Hi All, When an exotic species such as a EC dove starts to breed far afield from its historical range, when is it considered invasive... when it's too late to control it's new population? Maybe, at the point when it starts to displace endemic species? John Stuckert Pewaukee, WI #################### You received this email because you are subscribed to the Wisconsin Birding Network (Wisbirdn). To UNSUBSCRIBE or SUBSCRIBE, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn To set DIGEST or VACATION modes, use the Wisbirdn web interface at: //www.freelists.org/list/wisbirdn Visit Wisbirdn ARCHIVES at: //www.freelists.org/archives/wisbirdn