2016-09-06_GENERAL DOCUMENTS - M1977141

• Permit No: M1977141
• IBM Index Class Name: GENERAL DOCUMENTS
• Doc Date: 9/6/2016
• From: Boulder County
• To: DRMS
• Email Name: MAC
• Email Name: WHE
• Media Type: D
• Archive: No

• Again recorded definitive sonar calls of eastern pipistrelles (tricolor bats)
(Perimyotis sttbflavtts) at Hall Il. (See 2013 info).
• Three sites tested in the Aggregate Site showed relatively high levels of
dissolved calcium, which is critical for nearby maternity colonies. Several
species of bat were documented using the pond sites at the Aggregate Mine
Site for watering. This site has extremely high diversity.
Species documented (and status listings):
o Fringed myotis (Myotis thysanodes)
■ Tier 1-Colorado State Wildlife Action Plan
■ BCCP Species of Special Concern
o Townsend's Big-eared Bat (Corvnorhintts Townsendii)
■ State species of Special Concern
■ Tier 1- Colorado State Wildlife Action Plan
■ BCCP Species of Special Concern
o Tri-colored bat(formerly Eastern Pipistrelle) (Peryntyotis sttbflavens)
■ BCCP Species of Special Concern
o Little brown bat (Mvotis lucifugus)
■ Tier 1- Colorado State Wildlife Action Plan
■ Petitioned species for listing- USFWS
■ BCCP Species of Special Concern
o Small-footed bat (Myotis ciliolabrum)
■ BCCP Species of Special Concern
o Long-eared bat (Myotis evotis)
■ BCCP Species of Special Concern
o Silver-haired Bat (Lasionycteris noctivagans)
■ BCCP Species of Special Concern
o Big Brown Bat(Epesticus fuscus)
■ BCCP Species of Special Concern
o Mexican (Brazilian) free-tailed Bat (Tadarida brasiliensis)
■ BCCP Species of Special Concern
o Hoary Bat (Lasiurus cinereus)
■ Tier 2-Colorado State Wildlife Action Plan
■ BCCP Species of Special Concern
o Long-legged myotis (Myotis volans)
■ BCCP Species of Special Concern
2015-
• Hall II property along the St. Vrain River appears to provide an important
migratory corridor for hoary bats (Lasittrus cinereus) and silver-haired bats
(Lasionycteris noctivagans).