Here are three pictures of the Tropical Mockingbird I took late yesterday afternoon. Two are of the Tropical Mockingbird as it was flying into the tree it and the Northern seem to be building a nest in. You can clearly see the tail feathers spread in the two shots. I offer no opinion because I am not familiar with this species. David Hanson Baytown/Mont Belvieu Area In a message dated 4/21/2012 11:28:47 A.M. Central Daylight Time, crharrison@xxxxxxxxxxx writes: Texbirders, I still remember the first time I saw a Tropical Mockingbird in the lowlands of Tabasco, Mexico. I remember thinking, "Wow, if this bird ever showed up in the US, there would be no way to tell it wasn't just a slightly aberrant Northern Mockingbird. Good thing they aren't migratory." So now I ask the same question..how do we eliminate the more likely explanation of a slightly aberrant Northern Mockingbird that simply lacks the white wing patches (has anyone seen the tail feathers well?)? Are their vocalizations any different. Chris Harrison San Antonio, TX TEXBIRDS help file and Texas birding links at: http://moonmountaingroup.com/texbirds TEXBIRDS help file and Texas birding links at: http://moonmountaingroup.com/texbirds Edit your Freelists account settings for TEXBIRDS at //www.freelists.org/list/texbirds