Buffeted by years of logging and the invasion of a tougher owl, populations of the northern spotted owl are falling year after year, despite sweeping protections for the old-growth forests it inhabits. Now, genetic problems are adding to the reasons for worry. A just-released study found the remaining birds are so genetically similar, they are at risk of entering an "extinction vortex."
http://seattletimes.nwsource.com/html/localnews/2008109742_spottedowl13m.htmlThe northern spotted owl — an endangered icon that spurred a rescue effort so sweeping it brought old-growth logging to a virtual standstill in the Northwest — is now closer than ever to extinction.
Fourteen years after old-growth logging was banned on most federal lands to protect the owls, their numbers are falling year after year.
While there is disagreement over how bad it could get, some are contemplating the virtual disappearance of a bird elevated to sainthood by environmentalists and hung in effigy by loggers.