184 OsGOOH, New Nori/t American Birds. \ t^\ 



the absence of the alder brush ' makes it improbable that it 

 ever has been or ever will be found there, it seems necessary to 

 use the name aoualaschkce for the Hermit Thrush which breeds 

 nearest to Unalaska. An exactly parallel case is found in Pas- 

 serella iliaca nnalaschensis which has been restricted in the same 

 manner.^ Birds from Nushagak and Kukak Bay on the Alaska 

 Peninsula may therefore be taken as typical examples of H. aou- 

 alaschkce. These do not seem to differ from numerous specimens 

 from Kadiak but they are decidedly paler and grayer than those 

 from Sitka and the Queen Charlotte Islands. It is therefore 

 necessary to name the southern form, which corresponds in char- 

 acter and in geographic distribution to such subspecies as Passer- 

 ella iliaca to-ivnsendi, and Jiinco hyetnalis oregomis. Specimens 

 from the vicinity of Lynn Canal and Yakutat are somewhat inter- 

 mediate though nearer to aoualaschkce. Both aofia/aschkce and 

 verecimda are found in California in winter and they differ at this 

 season in practically the same way and to the same degree that 

 they do in summer. Winter specimens of both forms from the 

 same locality (Fort Klamath, Oregon) are in the National Mu- 

 seum collection and both are represented at least as far south as 

 San Bernardino, California, 



The name Turdus uauiis which was proposed by Audubon in 

 1839 has been applied to the western Hermit Thrushes, but a 

 careful examination of the facts connected with this name seems 

 to prove that it should be used for the eastern bird. The most 

 conclusive proof is the original plate (No. 419, fig. 1) which 

 though imprinted Turdus ?niuor is cited under Turdus ?ia?ius. It 

 shows a bird with brown sides which is absolutely diagnostic of 

 the eastern bird. The text also indicates that the original 

 material was practically all eastern. In order to understand the 

 case thoroughly it may be best to quote from Audubon. Pre- 

 facing the proposal of the name uauus ' he says : ^ " It is ex- 



^ It is possible that alders may be found on some remote parts of the 

 island, in which case the occurrence of both Hylocichla and Passerella would 

 be probable. 



^ Cf. Ridgway, Auk, XVII, 30, Jan., 1900. 



^ Orn. Biog., V, 204, 1839. 



