Appendix B. Species for Which Subspecies 



Information is Needed 



It seems likely that one or more of the subspecies listed in this Appendix will be elevated 

 to species status in the near future. Therefore, observations and information on breeding habits 

 of these birds are much needed at the subspecies level. This is especially true for the Solitary 

 Vireo, as scientific evidence currently suggests that it will be divided into at least two species 

 in the near future. 



For the first time, this book provides maps displaying both species and subspecies 

 distribution for the birds listed in this Appendix. Bird distribution maps were created for each 

 subspecies to encourage birdwatchers to submit future records at the subspecies level. No 

 subspecies maps appear for the following subspecies or forms because of a lack of data: White- 

 winged and Gray-headed subspecies of the Dark-eyed Junco; and Gray-crowned and Gray- 

 headed (Hepburn's) forms of the Gray-crowned Rosy-Finch. 



The reason for requesting subspecies information is illustrated by two changes made since 

 the last edition of this book. Both the Rosy Finch and the Northern Oriole, for which we 

 requested subspecies information in the Fourth Edition, were each officially split into several 

 species (see Taxonomic Changes and Subspecies on pages 1-2). Few records have been 

 submitted with what was then subspecific designations; hence many of Montana's "Rosy Finch" 

 and "Northern Oriole" records cannot be assigned to either of the currently recognized species. 



Species for which information is requested at the subspecies, race or form level: 



Northern Flicker 



Red-shafted Flicker 



Yellow-shafted Flicker 

 Solitary Vireo* 



Cassin's (Western) Vireo 



Plumbeous (Rocky Mountain ) Vireo 

 Yellow-nimped Warbler 



Audubon's Warbler 



Myrtle Warbler 



Dark-eyed Junco 



Slate-colored Junco 

 Montana (Oregon) Junco 

 Pink-sided Junco 

 White-winged Junco 

 Gray-headed Junco 

 Gray-crowned Rosy-Fincli 

 Gray-crowned form 

 Gray-headed (Hepburn's) form 



The subspecies of these five species are shown in the current edition of several major field 

 guides, with the exception of Cassin's Vireo which is not illustrated in the Birds of North America 

 (Robbins et al., 1983). 



*Added to this list since the Fourth Edition. 



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