How to Read the Maps 



The maps show the distribution of birds in Montana. Each species is listed by common and 

 scientific name in taxonomic order. The scientific order and family names are inserted to aid in 

 grouping the species. To help users of this book, the common family name is placed in the top 

 outside margin of each right hand page for the predominant group of species found on that page. 



As explained above, this edition of Montana Bird Distribution is cumulative, adding new 

 bird records to those documented historically. Latilongs can have historic as well as current 

 sighting information. "Historic" bird records are considered pre-1991 sightings. These records 

 appear in the center of the latilong. The most recent observations, gathered in the last five years 

 (1991 - 1995) are displayed in the quarter latilong position of each map. 



Figure 4. Example of Distribution Map for a Bird with Special Status. 



Common name 



Scientific name 



Number of sightings reported 



from 1991- 1995 __ 

 Total number of documented 



records (if fewer than 20) 

 Bird status symbol (see p. 6 - 7) 

 Most recent sighting year & location 



Winter Distribution Map 



Northern Hawk-Owl 



Sumia ulula 



T991-95 = 4^994 - QLL 2B ) 

 .n=18 



Observation symbols (B, b, t, W, w) described on pages 7-8. 

 Center observations = Historic observations (pre-1991) 



Comer observations (quarter latilong) = Most recent observations (1991-1995). 



Bird Status and Number of Reported Sightings 



TTie number of reported sightings and status of each species is provided on the lines beneath 

 the bird's name. Symbols and their definitions are explained below. 



1991-95 = 



(introduced) 



The total number of bird sightings reported for this species in the last five years, 

 1991 - 1995. If no sightings were turned in during the last five years 

 (1991-95 = 0) the year and location (latilong or quarter latilong) of the most 

 recent sighting is listed. 



Not native to North America or a native North American species transplanted 

 to Montana (see Appendix D). 



