APPENDIX : DATES OF PASSAGE 129 



Appendix II. — Dates of the Movements of the 

 Birds of Passage in Spring and Autumn 



The following data have been mainly derived from 

 observations made at stations where the various species 

 are visitors on passage only. 



Much remains to be ascertained regarding the times 

 of the migrations of certain of the Ducks, Geese, Gulls, 

 Divers, and other swimming birds, whose passages 

 are performed at sea, and hence largely escape notice. 

 The periods of the passage movements of some 

 of these, and of several other species, are not given, 

 as the data available are too fragmentary to be of 

 value. The latest dates quoted often, no doubt, relate 

 to the appearance of stragglers : — 



Grey Crow. 



Spring. — 9th March to 12th May. 



Autumn. — 3rd August to 2nd November. Chiefly October. 



Starling. 



Spring. — 22nd March to 17th April. 



Autumn. — 9th September to 22nd November. Chiefly October. 



Chaffinch. 



Spring. — 22 nd March to 12 th May. Chiefly April. 

 Autumn. — 3rd September to 20th November. Chiefly October to 

 mid-November. 



Brambling. 



Spring. — 8th April to 20th May. 



Autumn. — 17th September to 15th November. Chiefly late September 

 and in October. 



I. I 



