In a message dated 6/14/2010 7:58:02 P.M. Central Daylight Time, richter@xxxxxxxx writes: I like wrens, but..... it is always costly to have them in the yard. I wonder what, if any, this effect may have on nearby house sparrow nests. Is there evidence to suggest that wrens go after house sparrows as well as bluebirds and others? Thus far, no wren challenges on the Grant Park Bluebird Trail here in SE Mke Co., though house sparrows have tried repeated nesting. Thanks. Betsy #################### 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.