Didn't find Pacific Loon in National Geo Guide or update that says it includes 41st (Jul 97) AOU supplement. Did finally find my copy of the new ABC guide and it has Pacific loon with range map that looks like Natl Geo map for Arctic loon and says that Arctic loon is found only in western Alsaka with few winter records futher south. Picture of the two species look very similiar. Is this a recent split(must be,duh)? Where do Artic loons winter? Tom Beal Glenn Dale, MD