Appendix B, Table 1. Montana harlequin duck breeding and probable breeding occurrences, 

 1995. 



B = Breeding, PRB = Probable breeding, BU = Breeding status unknown. 



A = 20+ pairs within a single occurrence, B = 5 - 19 pairs within the occurrence and a minimum of 10 

 pairs within the occurrence and other occurrences within 20 km, C = 3+ pairs within the occurrence; if 

 5+ pairs then < 10 pairs within the occurrence and other occurrences within 20 km. 

 D = 1-2 pairs, U = Unknown. Not enough data to place in a range of 2 categories. 

 BIR = Blackfoot Indian Reservation, GNP= Glacier National Park, LCNF = LewisClark National Forest. 



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