A somewhat ungermane question about Blue Jays: can anyone direct me to a site, or a paper, or somesuch that explains what the most common Blue Jay vocalizations mean? Sean Paul Kelley Central Austin On Fri, Sep 7, 2012 at 12:48 PM, Joseph Kennedy <josephkennedy36@xxxxxxxxx>wrote: > There are some other good sources of blue jay migration data. Several of > the hawk watches also count land bird numbers for each day. >