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Location USA, Illinois
Central coordinates 89o 22.50' West  41o 58.02' North
IBA criteria A1
Area 1,720 ha
Altitude 199 - 263m
Year of IBA assessment 2009


Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Cerulean Warbler Dendroica cerulea breeding  2003  40 breeding pairs  good  A1  Vulnerable 

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Castle Rock State Park and Lowden-Miller SF. Downloaded from on 24/10/2016

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