ORIGIN AND DISTRIBUTION OF THE HAWAIIAN AVIFAUNA. 



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The ornis of the far-outlying island of Laysan is quite different, though the presence 

 of the Himatione, which is closely allied to //. sanguvnea, and the Telespiza, winch is 

 not far from Bhodacanthis, show clearly the affinity with the Sandwich Islands. 



As for a. our knowledge goes, Oahu has lost more species than the other islands. 

 The Psittirostra, Eemignathm ellisianus, Heterorhynchus luddus, MoU apiaalis, Phteonu, 

 oakenns are evidently extinct, and the Lo,ops is on the verge of extinction. On Hawaii 

 at least one (or two?) species of Pemula and the Chatoptila are gone, while Ctridops, 

 Drepmis, and perhaps others are doomed. 



It is however, to be feared that on most of the islands species have disappeared 

 of which' we have no trace or knowledge left. This may be inferred from the isolated 

 occurrence of Hemignathus lanaiemis and Drepanorkamphus fmereus, and the very 

 imperfect knowledge of the Hawaiian fauna before Wilson's, Palmer's, and Perkins's 



explorations of the islands. 



A peculiar feature is the absence in the Hawaiian Archipelago of some fam.hes 

 of birds which are otherwise numerous and characteristic for the islands in the Pacific 

 Ocean. Tims the Pigeons and Kingfishers are entirely absent, and an Acrocephalus 

 is only found on Laysan. 



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