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INSESSORES. 



Sword-bill Humming Bird. 



pair of wings. Of these, the Chestnut-tufted Co- 

 quette is the most beautiful. Others again with 

 crests of various forms and dimensions ; some, as in 

 the Delalande Humming Bird, whose crest when 

 elevated measures nearly as long as the body of the 

 bird. 



But the most striking difference is in the various 

 forms and peculiar development of the tail. The 

 Polytmus, with its long, dangling plumes, has already 



