county, was presented 

 to the Zoological Society by Lord Francis Conyngham, 11th December. 



+ In the notice, the name of the locality is spelled " Nairn "; but I have 

 little doubt Naran is the place meant. 



