THE BIRD-LIFE OF LONDON 



The adult Swift has the general colour of the plumage 

 blackish brown, merging into greyish white on the throat, 

 and the upper parts possess a bronze-like sheen. The 

 tail has only ten feathers. Bill black ; tarsi covered with 

 dark brown plumes ; toes dark brown ; irides brown. 

 Length about J% inches. The nestling has the white 

 patch, on , the throat purer in tint, and most of the 

 feathers of the upper parts have greyish margins. 



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